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Pawlak M, Pobłocki K, Drzeżdżon J, Gawdzik B, Jacewicz D. "Isocyanates and isocyanides - life-threatening toxins or essential compounds?". THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 934:173250. [PMID: 38761928 DOI: 10.1016/j.scitotenv.2024.173250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 04/14/2024] [Accepted: 05/12/2024] [Indexed: 05/20/2024]
Abstract
Isocyanides and isocyanates are some of the most reactive compounds in organic chemistry, making them perceived as compounds with high potential for use in both the laboratory and industry. With their high reactivity also comes several disadvantages, most notably their potentially high toxicity. The following article is a collection of information on the toxic effects of the isocyanide group on the human body and the environment. Information on the mechanism of how these harmful substances affect living tissues and the environment, worldwide information on how to protect against these chemicals, current regulations, and exposure limits for specific countries is compiled. The latest research on the application uses of isocyanates and isocyanides is also outlined, as well as the latest safer and greener methods and techniques to work with these compounds. Additionally, the presented article can serve as a brief guide to the organic toxicity of a group of isocyanates and isocyanates.
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Affiliation(s)
- Marta Pawlak
- Faculty of Chemistry, Department of Environmental Technology, University of Gdansk, Wita Stwosza 63, Gdansk, Poland.
| | - Kacper Pobłocki
- Faculty of Chemistry, Department of Environmental Technology, University of Gdansk, Wita Stwosza 63, Gdansk, Poland
| | - Joanna Drzeżdżon
- Faculty of Chemistry, Department of Environmental Technology, University of Gdansk, Wita Stwosza 63, Gdansk, Poland
| | - Barbara Gawdzik
- Institute of Chemistry, Jan Kochanowski University, Uniwersytecka 7, 25-406 Kielce, Poland
| | - Dagmara Jacewicz
- Faculty of Chemistry, Department of Environmental Technology, University of Gdansk, Wita Stwosza 63, Gdansk, Poland.
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Hoang PH, Dat HT. Cascade reaction for bio-polyol synthesis from sunflower oil over a W/ZSM-5 zeolite catalyst for the fabrication of a bio-polyurethane-based porous biocomposite with high oil uptake. RSC Adv 2024; 14:20974-20981. [PMID: 38957584 PMCID: PMC11218734 DOI: 10.1039/d4ra03671a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Accepted: 06/19/2024] [Indexed: 07/04/2024] Open
Abstract
A W/ZSM-5 zeolite was successfully prepared by incorporating tungsten transition metal into a zeolite structure using a conventional impregnation method. The as-obtained W/ZSM-5 zeolite was characterized using several characterization techniques such as XRD, IR and SEM-EDS. The catalyst was then applied to a cascade, single-batch reaction to synthesize bio-polyol from sunflower oils using H2O2 in isopropanol solvent. The obtained results indicated that the W/ZSM-5 zeolite had high catalytic efficiency in the epoxidation of the double bond of vegetable oil and the epoxy ring opening reaction to form bio-polyol. The effect of different reaction conditions on bio-polyol synthesis, such as the dosage of the catalyst and reaction time, were investigated. Bio-polyol was obtained from sunflower oil with a hydroxyl number of 160 mg KOH per g and functionality of 2.9 OH groups per mol. The as-synthesized sunflower oil-based polyol was used to replace fossil-based polyol in the fabrication of a bio-polyurethane-based composite with high oil uptake capacity. The oil adsorption capacity of the porous polyurethane-corn stalk composite was relatively high, up to 15.07 g g-1. In comparison with neat polyurethane and lignocellulosic materials, the new porous bio-composite had higher oil uptake capacity.
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Affiliation(s)
- Phan Huy Hoang
- School of Chemistry & Life Science, Hanoi University of Science & Technology No.1 Dai Co Viet Street Hanoi Vietnam
| | - Hoang Tien Dat
- Research Institute of Pulp & Paper Industry No.59 Vu Trong Phung Hanoi Vietnam
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Yıldırım A. Sustainable tandem acylation/Diels-Alder reaction toward versatile tricyclic epoxyisoindole-7-carboxylic acids in renewable green solvents. Beilstein J Org Chem 2024; 20:1308-1319. [PMID: 38887569 PMCID: PMC11181201 DOI: 10.3762/bjoc.20.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 05/24/2024] [Indexed: 06/20/2024] Open
Abstract
Tandem Diels-Alder reactions are often used for the straightforward formation of complex natural compounds and the fused polycyclic systems contained in their precursors. In the second step of this reaction, regio- and stereochemically controlled intramolecular cyclization leads to the formation of versatile nitrogen-containing tricyclic systems. However, these useful organic transformations are usually carried out in highly toxic organic solvents such as benzene, toluene, chloroform, etc. Despite recent efforts by 'green chemists', synthetic chemists still use these traditional toxic organic solvents in many of their reactions, even though safer alternatives are available. However, in addition to the harmful effects of these petrochemical solvents on the environment, the prediction that their resources will run out in the near future has led 'green chemists' to explore solvents that can be derived from renewable resources and used effectively in various organic transformations. In this context, we have shown for the first time that the 100% atom-economical tandem Diels-Alder reaction between aminofuranes and maleic anhydride can be carried out successfully in vegetable oils and waxes. The reaction was successfully carried out in sunflower seed oil, olive oil, oleic acid and lauryl myristate under mild reaction conditions. A series of epoxyisoindole-7-carboxylic acid and bisepoxyisoindole-7-carboxylic acids were obtained in good yields after a practical isolation procedure. The results obtained in this study demonstrate the potential of vegetable oils and their renewable materials to provide a reaction medium that is more sustainable than conventional organic solvents in cascade Diels-Alder reactions and can be used repeatedly without significant degradation. These materials also allow the reaction to be completed in less time, with less energy consumption and higher yields.
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Affiliation(s)
- Ayhan Yıldırım
- Department of Chemistry, Bursa Uludağ University, Bursa 16059, Turkey
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Wang H, Chen R, Song D, Sun G, Yu J, Liu Q, Liu J, Zhu J, Liu P, Wang J. Silicone-modified polyurea-interpenetrating polymer network fouling release coatings with excellent wear resistance property tailored to regulations. J Colloid Interface Sci 2024; 653:971-980. [PMID: 37776724 DOI: 10.1016/j.jcis.2023.09.129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 09/09/2023] [Accepted: 09/21/2023] [Indexed: 10/02/2023]
Abstract
The invasion of alien species via marine organisms attaching to the surfaces of ship hulls is a growing problem. A number of countries have introduced corresponding regulations to combat ship biofouling. One effective way to solve this problem is to apply a fouling release coating with excellent wear resistance. In this study, a silicone-modified polyaspartic ester polyurea was synthesized by a simultaneous crosslinking polymerization. Polyaspartic ester polyurea is employed to form a tightly cross-linked network with excellent toughness and outstanding adhesion, while polydimethylsiloxane is used to form a relatively soft cross-linked network with low surface energy and surface elasticity modulus. Polyurea and silicone molecular chain lock onto each other to form interpenetrating polymer network (IPN) through their respective polymerization systems and cross-linking processes. The synergy between silicone and polyurea provides excellent mechanical properties as well as fouling release performance through the locking mechanism. This study provides a promising and universal strategy for the development of fouling release coatings with excellent wear resistance.
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Affiliation(s)
- Hongxia Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Rongrong Chen
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Nanhai Institute of Harbin Engineering University, Hainan 572024, China.
| | - Dalei Song
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Gaohui Sun
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jing Yu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Qi Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Nanhai Institute of Harbin Engineering University, Hainan 572024, China
| | - Jingyuan Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Nanhai Institute of Harbin Engineering University, Hainan 572024, China
| | - Jiahui Zhu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Peili Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Jun Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Nanhai Institute of Harbin Engineering University, Hainan 572024, China
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Lee JH, Kim SH. Shape memory polyurethanes crosslinked with castor oil-based multifunctional polyols. Sci Rep 2023; 13:14983. [PMID: 37696881 PMCID: PMC10495374 DOI: 10.1038/s41598-023-42024-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 09/04/2023] [Indexed: 09/13/2023] Open
Abstract
As both the industry and academia become more focused on biomass-based smart materials, they are attracting a lot of attention. There has been a significant effort in the field of polyurethane (PU) synthesis to replace polyols used in synthesis with bio-derived polyols. Bio-derived polyols have limited application potential for bio-based PU due to their low functionality. Here, we reported castor oil (CO) based multifunctional polyols prepared by grafting thiols such as 1-mercaptoethanol or α-thioglycerol via a facile thiol-ene click reaction method (coded as COM and COT, respectively). Subsequently, bio-based shape memory polyurethanes (SMPU) crosslinked with prepared polyols were synthesized using a 2-step prepolymer method. By confirming the functionality of the synthesized polyols, it was determined that COT has an OH value of 380 mg KOH/g, which is approximately three times that of CO. The successful synthesis of SMPUs was confirmed through chemical structural analysis. It was also proved that the phase separation between the soft and hard segments was limited due to the increase in crosslinking density. As compared to SMPU crosslinked with CO, the mechanical strength of SMPU crosslinked with COT was improved by 80%, while the elongation was decreased by about 26%. As a result of shape memory behavior analysis, it was confirmed that the outstanding SMPU can be synthesized using CO-based multifunctional polyols.
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Affiliation(s)
- Joo Hyung Lee
- The Research Institute of Industrial Science, Hanyang University, Seoul, 04763, South Korea
- Department of Organic and Nano Engineering, Hanyang University, Seoul, 04763, South Korea
| | - Seong Hun Kim
- Department of Organic and Nano Engineering, Hanyang University, Seoul, 04763, South Korea.
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Jašek V, Fučík J, Krhut J, Mravcova L, Figalla S, Přikryl R. A Study of Isosorbide Synthesis from Sorbitol for Material Applications Using Isosorbide Dimethacrylate for Enhancement of Bio-Based Resins. Polymers (Basel) 2023; 15:3640. [PMID: 37688269 PMCID: PMC10490356 DOI: 10.3390/polym15173640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023] Open
Abstract
Bio-based cross-linkers can fulfill the role of enhancing additives in bio-sourced curable materials that do not compare with artificial resin precursors. Isosorbide dimethacrylate (ISDMMA) synthesized from isosorbide (ISD) can serve as a cross-linker from renewable sources. Isosorbide is a bicyclic carbon molecule produced by the reaction modification of sorbitol and the optimal conditions of this reaction were studied in this work. The reaction temperature of 130 °C and 1% w/w amount of para-toluenesulfonic acid (p-TSA) were determined as optimal and resulted in a yield of 81.9%. Isosorbide dimethacrylate was synthesized via nucleophilic substitution with methacrylic anhydride (MAA) with the conversion of 94.1% of anhydride. Formed ISD and ISDMMA were characterized via multiple verification methods (FT-IR, MS, 1H NMR, and XRD). Differential scanning calorimetry (DSC) proved the curability of ISDMMA (activation energy Ea of 146.2 kJ/mol) and the heat-resistant index of ISDMMA (Ts reaching value of 168.9) was determined using thermogravimetric analysis (TGA). Characterized ISDMMA was added to the precursor mixture containing methacrylated alkyl 3-hydroxybutyrates (methyl ester M3HBMMA and ethyl ester E3HBMMA), and the mixtures were cured via photo-initiation. The amount of ISDMMA cross-linker increased all measured parameters obtained via dynamic mechanical analysis (DMA), such as storage modulus (E') and glass transition temperature (Tg), and the calculated cross-linking densities (νe). Therefore, the enhancement influence of bio-based ISDMMA on resins from renewable sources was confirmed.
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Affiliation(s)
- Vojtěch Jašek
- Institute of Materials Chemistry, Faculty of Chemistry, Brno University of Technology, 61200 Brno, Czech Republic; (S.F.); (R.P.)
| | - Jan Fučík
- Institute of Environmental Chemistry, Faculty of Chemistry, Brno University of Technology, 61200 Brno, Czech Republic; (J.F.); (L.M.)
| | - Jiří Krhut
- Institute of Materials Chemistry, Faculty of Chemistry, Brno University of Technology, 61200 Brno, Czech Republic; (S.F.); (R.P.)
| | - Ludmila Mravcova
- Institute of Environmental Chemistry, Faculty of Chemistry, Brno University of Technology, 61200 Brno, Czech Republic; (J.F.); (L.M.)
| | - Silvestr Figalla
- Institute of Materials Chemistry, Faculty of Chemistry, Brno University of Technology, 61200 Brno, Czech Republic; (S.F.); (R.P.)
| | - Radek Přikryl
- Institute of Materials Chemistry, Faculty of Chemistry, Brno University of Technology, 61200 Brno, Czech Republic; (S.F.); (R.P.)
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Salcedo MLD, Omisol CJM, Maputi AO, Estrada DJE, Aguinid BJM, Asequia DMA, Erjeno DJD, Apostol G, Siy H, Malaluan RM, Alguno AC, Dumancas GG, Lubguban AA. Production of Bio-Based Polyol from Coconut Fatty Acid Distillate (CFAD) and Crude Glycerol for Rigid Polyurethane Foam Applications. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5453. [PMID: 37570156 PMCID: PMC10420174 DOI: 10.3390/ma16155453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/28/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023]
Abstract
This study propounds a sustainable alternative to petroleum-based polyurethane (PU) foams, aiming to curtail this nonrenewable resource's continued and uncontrolled use. Coconut fatty acid distillate (CFAD) and crude glycerol (CG), both wastes generated from vegetable oil processes, were utilized for bio-based polyol production for rigid PU foam application. The raw materials were subjected to catalyzed glycerolysis with alkaline-alcohol neutralization and bleaching. The resulting polyol possessed properties suitable for rigid foam application, with an average OH number of 215 mg KOH/g, an acid number of 7.2983 mg KOH/g, and a Gardner color value of 18. The polyol was used to prepare rigid PU foam, and its properties were determined using Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis/derivative thermogravimetric (TGA/DTA), and universal testing machine (UTM). Additionally, the cell foam morphology was investigated by scanning electron microscope (SEM), in which most of its structure revealed an open-celled network and quantified at 92.71% open-cell content using pycnometric testing. The PU foam thermal and mechanical analyses results showed an average compressive strength of 210.43 kPa, a thermal conductivity of 32.10 mW·m-1K-1, and a density of 44.65 kg·m-3. These properties showed its applicability as a type I structural sandwich panel core material, thus demonstrating the potential use of CFAD and CG in commercial polyol and PU foam production.
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Affiliation(s)
- Ma. Louella D. Salcedo
- Center for Sustainable Polymers, MSU-Iligan Institute of Technology, Iligan City 9200, Philippines; (M.L.D.S.); (C.J.M.O.); (A.O.M.); (D.J.E.E.); (B.J.M.A.); (D.M.A.A.); (D.J.D.E.); (R.M.M.); (A.C.A.)
- Materials Science and Engineering Program, Graduate School of Engineering, MSU-Iligan Institute of Technology, Iligan City 9200, Philippines
- Institute of Engineering and Computer Studies, Camiguin Polytechnic State College, Mambajao 9100, Philippines
| | - Christine Joy M. Omisol
- Center for Sustainable Polymers, MSU-Iligan Institute of Technology, Iligan City 9200, Philippines; (M.L.D.S.); (C.J.M.O.); (A.O.M.); (D.J.E.E.); (B.J.M.A.); (D.M.A.A.); (D.J.D.E.); (R.M.M.); (A.C.A.)
| | - Anthony O. Maputi
- Center for Sustainable Polymers, MSU-Iligan Institute of Technology, Iligan City 9200, Philippines; (M.L.D.S.); (C.J.M.O.); (A.O.M.); (D.J.E.E.); (B.J.M.A.); (D.M.A.A.); (D.J.D.E.); (R.M.M.); (A.C.A.)
| | - Dave Joseph E. Estrada
- Center for Sustainable Polymers, MSU-Iligan Institute of Technology, Iligan City 9200, Philippines; (M.L.D.S.); (C.J.M.O.); (A.O.M.); (D.J.E.E.); (B.J.M.A.); (D.M.A.A.); (D.J.D.E.); (R.M.M.); (A.C.A.)
| | - Blessy Joy M. Aguinid
- Center for Sustainable Polymers, MSU-Iligan Institute of Technology, Iligan City 9200, Philippines; (M.L.D.S.); (C.J.M.O.); (A.O.M.); (D.J.E.E.); (B.J.M.A.); (D.M.A.A.); (D.J.D.E.); (R.M.M.); (A.C.A.)
| | - Dan Michael A. Asequia
- Center for Sustainable Polymers, MSU-Iligan Institute of Technology, Iligan City 9200, Philippines; (M.L.D.S.); (C.J.M.O.); (A.O.M.); (D.J.E.E.); (B.J.M.A.); (D.M.A.A.); (D.J.D.E.); (R.M.M.); (A.C.A.)
| | - Daisy Jane D. Erjeno
- Center for Sustainable Polymers, MSU-Iligan Institute of Technology, Iligan City 9200, Philippines; (M.L.D.S.); (C.J.M.O.); (A.O.M.); (D.J.E.E.); (B.J.M.A.); (D.M.A.A.); (D.J.D.E.); (R.M.M.); (A.C.A.)
| | - Glenn Apostol
- Chemrez Technologies, Inc., Quezon City 1110, Philippines; (G.A.); (H.S.)
| | - Henry Siy
- Chemrez Technologies, Inc., Quezon City 1110, Philippines; (G.A.); (H.S.)
| | - Roberto M. Malaluan
- Center for Sustainable Polymers, MSU-Iligan Institute of Technology, Iligan City 9200, Philippines; (M.L.D.S.); (C.J.M.O.); (A.O.M.); (D.J.E.E.); (B.J.M.A.); (D.M.A.A.); (D.J.D.E.); (R.M.M.); (A.C.A.)
- Department of Chemical Engineering and Technology, MSU-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Arnold C. Alguno
- Center for Sustainable Polymers, MSU-Iligan Institute of Technology, Iligan City 9200, Philippines; (M.L.D.S.); (C.J.M.O.); (A.O.M.); (D.J.E.E.); (B.J.M.A.); (D.M.A.A.); (D.J.D.E.); (R.M.M.); (A.C.A.)
- Department of Physics, MSU-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Gerard G. Dumancas
- Department of Chemistry, The University of Scranton, Scranton, PA 18510, USA;
| | - Arnold A. Lubguban
- Center for Sustainable Polymers, MSU-Iligan Institute of Technology, Iligan City 9200, Philippines; (M.L.D.S.); (C.J.M.O.); (A.O.M.); (D.J.E.E.); (B.J.M.A.); (D.M.A.A.); (D.J.D.E.); (R.M.M.); (A.C.A.)
- Department of Chemical Engineering and Technology, MSU-Iligan Institute of Technology, Iligan City 9200, Philippines
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Filippova OV, Maksimkin AV, Dayyoub T, Larionov DI, Telyshev DV. Sustainable Elastomers for Actuators: "Green" Synthetic Approaches and Material Properties. Polymers (Basel) 2023; 15:2755. [PMID: 37376401 DOI: 10.3390/polym15122755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/09/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Elastomeric materials have great application potential in actuator design and soft robot development. The most common elastomers used for these purposes are polyurethanes, silicones, and acrylic elastomers due to their outstanding physical, mechanical, and electrical properties. Currently, these types of polymers are produced by traditional synthetic methods, which may be harmful to the environment and hazardous to human health. The development of new synthetic routes using green chemistry principles is an important step to reduce the ecological footprint and create more sustainable biocompatible materials. Another promising trend is the synthesis of other types of elastomers from renewable bioresources, such as terpenes, lignin, chitin, various bio-oils, etc. The aim of this review is to address existing approaches to the synthesis of elastomers using "green" chemistry methods, compare the properties of sustainable elastomers with the properties of materials produced by traditional methods, and analyze the feasibility of said sustainable elastomers for the development of actuators. Finally, the advantages and challenges of existing "green" methods of elastomer synthesis will be summarized, along with an estimation of future development prospects.
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Affiliation(s)
- Olga V Filippova
- Institute for Bionic Technologies and Engineering, I.M. Sechenov First Moscow State Medical University (Sechenov University), Bolshaya Pirogovskaya Street 2-4, 119991 Moscow, Russia
| | - Aleksey V Maksimkin
- Institute for Bionic Technologies and Engineering, I.M. Sechenov First Moscow State Medical University (Sechenov University), Bolshaya Pirogovskaya Street 2-4, 119991 Moscow, Russia
| | - Tarek Dayyoub
- Institute for Bionic Technologies and Engineering, I.M. Sechenov First Moscow State Medical University (Sechenov University), Bolshaya Pirogovskaya Street 2-4, 119991 Moscow, Russia
- Department of Physical Chemistry, National University of Science and Technology "MISIS", 119049 Moscow, Russia
| | - Dmitry I Larionov
- Institute for Bionic Technologies and Engineering, I.M. Sechenov First Moscow State Medical University (Sechenov University), Bolshaya Pirogovskaya Street 2-4, 119991 Moscow, Russia
| | - Dmitry V Telyshev
- Institute for Bionic Technologies and Engineering, I.M. Sechenov First Moscow State Medical University (Sechenov University), Bolshaya Pirogovskaya Street 2-4, 119991 Moscow, Russia
- Institute of Biomedical Systems, National Research University of Electronic Technology, Zelenograd, 124498 Moscow, Russia
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Jašek V, Fučík J, Melcova V, Figalla S, Mravcova L, Krobot Š, Přikryl R. Synthesis of Bio-Based Thermoset Mixture Composed of Methacrylated Rapeseed Oil and Methacrylated Methyl Lactate: One-Pot Synthesis Using Formed Methacrylic Acid as a Continual Reactant. Polymers (Basel) 2023; 15:polym15081811. [PMID: 37111957 PMCID: PMC10146403 DOI: 10.3390/polym15081811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/28/2023] [Accepted: 03/30/2023] [Indexed: 04/29/2023] Open
Abstract
Methacrylated vegetable oils are promising bio-based polymerizable precursors for potential material application in several fields, such as coating technologies or 3D printing. The reactants' availability for their production is an enormous advantage, but the modified oils also exhibit high apparent viscosity values and poor mechanical properties. This work focuses on a way to produce oil-based polymerizable material precursors in a mixture with a viscosity modifier in a one-batch process. The required methacrylic acid for the modification of epoxidized vegetable oils can be obtained as a secondary product of the methacrylation of methyl lactate forming a polymerizable monomer along with the acid. This reaction results in a yield of over 98% of methacrylic acid. Epoxidized vegetable oil can be added into the same batch using acid for oil modification which results in the one-pot mixture of both methacrylated oil and methyl lactate. The structural verifications of products were provided via FT-IR, 1H NMR, and volumetric methods. This two-step reaction process produces a thermoset mixture with a lower apparent viscosity of 142.6 mPa·s in comparison with methacrylated oil exhibiting a value of 1790.2 mPa·s. Other physical-chemical properties of the resin mixture such as storage modulus (E' = 1260 MPa), glass transition temperature (Tg = 50.0 °C), or polymerization activation energy (17.3 kJ/mol) are enhanced in comparison with the methacrylated vegetable oil. The synthesized one-pot mixture does not require additional methacrylic acid due to the use of the one formed in the first step of the reaction, while the eventual thermoset mixture exhibits enhanced material properties compared to the methacrylated vegetable oil itself. Precursors synthesized in this work may find their purpose in the field of coating technologies, since these applications require detailed viscosity modifications.
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Affiliation(s)
- Vojtěch Jašek
- Institute of Materials Chemistry, Faculty of Chemistry, Brno University of Technology, 61200 Brno, Czech Republic
| | - Jan Fučík
- Institute of Environmental Chemistry, Faculty of Chemistry, Brno University of Technology, 61200 Brno, Czech Republic
| | - Veronika Melcova
- Institute of Materials Chemistry, Faculty of Chemistry, Brno University of Technology, 61200 Brno, Czech Republic
| | - Silvestr Figalla
- Institute of Materials Chemistry, Faculty of Chemistry, Brno University of Technology, 61200 Brno, Czech Republic
| | - Ludmila Mravcova
- Institute of Environmental Chemistry, Faculty of Chemistry, Brno University of Technology, 61200 Brno, Czech Republic
| | - Štěpán Krobot
- Institute of Materials Chemistry, Faculty of Chemistry, Brno University of Technology, 61200 Brno, Czech Republic
| | - Radek Přikryl
- Institute of Materials Chemistry, Faculty of Chemistry, Brno University of Technology, 61200 Brno, Czech Republic
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Acharya SR, Palai AK, Mohanty S. Greener rigid polyurethane nanocomposite foams: investigation of physico-mechanical properties formulated with eco-friendly blowing agents. JOURNAL OF POLYMER RESEARCH 2023. [DOI: 10.1007/s10965-022-03343-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Sunflower Oil as a Renewable Resource for Polyurethane Foams: Effects of Flame-Retardants. Polymers (Basel) 2022; 14:polym14235282. [PMID: 36501676 PMCID: PMC9737309 DOI: 10.3390/polym14235282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 11/22/2022] [Accepted: 12/01/2022] [Indexed: 12/11/2022] Open
Abstract
Currently, polyurethane (PU) manufacturers seek green alternatives for sustainable production. In this work, sunflower oil is studied as a replacement and converted to a reactive form through epoxidation and oxirane opening to produce rigid PU foams. Confirmatory tests such as Fourier-transform infrared spectroscopy (FT-IR), gel permeation chromatography (GPC), and hydroxyl value among others were performed to characterize the synthesized polyol. Despite the versatility of rigid PU foams, they are highly flammable, which makes eco-friendly flame retardants (FRs) desired. Herein, expandable graphite (EG) and dimethyl methyl phosphonate (DMMP), both non-halogenated FR, were incorporated under different concentrations to prepare rigid PU foams. Their effects on the physio-mechanical and fire-quenching properties of the sunflower oil-based PU foams were elucidated. Thermogravimetric and compression analysis showed that these foams presented appreciable compressive strength along with good thermal stability. The closed-cell contents (CCC) were around 90% for the EG-containing foams and suffered a decrease at higher concentrations of DMMP to 72%. The burning test showed a decrease in the foam's flammability as the neat foam had a burning time of 80 s whereas after the addition of 13.6 wt.% of EG and DMMP, separately, there was a decrease to 6 and 2 s, respectively. Hence, our research suggested that EG and DMMP could be a more viable alternative to halogen-based FR for PU foams. Additionally, the adoption of sunflower polyol yielded foams with results comparable to commercial ones.
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12
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Suthar V, Asare MA, de Souza FM, Gupta RK. Effect of Graphene Oxide and Reduced Graphene Oxide on the Properties of Sunflower Oil-Based Polyurethane Films. Polymers (Basel) 2022; 14:polym14224974. [PMID: 36433101 PMCID: PMC9699627 DOI: 10.3390/polym14224974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/12/2022] [Accepted: 11/15/2022] [Indexed: 11/18/2022] Open
Abstract
Sunflower oil was used for the synthesis of a polyol via an epoxidation reaction followed by a ring-opening reaction. The successful synthesis of the sunflower oil-based polyol (SFO polyol) was demonstrated through structural characterizations and wet-chemistry analysis. Bio-based polyurethane (BPU) films were fabricated using synthesized polyol and diisocyanate. Various amounts of graphene oxide (GO) and reduced graphene oxide (rGO) were added separately to see their effect on the physicomechanical and thermal properties of BPU films. Several tests, such as thermogravimetric analysis, tensile strength, dynamic mechanical analysis, hardness, flexural strength, and the water contact angle, were performed to evaluate the effect of GO and rGO on the properties of the BPU films. Some of the analyses of the BPU films demonstrated an improvement in the mechanical properties, for example, the tensile strength increased from 22.5 to 26 MPa with the addition of only 0.05 wt.% GO. The storage modulus improved from 900 to 1000 and 1700 MPa after the addition of 0.02 and 0.05 wt.% GO, respectively. This study shows that a small amount of GO and rGO could improve the properties of BPU films, making them suitable for use in coating industries.
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Affiliation(s)
- Vishwa Suthar
- Department of Chemistry, Pittsburg State University, 1701 S. Broadway Street, Pittsburg, KS 66762, USA
- National Institute for Materials Advancement, Pittsburg State University, 1204 Research Road, Pittsburg, KS 66762, USA
| | - Magdalene A. Asare
- Department of Chemistry, Pittsburg State University, 1701 S. Broadway Street, Pittsburg, KS 66762, USA
- National Institute for Materials Advancement, Pittsburg State University, 1204 Research Road, Pittsburg, KS 66762, USA
| | - Felipe M. de Souza
- National Institute for Materials Advancement, Pittsburg State University, 1204 Research Road, Pittsburg, KS 66762, USA
| | - Ram K. Gupta
- Department of Chemistry, Pittsburg State University, 1701 S. Broadway Street, Pittsburg, KS 66762, USA
- National Institute for Materials Advancement, Pittsburg State University, 1204 Research Road, Pittsburg, KS 66762, USA
- Correspondence:
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13
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Chen F, Gao F, Guo X, Shen L, Lin Y. Tuning the Dynamics of Enamine-One-Based Vitrimers through Substituent Modulation of Secondary Amine Substrates. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Fengbiao Chen
- Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science &Technology Normal University, Nanchang, Jiangxi330013, P. R. China
| | - Fei Gao
- Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science &Technology Normal University, Nanchang, Jiangxi330013, P. R. China
| | - Xinru Guo
- Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science &Technology Normal University, Nanchang, Jiangxi330013, P. R. China
| | - Liang Shen
- Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science &Technology Normal University, Nanchang, Jiangxi330013, P. R. China
| | - Yangju Lin
- Department of Chemical Engineering, Stanford University, Stanford, California94305, United States
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14
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Effect of the biobased polyols chemical structure on high performance thermoset polyurethane properties. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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15
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Xie F, Deng H, Zhang W, Shi H, Wang X, Zhang C. Scalable Production of Self-Toughening Plant Oil-Based Polyurethane Elastomers with Multistimuli-Responsive Functionalities. ACS APPLIED MATERIALS & INTERFACES 2022; 14:50090-50100. [PMID: 36289570 DOI: 10.1021/acsami.2c12535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Plant oils are becoming of high industrial importance due to the persisting challenges befalling with the utilization of fossil fuels. Thus, developing methodologies to produce multifunctional materials by taking advantage of the unique structure of plant oil is highly desired. In this study, castor oil served as a cross-linker and soft segments, by incorporating scalable rhodamine 6G derivatives, to systematically synthesize a series of smart polymers that possess self-toughening and multistimuli-responsive capabilities. The polyurethane elastomers showed 10 times and 60 times increases in tensile strength and toughness, respectively, in comparison with the unmodified polyurethane due to the existence of large amounts of hydrogen bonding, dynamic C-N spiro bonds, rigid benzene ring, and high cross-link densities. The novel polyurethane elastomers exhibited excellent reversible multichromic behaviors in response to light, pH, and mechanics. Notably, the resulting polyurethane elastomers exhibited ultrasensitive sustained photochromism with tunable white emission and rapid reversibility. This study provides a simple and effective strategy to utilize plant oil for multifunctional material preparation and paves the way to open access for application of plant oil-based products in a variety of industry applications, such as sensors, self-fitting tissue scaffolds, and switchable devices.
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Affiliation(s)
- Fei Xie
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou510642, China
| | - Henghui Deng
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou510642, China
| | - Weihao Zhang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou510642, China
| | - Hebo Shi
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou510642, China
| | - Xiaoyu Wang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou510642, China
| | - Chaoqun Zhang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou510642, China
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16
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Yadav A, de Souza FM, Dawsey T, Gupta RK. Recent Advancements in Flame-Retardant Polyurethane Foams: A Review. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Anilkumar Yadav
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, Kansas 66762, United States
| | - Felipe M. de Souza
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, Kansas 66762, United States
| | - Tim Dawsey
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, Kansas 66762, United States
| | - Ram K. Gupta
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, Kansas 66762, United States
- Department of Chemistry, Pittsburg State University, Pittsburg, Kansas 66762, United States
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17
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Wang W, Fan H, Song L, Wang Z, Li H, Xiang J, Huang Q, Chen X. Organosilicon leather coating technology based on carbon peak strategy. JOURNAL OF LEATHER SCIENCE AND ENGINEERING 2022. [DOI: 10.1186/s42825-022-00101-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
AbstractBased on the demand of carbon peak and carbon emission reduction strategy, divinyl-terminated polydimethylsiloxane (ViPDMSVi), poly(methylhydrosiloxane) (PMHS), divinyl-terminated polymethylvinylsiloxane (ViPMVSVi), and fumed silica were used as primary raw materials, polydimethylsiloxane (PDMS) synthetic leather coating was in situ constructed by thermally induced hydrosilylation polymerization on the synthetic leather substrate. The effect of the viscosity of ViPDMSVi, the active hydrogen content of PMHS, the molar ratio of vinyl groups to active hydrogen, the dosage of ViPMVSVi and fumed silica on the performance of PDMS polymer coating, including mechanical properties, cold resistance, flexural resistance, abrasion resistance, hydrophobic and anti-fouling properties were investigated. The results show that ViPDMSVi with high vinyl content and PMHS with low active hydrogen content is more conducive to obtaining organosilicon coating with better mechanical properties, the optimized dosage of ViPMVSVi and fumed silica was 7 wt% and 40 wt%, respectively. In this case, the tensile strength and the broken elongation of the PDMS polymer coating reached 5.96 MPa and 481%, showing reasonable mechanical properties for leather coating. Compared with polyurethane based or polyvinyl chloride based synthetic leather, the silicon based synthetic leather prepared by this method exhibits excellent cold resistance, abrasion resistance, super hydrophobicity, and anti-fouling characteristics.
Graphical Abstract
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18
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Synthesis, Curing Behaviors and Properties of a Bio-Based Trifunctional Epoxy Silicone Modified Epoxy Thermosets. Polymers (Basel) 2022; 14:polym14204391. [PMID: 36297969 PMCID: PMC9609760 DOI: 10.3390/polym14204391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 11/20/2022] Open
Abstract
Tremendous effort has been focused on improving the toughness of epoxy, but the common approaches diminish the mechanical properties. In this work, a new silicone-modified trifunctional epoxy monomer SITEUP is synthesized from the hydrosilylation transformation of eugenol epoxy (EPEU) and tris-(dimethylsiloxy)phenylsilane. The chemical structures and curing kinetics of SITEUP are investigated based on 1H-NMR, 13C-NMR, MADLI-TOF-MS, and DSC analyses. SITEUP is introduced into DGEBA/IPDA systems as a functional modifier in varied loadings for toughening the resulting epoxy thermosets. The impact strength of the modified epoxy thermosets containing 20% SITEUP is 84% higher than that of the pristine epoxy thermoset and also maintains high flexural strength. Further morphology study reveals that the plastic deformation caused by siloxane segments is the key factor accounting for the enhanced toughness of the finalized epoxy thermosets. Si-O-Si segments incorporated into the thermosetting network could absorb more energy by increasing the mobility of polymer chains under external stress and led to improved thermal stability and damping characteristics. In addition, SITEUP is able to decrease the surface tension and increase the hydrophobic properties of the resultant epoxy materials.
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19
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Mohanty S, Borah K, Kashyap SS, Sarmah S, Bera MK, Basak P, Narayan R. Development of hydrophobic polyurethane film from structurally modified castor oil and its anticorrosive performance. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sudhanya Mohanty
- Polymers and Functional Materials Department CSIR‐Indian Institute of Chemical Technology (CSIR‐IICT) Hyderabad India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
| | - Kashmiri Borah
- Polymers and Functional Materials Department CSIR‐Indian Institute of Chemical Technology (CSIR‐IICT) Hyderabad India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
| | - Siddhartha Shankar Kashyap
- Polymers and Functional Materials Department CSIR‐Indian Institute of Chemical Technology (CSIR‐IICT) Hyderabad India
| | - Sanjib Sarmah
- Polymers and Functional Materials Department CSIR‐Indian Institute of Chemical Technology (CSIR‐IICT) Hyderabad India
| | - Manas Kumar Bera
- Polymers and Functional Materials Department CSIR‐Indian Institute of Chemical Technology (CSIR‐IICT) Hyderabad India
| | - Pratyay Basak
- Polymers and Functional Materials Department CSIR‐Indian Institute of Chemical Technology (CSIR‐IICT) Hyderabad India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
| | - Ramanuj Narayan
- Polymers and Functional Materials Department CSIR‐Indian Institute of Chemical Technology (CSIR‐IICT) Hyderabad India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
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20
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Pomilovskis R, Mierina I, Beneš H, Trhlíková O, Abolins A, Fridrihsone A, Kirpluks M. The Synthesis of Bio-Based Michael Donors from Tall Oil Fatty Acids for Polymer Development. Polymers (Basel) 2022; 14:polym14194107. [PMID: 36236055 PMCID: PMC9572469 DOI: 10.3390/polym14194107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/21/2022] [Accepted: 09/27/2022] [Indexed: 11/06/2022] Open
Abstract
In this study, the synthesis of a Michael donor compound from cellulose production by-products—tall oil fatty acids—was developed. The developed Michael donor compounds can be further used to obtain polymeric materials after nucleophilic polymerization through the Michael reaction. It can be a promising alternative method for conventional polyurethane materials, and the Michael addition polymerization reaction takes place under milder conditions than non-isocyanate polyurethane production technology, which requires high pressure, high temperature and a long reaction time. Different polyols, the precursors for Michael donor components, were synthesized from epoxidized tall oil fatty acids by an oxirane ring-opening and esterification reaction with different alcohols (trimethylolpropane and 1,4-butanediol). The addition of functional groups necessary for the Michael reaction was carried out by a transesterification reaction of polyol hydroxyl groups with tert-butyl acetoacetate ester. The following properties of the developed polyols and their acetoacetates were analyzed: hydroxyl value, acid value, moisture content and viscosity. The chemical structure was analyzed using Fourier transform infrared spectroscopy, gel permeation chromatography, size-exclusion chromatography and nuclear magnetic resonance. Matrix-assisted laser desorption/ionization analysis was used for structure identification for this type of acetoacetate for the first time.
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Affiliation(s)
- Ralfs Pomilovskis
- Polymer Laboratory, Latvian State Institute of Wood Chemistry, Dzerbenes St. 27, LV-1006 Riga, Latvia
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena St. 3/7, LV-1048 Riga, Latvia
- Correspondence:
| | - Inese Mierina
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena St. 3/7, LV-1048 Riga, Latvia
| | - Hynek Beneš
- Institute of Macromolecular Chemistry, CAS, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| | - Olga Trhlíková
- Institute of Macromolecular Chemistry, CAS, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic
| | - Arnis Abolins
- Polymer Laboratory, Latvian State Institute of Wood Chemistry, Dzerbenes St. 27, LV-1006 Riga, Latvia
| | - Anda Fridrihsone
- Polymer Laboratory, Latvian State Institute of Wood Chemistry, Dzerbenes St. 27, LV-1006 Riga, Latvia
| | - Mikelis Kirpluks
- Polymer Laboratory, Latvian State Institute of Wood Chemistry, Dzerbenes St. 27, LV-1006 Riga, Latvia
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21
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Bio-Based Polymer Developments from Tall Oil Fatty Acids by Exploiting Michael Addition. Polymers (Basel) 2022; 14:polym14194068. [PMID: 36236017 PMCID: PMC9571392 DOI: 10.3390/polym14194068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/23/2022] [Accepted: 09/24/2022] [Indexed: 01/14/2023] Open
Abstract
In this study, previously developed acetoacetates of two tall-oil-based and two commercial polyols were used to obtain polymers by the Michael reaction. The development of polymer formulations with varying cross-link density was enabled by different bio-based monomers in combination with different acrylates—bisphenol A ethoxylate diacrylate, trimethylolpropane triacrylate, and pentaerythritol tetraacrylate. New polymer materials are based on the same polyols that are suitable for polyurethanes. The new polymers have qualities comparable to polyurethanes and are obtained without the drawbacks that come with polyurethane extractions, such as the use of hazardous isocyanates or reactions under harsh conditions in the case of non-isocyanate polyurethanes. Dynamic mechanical analysis, differential scanning calorimetry, thermal gravimetric analysis, and universal strength testing equipment were used to investigate the physical and thermal characteristics of the created polymers. Polymers with a wide range of thermal and mechanical properties were obtained (glass transition temperature from 21 to 63 °C; tensile modulus (Young’s) from 8 MPa to 2710 MPa and tensile strength from 4 to 52 MPa). The synthesized polymers are thermally stable up to 300 °C. The suggested method may be used to make two-component polymer foams, coatings, resins, and composite matrices.
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22
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Zhang Y, Pan D, Chang C, Liu H, Liu Z. Preparation of a multifunctional flame retardant epoxy resin containing phosphorus and nitrogen and study of its properties. J Appl Polym Sci 2022. [DOI: 10.1002/app.53041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yijun Zhang
- School of Materials Science and Engineering East China University of Science and Technology Shanghai China
| | - Dawei Pan
- School of Materials Science and Engineering East China University of Science and Technology Shanghai China
| | - Changfan Chang
- School of Materials Science and Engineering East China University of Science and Technology Shanghai China
| | - Hua Liu
- Department of Research and Development Sino Polymer Co., Ltd of East China University of Science and Technology Shanghai China
| | - Zuozhen Liu
- School of Materials Science and Engineering East China University of Science and Technology Shanghai China
- Department of Research and Development Sino Polymer Co., Ltd of East China University of Science and Technology Shanghai China
- Shanghai Huayi resin Co., Ltd Shanghai China
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23
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Liang P, Zheng Y, Zhang X, Wei H, Xu X, Yang X, Lin H, Hu C, Zhang X, Lei B, Wong WY, Liu Y, Zhuang J. Carbon Dots in Hydroxy Fluorides: Achieving Multicolor Long-Wavelength Room-Temperature Phosphorescence and Excellent Stability via Crystal Confinement. NANO LETTERS 2022; 22:5127-5136. [PMID: 35700100 DOI: 10.1021/acs.nanolett.2c00603] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Carbon dots (CDs) have aroused widespread interest in the construction of room-temperature phosphorescent (RTP) materials. However, it is a great challenge to obtain simultaneous multicolor long-wavelength RTP emission and excellent stability in CD-based RTP materials. Herein, a novel and universal "CDs-in-YOHF" strategy is proposed to generate multicolor and long-wavelength RTP by confining various CDs in the Y(OH)xF3-x (YOHF) matrix. The mechanism of the triplet emission of CDs is related to the space confinement, the formation of hydrogen bonds and C-F bonds, and the electron-withdrawing fluorine atoms. Remarkably, the RTP lifetime of orange-emissive CDs-o@YOHF is the longest among the reported single-CD-matrix composites for emission above 570 nm. Furthermore, CDs-o@YOHF exhibited higher RTP performance at long wavelength in comparison to CDs-o@matrix (matrix = PVA, PU, urea, silica). The resulting CDs@YOHF shows excellent photostability, thermostability, chemical stability, and temporal stability, which is rather favorable for information security, especially in a complex environment.
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Affiliation(s)
- Ping Liang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, People's Republic of China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, People's Republic of China
| | - Yihao Zheng
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, People's Republic of China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, People's Republic of China
| | - Xingcai Zhang
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
- School of Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Haopeng Wei
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, People's Republic of China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, People's Republic of China
| | - Xiaokai Xu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, People's Republic of China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, People's Republic of China
| | - Xianfeng Yang
- Analytical and Testing Center, South China University of Technology, Guangzhou 510641, People's Republic of China
| | - Huihong Lin
- School of Chemical and Environmental Engineering, Hanshan Normal University, Chaozhou 521041, People's Republic of China
| | - Chaofan Hu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, People's Republic of China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, People's Republic of China
| | - Xuejie Zhang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, People's Republic of China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, People's Republic of China
| | - Bingfu Lei
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, People's Republic of China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, People's Republic of China
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hung Hom, Hong Kong People's Republic of China
- Hong Kong Polytechnic University, Shenzhen Research Institute, Shenzhen 518057, People's Republic of China
| | - Yingliang Liu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, People's Republic of China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, People's Republic of China
| | - Jianle Zhuang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, People's Republic of China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, People's Republic of China
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24
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Chen L, Dai Z, Lou W, Jiang P, Zhang P, Bao Y, Gao X, Xia J. Synthesis of self‐healing soybean oil‐based waterborne polyurethane based on
Diels–Alder
reaction. J Appl Polym Sci 2022. [DOI: 10.1002/app.52694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Liang Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Zhuding Dai
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Wenxue Lou
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Pingping Jiang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Pingbo Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Yanmin Bao
- Research and Development Center Jiangsu Caihua Packaging Group Company Kunshan China
| | - Xuewen Gao
- Research and Development Center Jiangsu Caihua Packaging Group Company Kunshan China
| | - Jialiang Xia
- Research and Development Center Jiangsu Caihua Packaging Group Company Kunshan China
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25
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Wang C, Zhang J, Chen J, Shi J, Zhao Y, He M, Ding L. Bio-polyols based waterborne polyurethane coatings reinforced with chitosan-modified ZnO nanoparticles. Int J Biol Macromol 2022; 208:97-104. [PMID: 35304198 DOI: 10.1016/j.ijbiomac.2022.03.066] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/08/2022] [Accepted: 03/11/2022] [Indexed: 11/05/2022]
Abstract
The development of environmentally friendly waterborne polyurethane (WPU) coatings from bio-based polyols has received much attention due to increasing environmental concern and the depletion of petroleum resources. In this study, the WPU coatings derived from castor oil and soy polyol were modified by chain extender [bis(2-hydroxyethyl)amino]-methyl-phosphonic acid dimethyl ester. The effect of chitosan-modified ZnO (CS-ZnO) nanoparticles content on the properties of WPU/CS-ZnO coatings and their films were systematically investigated. The results indicated that WPU/CS-ZnO coatings displayed excellent storage stability and the particle sizes firstly decreased and then increased with CS-ZnO loading. CS-ZnO could improve tensile strength and Young's modulus but reduce the optical transparency of WPU/CS-ZnO films. CS-ZnO has a prominent reinforcement effect on the WPU/CS-ZnO matrix. With the addition of 2 wt% CS-ZnO, the tensile strength and Young's modulus of the WPU/CS-ZnO2 film reached 13.4 and 112.1 MPa, 1.68 and 2.6 times over neat WPU film, respectively. TGA results showed that the thermal stability of WPU/CS-ZnO films improved with increased CS-ZnO content. Furthermore, the WPU/CS-ZnO films' wettability decreased with the introduction of CS-ZnO. This work provides a simple and efficient strategy for preparing environmentally friendly bio-based WPU coatings, which are promising for application in the surface coating industry.
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Affiliation(s)
- Chengshuang Wang
- School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, P.R. China.
| | - Jie Zhang
- School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, P.R. China; You Pei College, Yancheng Institute of Technology, Yancheng 224051, P.R. China
| | - Jiahao Chen
- School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, P.R. China; School of Mechanical Engineering, Yancheng Institute of Technology, Yancheng 224051, P.R. China
| | - Jingwen Shi
- School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, P.R. China
| | - Yanteng Zhao
- Department of Blood Transfusion, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, P.R. China.
| | - Meng He
- School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, P.R. China
| | - Liang Ding
- School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, P.R. China
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Synthesis of Thermoplastic Polyurethanes Containing Bio-Based Polyester Polyol and Their Fiber Property. Polymers (Basel) 2022; 14:polym14102033. [PMID: 35631915 PMCID: PMC9146802 DOI: 10.3390/polym14102033] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/13/2022] [Accepted: 05/13/2022] [Indexed: 02/04/2023] Open
Abstract
Among the starting materials of thermoplastic polyurethanes (TPUs), it was confirmed that succinic acid-based polyester biopolyols having different molecular weights (Mn = 1000, 2000, and 4000) affect the physicochemical properties of the final polymer significantly. Bio-TPUs synthesized through a solvent-free one-shot polymerization process were synthesized with a polyester polyol, 1,4 butanediol (BDO), and 4,4′-methylene diphenyl diisocyanate (MDI) in a molar ratio of 1:1:2. As a control group, one typical petroleum-based TPU was synthesized and characterized along with other bio-based TPUs. Representative petroleum-based and bio-based TPUs synthesized were manufactured as monofilaments with a diameter of about 0.2 mm through an extrusion process with different draw ratios (4, 5, and 6 times). The molecular weight and structural properties of the TPUs were characterized by GPC and FT-IR analysis and thermal characterization by DSC and TGA analysis. Petroleum-based TPU and bio-based TPU having the same molecular weight soft segment (SS) tended to have similar molecular weight and hard segment (HS) content. TPUs with high HS content had excellent thermal stability, enabling stable extrusion of TPUs. In addition, it was confirmed that the bio-based TPU fibers produced in this way had a tensile strength corresponding to the physical properties of petroleum-based TPU fibers and an excellent elastic recovery rate of almost 100 %. These results indicate the application potential of bio-TPU.
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Environmentally friendly plant‐based waterborne polyurethane for hydrophobic and heat‐resistant films. J Appl Polym Sci 2022. [DOI: 10.1002/app.52437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Tan RYH, Lee CS, Pichika MR, Cheng SF, Lam KY. PH Responsive Polyurethane for the Advancement of Biomedical and Drug Delivery. Polymers (Basel) 2022; 14:polym14091672. [PMID: 35566843 PMCID: PMC9102459 DOI: 10.3390/polym14091672] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/11/2022] [Accepted: 04/17/2022] [Indexed: 02/01/2023] Open
Abstract
Due to the specific physiological pH throughout the human body, pH-responsive polymers have been considered for aiding drug delivery systems. Depending on the surrounding pH conditions, the polymers can undergo swelling or contraction behaviors, and a degradation mechanism can release incorporated substances. Additionally, polyurethane, a highly versatile polymer, has been reported for its biocompatibility properties, in which it demonstrates good biological response and sustainability in biomedical applications. In this review, we focus on summarizing the applications of pH-responsive polyurethane in the biomedical and drug delivery fields in recent years. In recent studies, there have been great developments in pH-responsive polyurethanes used as controlled drug delivery systems for oral administration, intravaginal administration, and targeted drug delivery systems for chemotherapy treatment. Other applications such as surface biomaterials, sensors, and optical imaging probes are also discussed in this review.
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Affiliation(s)
- Rachel Yie Hang Tan
- School of Postgraduate, International Medical University, Kuala Lumpur 57000, Malaysia; (R.Y.H.T.); (K.Y.L.)
| | - Choy Sin Lee
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia;
- Correspondence:
| | - Mallikarjuna Rao Pichika
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia;
- Centre for Bioactive Molecules and Drug Delivery, Institute for Research, Development and Innovation, International Medical University, Kuala Lumpur 57000, Malaysia
| | - Sit Foon Cheng
- Unit of Research on Lipids (URL), Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia;
| | - Ki Yan Lam
- School of Postgraduate, International Medical University, Kuala Lumpur 57000, Malaysia; (R.Y.H.T.); (K.Y.L.)
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Wang XZ, Xie DM, Zhao XL, Li YD, Zeng JB. Sustainable, Malleable, and Recyclable Castor Oil-Derived Poly(urethane urea) Networks with Tunable Mechanical Properties and Shape Memory Performance Based on Dynamic Piperazine–Urea Bonds. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00104] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xiang-Zhao Wang
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Dong-Mei Xie
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xiao-Li Zhao
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yi-Dong Li
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Jian-Bing Zeng
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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Khanlari T, Bayat Y, Bayat M. Preparation of a novel polyurethane network based on PPG–PGN–PPG: investigation of the effect of plasticizers on its properties. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-020-03518-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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31
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Gaddam SK, Arukula R. Renewable soft segment-induced anionic waterborne polyurethane dispersions with enriched bio-content. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02922-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Blasco MPC, Limiñana MÁP, Silvestre CR, Calpena EO, Aís FA. Sustainable Reactive Polyurethane Hot Melt Adhesives Based on Vegetable Polyols for Footwear Industry. Polymers (Basel) 2022; 14:polym14020284. [PMID: 35054690 PMCID: PMC8779523 DOI: 10.3390/polym14020284] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/13/2021] [Accepted: 12/22/2021] [Indexed: 11/16/2022] Open
Abstract
The aim of this work is to develop sustainable reactive polyurethane hot melt adhesives (HMPUR) for footwear applications based on biobased polyols as renewable resources, where ma-croglycol mixtures of polyadipate of 1,4-butanediol, polypropylene and different biobased polyols were employed and further reacted with 4-4'-diphenylmethane diisocyanate. The different reactive polyurethane hot melt adhesives obtained were characterized with different experimental techniques, such as Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), softening temperature and melting viscosity. Finally, their adhesion properties were measured from T-peel tests on leather/HMPUR adhesives/SBR rubber joints in order to establish the viability of the used biobased polyols and the amount of these polyols that could be added to reactive polyurethane hot melt adhesives satisfactorily to meet the quality requirements of footwear joints. All biobased polyols and percentages added to the polyurethane adhesive formulations successfully met the quality requirements of footwear, being comparable to traditional adhesives currently used in footwear joints in terms of final strength. Therefore, these new sustainable polyurethane adhesives can be considered as suitable and sustainable alternatives to the adhesives commonly used in footwear joints.
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Hou C, Liu L, Ren J, Huang M, Yuan E. Structural characterization of two Hericium erinaceus polysaccharides and their protective effects on the alcohol-induced gastric mucosal injury. Food Chem 2021; 375:131896. [PMID: 34954576 DOI: 10.1016/j.foodchem.2021.131896] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/15/2021] [Accepted: 12/16/2021] [Indexed: 01/01/2023]
Abstract
Hericium erinaceus, a traditional edible mushroom, is known as a medicine food homology to ameliorate gastrointestinal diseases. However, the relationship between the structural characteristics of Hericium erinaceus and its stomach-protecting activity remains unclear. Here, the structural properties of two polysaccharides from Hericium erinaceus, mycelium polysaccharide (HMP) and fruiting body polysaccharide (HFP) were investigated by spectral approaches. The results showed that the distribution of HMP was more uniform compared to HFP. Both HMP and HFP have triple helix structures, but the HMP conformation showed greater stability. Subsequently, the preventive effect of HMP and HFP on ethanol-induced gastric mucosal injury was also evaluated in rats and GES-1 cells, and it showed that both HMP and HFP had significant protective activity against gastric mucosal injury, but HMP showed better activity than HFP. These results suggested that conformational stability polysaccharide in Hericium erinaceus is more related to its gastric-protecting activity.
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Affiliation(s)
- Chuanli Hou
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Liangyun Liu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Jiaoyan Ren
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Min Huang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Erdong Yuan
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China.
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Effect of Kraft lignin and palm kernel oil as substitutes of petroleum-based polyols on the properties of viscoelastic polyurethane foams. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02827-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ag immobilized lignin-based PU coating: A promising candidate to promote the mechanical properties, thermal stability, and antibacterial property of paper packaging. Int J Biol Macromol 2021; 189:690-697. [PMID: 34464638 DOI: 10.1016/j.ijbiomac.2021.08.184] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/22/2021] [Accepted: 08/25/2021] [Indexed: 01/13/2023]
Abstract
A lignin-based PU coating was prepared for paper-based green packaging. Two representative diisocyanate were used to prepare the coatings. Due to the rigid aromatic, the physical properties of the TDI system reached the maximum below the lignin content of 40%. The HDI that contains flexible aliphatic chains alleviated the brittleness of coating, and it showed physical advantages when the lignin content was more than 50%. Owing to the high lignin content, the coating presented enhanced thermal stability. After coated with the lignin-based PU coatings, the dry tensile strength of coated paper was improved by 126%. Amazingly, the wet strength was increased from 0.31 to 12.6 MPa with an improvement nearly 40 times. Based on the coordination of lignin, Ag+ was introduced into the PU matrix, which imparted the coating with excellent antibacterial ability. The colony forming units of E. coli and S. aureus were both less than 1. However, no inhibition halo was observed, which indicated that the Ag was firmly anchored on the coating and the antibacterial ability is only available when the bacterial contact the coating surface. The lignin-based PU coating with favorable sustainability and properties shows great potential in paper-based green packaging fields.
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Mudri NH, Abdullah LC, Aung MM, Biak DRA, Tajau R. Structural and Rheological Properties of Nonedible Vegetable Oil-Based Resin. Polymers (Basel) 2021; 13:polym13152490. [PMID: 34372093 PMCID: PMC8347605 DOI: 10.3390/polym13152490] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 07/23/2021] [Accepted: 07/23/2021] [Indexed: 11/22/2022] Open
Abstract
Jatropha oil-based polyol (JOL) was prepared from crude Jatropha oil via an epoxidation and hydroxylation reaction. During the isocyanation step, two different types of diisocyanates; 2,4-toluene diisocyanate (2,4-TDI) and isophorone diisocyanate (IPDI), were introduced to produce Jatropha oil-based polyurethane acrylates (JPUA). The products were named JPUA-TDI and JPUA-IPDI, respectively. The success of the stepwise reactions of the resins was confirmed using 1H nuclear magnetic resonance (NMR) spectroscopy to support the Fourier-transform infrared (FTIR) spectroscopy analysis that was reported in the previous study. For JPUA-TDI, the presence of a signal at 7.94 ppm evidenced the possible side reactions between urethane linkages with secondary amine that resulted in an aryl-urea group (Ar-NH-COO-). Meanwhile, the peak of 2.89 ppm was assigned to the α-position of methylene to the carbamate (-CH2NHCOO) group in the JPUA-IPDI. From the rheological study, JO and JPUA-IPDI in pure form were classified as Newtonian fluids, while JPUA-TDI showed non-Newtonian behaviour with pseudoplastic or shear thinning behaviour at room temperature. At elevated temperatures, the JO, JPUA-IPDI mixture and JPUA-TDI mixture exhibited reductions in viscosity and shear stress as the shear rate increased. The JO and JPUA-IPDI mixture maintained Newtonian fluid behaviour at all temperature ranges. Meanwhile, the JPUA-TDI mixture showed shear thickening at 25 °C and shear thinning at 40 °C, 60 °C and 80 °C. The master curve graph based on the shear rate for the JO, JPUA-TDI mixture and JPUA-IPDI mixture at 25 °C, 40 °C, 60 °C and 80 °C was developed as a fluid behaviour reference for future storage and processing conditions during the encapsulation process. The encapsulation process can be conducted to fabricate a self-healing coating based on a microcapsule triggered either by air or ultra-violet (UV) radiation.
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Affiliation(s)
- Nurul Huda Mudri
- Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
- Radiation Processing Technology Division, Malaysian Nuclear Agency, Kajang 43000, Selangor, Malaysia;
- Correspondence: or (N.H.M.); (L.C.A.); Tel.: +603-8946-6288 (L.C.A.)
| | - Luqman Chuah Abdullah
- Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
- Correspondence: or (N.H.M.); (L.C.A.); Tel.: +603-8946-6288 (L.C.A.)
| | - Min Min Aung
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
- Centre of Foundation Studies for Agricultural Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Dayang Radiah Awang Biak
- Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
- Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43000, Selangor, Malaysia
| | - Rida Tajau
- Radiation Processing Technology Division, Malaysian Nuclear Agency, Kajang 43000, Selangor, Malaysia;
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Platonova E, Chechenov I, Pavlov A, Solodilov V, Afanasyev E, Shapagin A, Polezhaev A. Thermally Remendable Polyurethane Network Cross-Linked via Reversible Diels-Alder Reaction. Polymers (Basel) 2021; 13:1935. [PMID: 34200958 PMCID: PMC8230680 DOI: 10.3390/polym13121935] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/02/2021] [Accepted: 06/06/2021] [Indexed: 11/21/2022] Open
Abstract
We prepared a series of thermally remendable and recyclable polyurethanes crosslinked via reversible furan-maleimide Diels-Alder reaction based on TDI end-caped branched Voranol 3138 terminated with difurfurylamine and 4,4'-bis(maleimido)diphenylmethane (BMI). We showed that Young modulus strongly depends on BMI content (from 8 to 250 MPa) that allows us to obtain materials of different elasticity as simple as varying BMI content. The ability of DA and retro-DA reactions between furan and maleimide to reversibly bind material components was investigated by NMR spectroscopy, differential scanning calorimetry, and recycle testing. All polymers obtained demonstrated high strengths and could be recovering without significant loss in mechanical properties for at least five reprocessing cycles.
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Affiliation(s)
- Elena Platonova
- Laboratory of Functional Composite Materials, Bauman Moscow State Technical University, 2nd Baumanskaya str., 5/1, 105005 Moscow, Russia; (E.P.); (I.C.); (V.S.)
| | - Islam Chechenov
- Laboratory of Functional Composite Materials, Bauman Moscow State Technical University, 2nd Baumanskaya str., 5/1, 105005 Moscow, Russia; (E.P.); (I.C.); (V.S.)
| | - Alexander Pavlov
- Laboratory for Nuclear Magnetic Resonance, A.N. Nesmeyanov Institute of Organoelement Compounds, Vavilova str., 28, 119334 Moscow, Russia;
| | - Vitaliy Solodilov
- Laboratory of Functional Composite Materials, Bauman Moscow State Technical University, 2nd Baumanskaya str., 5/1, 105005 Moscow, Russia; (E.P.); (I.C.); (V.S.)
- Laboratory of Reinforced Plastics, Semenov Institute of Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Egor Afanasyev
- Laboratory for Polymer Materials, A.N. Nesmeyanov Institute of Organoelement Compounds, Vavilova str., 28, 119334 Moscow, Russia;
| | - Alexey Shapagin
- Laboratory of Structural and Morphological Investigations, Frumkin Institute of Physical Chemistry and Electrochemistry, Leninsky Prospect 31, bld.4, 119071 Moscow, Russia;
| | - Alexander Polezhaev
- Laboratory of Functional Composite Materials, Bauman Moscow State Technical University, 2nd Baumanskaya str., 5/1, 105005 Moscow, Russia; (E.P.); (I.C.); (V.S.)
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Ren FY, You F, Gao S, Xie WH, He LN, Li HR. Oligomeric ricinoleic acid synthesis with a recyclable catalyst and application to preparing non-isocyanate polyhydroxyurethane. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110501] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Plant oil-based polymers. PHYSICAL SCIENCES REVIEWS 2021. [DOI: 10.1515/psr-2020-0070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Polymer materials derived from natural resources have gained increasing attention in recent years because of the uncertainties concerning petroleum supply and prices in the future as well as their environmental pollution problems. As one of the most abundant renewable resources, plant oils are suitable starting materials for polymers because of their low cost, the rich chemistry that their triglyceride structure provides, and their potential biodegradability. This chapter covers the structure, modification of triglycerides and their derivatives as well as synthesis of polymers therefrom. The remarkable advances during the last two decades in organic synthesis using plant oils and the basic oleochemicals derived from them are selectively reported and updated. Various methods, such as condensation, radical/cationic polymerization, metathesis procedure, and living polymerization, have also been applied in constructing oil-based polymers. Based on the advance of these changes, traditional polymers such as polyamides, polyesters, and epoxy resins have been renewed. Partial oil-based polymers have already been applied in some industrial areas and recent developments in this field offer promising new opportunities.
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40
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Khanlari T, Bayat Y, Bayat M, Sheibani N. Synthesis, characterization, and curing of propylene oxide and glycidyl nitrate random copolymer (GN-ran-PO) and investigation of its compatibility with different energetic plasticizers. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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41
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Travinskaya ТV, Brykova AN, Babkina NV, Mamunya YP, Shtompel VI, Robota LP, Savelyev YV. Structural peculiarities, thermal and viscoelastic properties of ionomeric polyurethanes based on renewable raw materials. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2021. [DOI: 10.1080/1023666x.2021.1903247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | | | | | - Yevgen P. Mamunya
- Institute of Macromolecular Chemistry, NAS of Ukraine, Kiev, Ukraine
| | | | | | - Yuri V. Savelyev
- Institute of Macromolecular Chemistry, NAS of Ukraine, Kiev, Ukraine
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Cifarelli A, Boggioni L, Vignali A, Tritto I, Bertini F, Losio S. Flexible Polyurethane Foams from Epoxidized Vegetable Oils and a Bio-Based Diisocyanate. Polymers (Basel) 2021; 13:polym13040612. [PMID: 33670627 PMCID: PMC7922077 DOI: 10.3390/polym13040612] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 11/16/2022] Open
Abstract
Bio-polyols from epoxidized soybean and linseed oils and caprylic acid or 3-phenyl butyric acid were prepared using an environmentally friendly, solvent-free method evaluating the presence of triethylamine as catalyst. Side reactions, leading to a cross-linking structure with high density, were reduced, introducing the catalyst and properly tuning the reaction conditions. A medium functionality value of around 3 along with a hydroxyl number up to around 90 mg KOH/g, narrow polydispersity index, and relatively low molecular mass up to 2400 g/mol were the experimental targets. From selected bio-polyols and an aliphatic partially bio-based isocyanate, a series of water blown polyurethane (PU) foams was produced, estimating the effect of the chemical nature of substituents in the polyol backbone on the PU properties. The apparent density of the foams was in the range of 79–113 kg/m3, with higher values for foams from the aromatic acid. Flexible polyurethane foams with open cell structure from bio-based polyols were obtained, with higher cavity size and lower pore sizes for foams from caprylic acid. The bio-based flexible PU foams showed comparable Young’s moduli (14–18 kPa) and compression deflection values (4.6–5.5 kPa) and exhibited an almost complete recovery of their initial size.
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Abstract
Polyurethanes (PUs) are unique polymers that can be tailored to suit certain applications and are increasingly used in many industrial fields. Petrochemicals are still used as the main compound to synthesize PUs. Today, environmental concerns arise in the research and technology innovations in developing PUs, especially from vegetable polyols which are having an upsurge. These are driven by the uncertainty and fluctuations of petroleum crude oil price and availability. Jatropha has become a promising substituent to palm oil so as to reduce the competition of food and nonfood in utilizing this natural resource. Apart from that, jatropha will solve the problem related to the European banning of palm oil. Herein, we review the literature on the synthesis of PUs using different vegetable oils and compare it with jatropha oil and its nanocomposites reinforced with cellulose nanocrystals. Given the potential of vegetable oil PUs in many industrial applications, we expect that they will increase commercial interest and scientific research to bring these materials to the market soon.
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Mehrbakhsh E, Rezaei M, Babaie A, Mohammadi A, Mayan Sofla RL. Physical and thermo-mechanical properties of shape memory polyurethane containing reversible chemical cross-links. J Mech Behav Biomed Mater 2021; 116:104336. [PMID: 33540325 DOI: 10.1016/j.jmbbm.2021.104336] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 02/04/2023]
Abstract
Orthodontic chains are one of the main parts of orthodontic braces. In this study, in order to obtain a suitable polymer for this application as well as troubleshoot the main drawbacks such as stress relaxation and water absorption, thermoplastic polyurethane (TPU) elastomers with various compositions were synthesized and characterized by Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and X-ray diffraction (XRD) analyses. Mechanical properties of samples were evaluated by tensile, elasticity, and stress relaxation tests. According to the required properties for orthodontic chain application, PU2000-311 which contains reversible crosslinks, was selected as the most favorable sample among other pure samples. Moreover, to reduce the water absorption content of PU2000-311, its nanocomposite containing 1 wt% of silica nanoparticles was prepared via solution casting method. As water content angle and field emission scanning electron microscopy (FESEM) images illustrate, incorporation of 1 wt% of modified silica nanoparticles has increased PU2000-311-1S hydrophobicity. In vitro oral environment study showed crystability of samples has recovered great portion of relaxed force. Stress relaxation study indicated samples are applicable in oral temperature range and temperature changes have assisted recovery of relaxed force and reduced treatment period. Finally, shape memory study showed that optimum samples could recover 100% of their original shape.
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Affiliation(s)
- Elaheh Mehrbakhsh
- Institute of Polymeric Materials, Polymer Engineering Department, Sahand University of Technology, Tabriz, Iran
| | - Mostafa Rezaei
- Institute of Polymeric Materials, Polymer Engineering Department, Sahand University of Technology, Tabriz, Iran.
| | - Amin Babaie
- Institute of Polymeric Materials, Polymer Engineering Department, Sahand University of Technology, Tabriz, Iran
| | - Amir Mohammadi
- Department of Orthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Lotfi Mayan Sofla
- Institute of Polymeric Materials, Polymer Engineering Department, Sahand University of Technology, Tabriz, Iran
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Zhao C, Tian H, Zhang Q, Liu Z, Zhang M, Wang J. Preparation of urea-containing starch-castor oil superabsorbent polyurethane coated urea and investigation of controlled nitrogen release. Carbohydr Polym 2021; 253:117240. [PMID: 33278996 DOI: 10.1016/j.carbpol.2020.117240] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/08/2020] [Accepted: 10/11/2020] [Indexed: 02/07/2023]
Abstract
With the aim of improving water absorption and controlled release performance of current controlled release fertilizers, a novel composite coating method for superabsorbent-polyurethane coated urea (SAPCU) was developed. Superabsorbent-polyurethane (SAPU) composite coating material was successfully formed through an insitu reaction, where castor oil polyurethane (COP) and superabsorbent polymer (SAP) were connected through urethane bonds with an optimal reaction ratio of SAP and PAPI as 2.5:1 (w w-1). The ideal nitrogen release and water absorption characteristics of SAPCU were achieved by adjusting the amount of COP and SAPU. The SAPCU had a high total nitrogen content (40.23-42.14 %), large swelling ratios (120-160 g water/g SAPU), and long nitrogen release period (60-150 days).
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Affiliation(s)
- Chenhao Zhao
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Recourses and Environment, Shandong Agricultural University, Taian, 271018, China; College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China; State Key Laboratory of Nutrition Resources Integrated Utilization, Kingenta Ecological Engineering Group Co., Ltd., Linshu, 276700, China
| | - Hongyu Tian
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Recourses and Environment, Shandong Agricultural University, Taian, 271018, China
| | - Qiang Zhang
- State Key Laboratory of Nutrition Resources Integrated Utilization, Kingenta Ecological Engineering Group Co., Ltd., Linshu, 276700, China
| | - Zhiguang Liu
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Recourses and Environment, Shandong Agricultural University, Taian, 271018, China; State Key Laboratory of Nutrition Resources Integrated Utilization, Kingenta Ecological Engineering Group Co., Ltd., Linshu, 276700, China.
| | - Min Zhang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Recourses and Environment, Shandong Agricultural University, Taian, 271018, China; State Key Laboratory of Nutrition Resources Integrated Utilization, Kingenta Ecological Engineering Group Co., Ltd., Linshu, 276700, China.
| | - Jun Wang
- Taian Soil and Water Conservation Ecological Environment Monitoring Station, Taian, 271018, China
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Mansouri M, Ghadimi A, Gharibi R, Norouzbahari S. Gas permeation properties of highly cross-linked castor oil-based polyurethane membranes synthesized through thiol-yne click polymerization. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2020.104799] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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47
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Jiang L, Ren Z, Liu W, Liu H, Zhu C. Synthesis and molecular interaction of tung oil‐based anionic waterborne polyurethane dispersion. J Appl Polym Sci 2020. [DOI: 10.1002/app.49383] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lei Jiang
- School of Materials Science and EngineeringZhengzhou University Zhengzhou People's Republic of China
- High and New Technology Research Center of Henan Academy of Sciences Zhengzhou People's Republic of China
| | - Zhiyong Ren
- High and New Technology Research Center of Henan Academy of Sciences Zhengzhou People's Republic of China
| | - Wentao Liu
- School of Materials Science and EngineeringZhengzhou University Zhengzhou People's Republic of China
| | - Hao Liu
- School of Materials Science and EngineeringZhengzhou University Zhengzhou People's Republic of China
| | - Chengshen Zhu
- School of Materials Science and EngineeringZhengzhou University Zhengzhou People's Republic of China
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Ma X, Chen J, Zhu J, Yan N. Lignin-Based Polyurethane: Recent Advances and Future Perspectives. Macromol Rapid Commun 2020; 42:e2000492. [PMID: 33205584 DOI: 10.1002/marc.202000492] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 09/30/2020] [Indexed: 12/16/2022]
Abstract
Polyurethane (PU), as a polymer material with versatile product forms and excellent performance, is used in coatings, elastomers, adhesives, and foams widely. However, the raw materials (polyols and isocyanates) of PU are usually made using petroleum-derived chemicals. With the concern for depletion of petroleum resources and the associated negative impact on the environment, developing technologies that can use renewable raw materials as feedstock has become a research hotspot. Lignin, as an abundant, natural, and renewable organic carbon resource, has been explored as raw material for making polyurethanes because it possesses rich hydroxyl groups on its surface. Meanwhile, compared to vegetable oils, lignin does not compete with food supply and performance of the resulting products is superior. Lignin or modified lignin has been shown to impart the polyurethane material with additional functionalities, such as UV-blocking ability, hydrophobicity, and flame retardancy. However, the utilization of lignin has encountered some challenges, such as product isolation, heterogeneity, aggregation, steric hindrance, and low activity. This paper summarizes recent research progress on utilizing lignin and modified lignin for bio-based polyurethane synthesis with a focus on elastomers and foams. Opportunities and challenges for application of the lignin-based polyurethanes in various fields are also discussed.
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Affiliation(s)
- Xiaozhen Ma
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jing Chen
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jin Zhu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ning Yan
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, M5S 3B3, Canada
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Lee JH, Kim SH. Fabrication of silane-grafted graphene oxide and its effect on the structural, thermal, mechanical, and hysteretic behavior of polyurethane. Sci Rep 2020; 10:19152. [PMID: 33154454 PMCID: PMC7644711 DOI: 10.1038/s41598-020-76153-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 10/22/2020] [Indexed: 11/24/2022] Open
Abstract
Incorporation of nanofillers into polyurethane (PU) is a promising technique for enhancing its thermal and mechanical properties. Silane grafting has been used as a surface treatment for the functionalization of graphene oxide (GO) with numerous reactive sites dispersed on its basal plane and edge. In this study, amine-grafted GO was prepared using silanization of GO with (3-aminopropyl)triethoxysilane. The functionalized graphene oxide (fGO) was characterized by Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy. Next, it was introduced in PU fabricated using polycaprolactone diol, castor oil, and hexamethylene diisocyanate. The fGO-PU nanocomposites were in turn characterized by FT-IR, X-ray diffraction, scanning electron microscopy, differential scanning calorimetry, thermogravimetric analysis, and a universal testing machine. The results obtained from these analyses showed changes in structural thermal properties, as well as improved thermal stability and mechanical properties because of the strong interfacial adhesion between the fGO and the PU matrix.
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Affiliation(s)
- Joo Hyung Lee
- Department of Organic and Nano Engineering, Hanyang University, Seoul, Republic of Korea
| | - Seong Hun Kim
- Department of Organic and Nano Engineering, Hanyang University, Seoul, Republic of Korea.
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Cousin K, Quienne B, Pinaud J, Caillol S, Monflier E, Hapiot F. One‐Pot Two‐Step Synthesis of Hydroxymethylated Unsaturated VHOSO and Its Application to the Synthesis of Biobased Polyurethanes. EUR J LIPID SCI TECH 2020. [DOI: 10.1002/ejlt.202000158] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kévin Cousin
- University of Artois CNRS Centrale Lille Université de Lille UMR 8181—UCCS—Unité de Catalyse et Chimie du Solide Lens F‐62300 France
| | - Baptiste Quienne
- ICGM Université de Montpellier CNRS ENSCM Montpellier F‐34296 France
| | - Julien Pinaud
- ICGM Université de Montpellier CNRS ENSCM Montpellier F‐34296 France
| | - Sylvain Caillol
- ICGM Université de Montpellier CNRS ENSCM Montpellier F‐34296 France
| | - Eric Monflier
- University of Artois CNRS Centrale Lille Université de Lille UMR 8181—UCCS—Unité de Catalyse et Chimie du Solide Lens F‐62300 France
| | - Frédéric Hapiot
- University of Artois CNRS Centrale Lille Université de Lille UMR 8181—UCCS—Unité de Catalyse et Chimie du Solide Lens F‐62300 France
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