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102
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Zhang Y, Zhou H, Wang L, Jiang W, Soucek MD, Yi Y. Preparation and characterization of castor oil-based waterborne polyurethane crosslinked with 2-amino-2-(hydroxymethyl)-1,3-propanediol. J Appl Polym Sci 2017. [DOI: 10.1002/app.45532] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yanfei Zhang
- School of Chemistry; Chemical Engineering and Life Sciences, Wuhan University of Technology; Wuhan 430070 China
| | - Hongwei Zhou
- Chinese Institute of Marine & Offshore Engineering HB. CO., Ltd.; Wuhan 430070 China
| | - Li Wang
- School of Chemistry; Chemical Engineering and Life Sciences, Wuhan University of Technology; Wuhan 430070 China
| | - Wenyuan Jiang
- School of Chemistry; Chemical Engineering and Life Sciences, Wuhan University of Technology; Wuhan 430070 China
| | - Mark D. Soucek
- Polymer Engineering Department; University of Akron; Akron Ohio 44325
| | - Ying Yi
- School of Chemistry; Chemical Engineering and Life Sciences, Wuhan University of Technology; Wuhan 430070 China
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103
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Theodoratou A, Bonnet L, Dieudonné P, Massiera G, Etienne P, Robin JJ, Lapinte V, Chopineau J, Oberdisse J, Aubert-Pouëssel A. Vegetable oil hybrid films cross-linked at the air-water interface: formation kinetics and physical characterization. SOFT MATTER 2017; 13:4569-4579. [PMID: 28613327 DOI: 10.1039/c7sm00596b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Vegetable oil based hybrid films were developed thanks to a novel solvent- and heating-free method at the air-water interface using silylated castor oil cross-linked via a sol-gel reaction. To understand the mechanism of the hybrid film formation, the reaction kinetics was studied in detail by using complementary techniques: rheology, thermogravimetric analysis, and infrared spectroscopy. The mechanical properties of the final films were investigated using nano-indentation, whereas their structure was studied using a combination of wide-angle X-ray scattering, electron diffraction, and atomic force microscopy. We found that solid and transparent films form in 24 hours and, by changing the silica precursor to castor oil ratio, their mechanical properties are tunable in the MPa-range by about a factor of twenty. In addition to that, a possible optimization of the cross-linking reaction with different catalysts was explored, and finally cytotoxicity tests were performed on fibroblasts proving the absence of film toxicity. The results of this work pave the way to a straightforward synthesis of castor-oil films with tunable mechanical properties: hybrid films cross-linked at the air-water interface combine an easy and cheap spreading protocol with the features of their thermal history optimized for possible future micro/nano drug loading, thus representing excellent candidates for the replacement of non-environmentally friendly petroleum-based materials.
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Affiliation(s)
- Antigoni Theodoratou
- Institut Charles Gerhardt Montpellier (ICGM), UMR5253 CNRS-UM-ENSCM, place Eugène Bataillon, 34090 Montpellier, France.
| | - Laurent Bonnet
- Laboratoire Charles Coulomb (L2C), UMR5221 CNRS-UM F34095, Montpellier, France
| | - Philippe Dieudonné
- Laboratoire Charles Coulomb (L2C), UMR5221 CNRS-UM F34095, Montpellier, France
| | - Gladys Massiera
- Laboratoire Charles Coulomb (L2C), UMR5221 CNRS-UM F34095, Montpellier, France
| | - Pascal Etienne
- Laboratoire Charles Coulomb (L2C), UMR5221 CNRS-UM F34095, Montpellier, France
| | - Jean-Jacques Robin
- Institut Charles Gerhardt Montpellier (ICGM), UMR5253 CNRS-UM-ENSCM, place Eugène Bataillon, 34090 Montpellier, France.
| | - Vincent Lapinte
- Institut Charles Gerhardt Montpellier (ICGM), UMR5253 CNRS-UM-ENSCM, place Eugène Bataillon, 34090 Montpellier, France.
| | - Joël Chopineau
- Institut Charles Gerhardt Montpellier (ICGM), UMR5253 CNRS-UM-ENSCM, place Eugène Bataillon, 34090 Montpellier, France. and Université de Nîmes, rue Georges Salan, 30000 Nîmes, France
| | - Julian Oberdisse
- Laboratoire Charles Coulomb (L2C), UMR5221 CNRS-UM F34095, Montpellier, France
| | - Anne Aubert-Pouëssel
- Institut Charles Gerhardt Montpellier (ICGM), UMR5253 CNRS-UM-ENSCM, place Eugène Bataillon, 34090 Montpellier, France.
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104
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Gurunathan T, Chung JS. Synthesis of aminosilane crosslinked cationomeric waterborne polyurethane nanocomposites and its physicochemical properties. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.02.061] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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105
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106
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Liu C, Long Y, Xie J, Xie X. Towards green polyurethane foams via renewable castor oil-derived polyol and carbon dioxide releasing blowing agents from alkylated polyethylenimines. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.03.079] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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107
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Babanejad N, Farhadian A, Omrani I, Nabid MR. Design, characterization and in vitro evaluation of novel amphiphilic block sunflower oil-based polyol nanocarrier as a potential delivery system: Raloxifene-hydrochloride as a model. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:59-68. [PMID: 28576026 DOI: 10.1016/j.msec.2017.03.235] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Revised: 01/08/2017] [Accepted: 03/25/2017] [Indexed: 01/09/2023]
Abstract
Presently, modern pharmaceuticals, are almost exclusively derived from the arduous refining of petroleum whose supply is inherently unsustainable. In order to address this issue bio-based materials are increasingly being used for chemical synthesis, particularly in drug delivery systems. Biodegradable and biocompatible hyper-branched polyol (an alcohol containing three or more hydroxyl groups) was synthesized via a facile method through the ring-opening and thiol-ene click reactions at room temperature. Due to the bio-based content of the polyol backbone, the synthesized polyol had both excellent biodegradability and low cytotoxicity. Raloxifene hydrochloride, an oral selective estrogen receptor modulator, was used as a hydrophobic drug model to test the potential of polyol as a drug delivery system carrier. Polyol showed an amphiphilic character and could be prepared as a nanoparticle for the sustained delivery of raloxifene hydrochloride, a drug with poor bioavailability in aqueous solution. Raloxifene hydrochloride was readily encapsulated in the lipophilic core of polyol whose branched hydroxyls were on the external part of the prepared nanoparticles. The diameter of the nanoparticles was 94±0.43nm, their drug entrapment efficiency was 93±0.5% and they showed a sustained release profile (17±1.5% after 4weeks). The 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) assay showed low toxicity towards human osteoblast MG-63 cells. Based on its good biodegradability and low cytotoxicity, polyol provides a bio-based source for the design new drug delivery systems.
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Affiliation(s)
- Niloofar Babanejad
- Department of Polymer, Faculty of Chemistry, Shahid Beheshti University, G.C, 1983963113, Tehran, Iran
| | - Abdolreza Farhadian
- Department of Polymer, Faculty of Chemistry, Shahid Beheshti University, G.C, 1983963113, Tehran, Iran
| | - Ismail Omrani
- Department of Polymer, Faculty of Chemistry, Shahid Beheshti University, G.C, 1983963113, Tehran, Iran
| | - Mohammad Reza Nabid
- Department of Polymer, Faculty of Chemistry, Shahid Beheshti University, G.C, 1983963113, Tehran, Iran.
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108
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Mucci VL, Ivdre A, Buffa JM, Cabulis U, Stefani PM, Aranguren MI. Composites made from a soybean oil biopolyurethane and cellulose nanocrystals. POLYM ENG SCI 2017. [DOI: 10.1002/pen.24539] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Veronica L. Mucci
- Division Ecomateriales Instituto de Investigación en Ciencia y Tecnología de Materiales (INTEMA), UNMDP, CONICET, Facultad de Ingeniería; Mar del Plata 7600 Argentina
| | - Aiga Ivdre
- Polymer Laboratory; Latvian State Institute of Wood Chemistry; Riga LV-1006 Latvia
| | - Juan M. Buffa
- Division Ecomateriales Instituto de Investigación en Ciencia y Tecnología de Materiales (INTEMA), UNMDP, CONICET, Facultad de Ingeniería; Mar del Plata 7600 Argentina
| | - Ugis Cabulis
- Polymer Laboratory; Latvian State Institute of Wood Chemistry; Riga LV-1006 Latvia
| | - Pablo M. Stefani
- Division Ecomateriales Instituto de Investigación en Ciencia y Tecnología de Materiales (INTEMA), UNMDP, CONICET, Facultad de Ingeniería; Mar del Plata 7600 Argentina
| | - Mirta I. Aranguren
- Division Ecomateriales Instituto de Investigación en Ciencia y Tecnología de Materiales (INTEMA), UNMDP, CONICET, Facultad de Ingeniería; Mar del Plata 7600 Argentina
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109
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Synthesis and properties of non-isocyanate aliphatic crystallizable thermoplastic poly(ether urethane) elastomers. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.08.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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110
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Milchert E, Malarczyk-Matusiak K, Musik M. Technological aspects of vegetable oils epoxidation in the presence of ion exchange resins: a review. POLISH JOURNAL OF CHEMICAL TECHNOLOGY 2016. [DOI: 10.1515/pjct-2016-0059] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A review paper of the technology basics of vegetable oils epoxidation by means of peracetic or performic acid in the presence of acidic ion exchange resins has been presented. The influence of the following parameters: temperature, molar ratio of acetic acid and hydrogen peroxide to ethylenic unsaturation, catalyst loading, stirring intensity and the reaction time on a conversion of ethylenic unsaturation, the relative percentage conversion to oxirane and the iodine number was discussed. Optimal technological parameters, mechanism of epoxidation by carboxylic peracids and the possibilities of catalyst recycling have been also discussed. This review paper shows the application of epoxidized oils.
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Affiliation(s)
- Eugeniusz Milchert
- West Pomeranian University of Technology, Szczecin, Institute of Organic Chemical Technology, K. Pulaskiego 10, 70-322 Szczecin, Poland
| | - Kornelia Malarczyk-Matusiak
- West Pomeranian University of Technology, Szczecin, Institute of Organic Chemical Technology, K. Pulaskiego 10, 70-322 Szczecin, Poland
| | - Marlena Musik
- West Pomeranian University of Technology, Szczecin, Institute of Organic Chemical Technology, K. Pulaskiego 10, 70-322 Szczecin, Poland
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111
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Comí M, Lligadas G, Ronda JC, Galià M, Cádiz V. Synthesis of castor-oil based polyurethanes bearing alkene/alkyne groups and subsequent thiol-ene/yne post-modification. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.09.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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112
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Li S, Kong Y, Wang X, Zhang G, Long S, Yang J. The influence of processing aids on the melt stability and mobility of poly(arylene sulfide sulfone). HIGH PERFORM POLYM 2016. [DOI: 10.1177/0954008315597740] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The phosphorous antioxidant bis[2,4-bis(1-methyl-1-phenylethyl)phenyl] pentaerythritol diphosphite (s-9228), hindered phenol antioxidant N, N′-hexane-1,6-diylbis-[3,5-di-tert-butyl-4-hydroxyphenylpropionamide] (1098), and zinc acetate (ZnAc) were chosen as processing aids to improve the melt stability and mobility of poly(arylene sulfide sulfone) (PASS). Different contents and components of the processing aids were discussed. The capillary rheometer test demonstrated that 3 wt% ZnAc showed better effect with the change of the shear rates. In contrast, the parallel-plate rheometer test proved that the complex antioxidant, including 0.8 wt% s-9228 and 1.6 wt% 1098, showed better effect with the change of temperature. Both the capillary rheometer and parallel-plate rheometer test showed that the compounding aid consisting of 0.8 wt% s-9228, 1.6 wt% 1098, and 3 wt% ZnAc showed the best effect with the dramatically improved melt stability and mobility. Also, PASS could be processed successfully by extruding and through an injection machine with the help of the compounding aid. Meanwhile, the effects of the applied processing aids on melt complex viscosity and modulus were also discussed.
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Affiliation(s)
- Suying Li
- College of Polymer Science and Engineering, Sichuan University, Chengdu, China
| | - Yu Kong
- College of Polymer Science and Engineering, Sichuan University, Chengdu, China
| | - Xiaojun Wang
- Institute of Materials Science and Technology, Sichuan University, Chengdu, China
| | - Gang Zhang
- Institute of Materials Science and Technology, Sichuan University, Chengdu, China
| | - Shengru Long
- Institute of Materials Science and Technology, Sichuan University, Chengdu, China
| | - Jie Yang
- Institute of Materials Science and Technology, Sichuan University, Chengdu, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, China
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113
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Synthesis of novel high primary hydroxyl functionality polyol from sunflower oil using thiol-yne reaction and their application in polyurethane coating. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.07.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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114
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Sharma C, Edatholath SS, Raman Unni A, Umasankar Patro T, Aswal VK, Rath SK, Harikrishnan G. A pre-polyaddition mediation of castor oil for polyurethane formation. J Appl Polym Sci 2016. [DOI: 10.1002/app.43964] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chandan Sharma
- Department of Chemical Engineering; Indian Institute of Technology Kharagpur; Kharagpur West Bengal 721302 India
| | - Saji S. Edatholath
- Department of Chemical Engineering; Indian Institute of Technology Kharagpur; Kharagpur West Bengal 721302 India
| | - A. Raman Unni
- Automotive and Flexible Foam Division; Huntsman Polyurethanes; Navi Mumbai Maharashtra 400710 India
| | - T. Umasankar Patro
- Department of Materials Engineering; Defence Institute of Advanced Technology; Pune Maharashtra 411025 India
| | - Vinod K. Aswal
- Solid State Physics Division; Bhabha Atomic Research Centre; Mumbai Maharashtra 400085 India
| | - Sangram K. Rath
- Polymer Division; Naval Materials Research Laboratory; Ambernath Maharashtra 421506 India
| | - G. Harikrishnan
- Department of Chemical Engineering; Indian Institute of Technology Kharagpur; Kharagpur West Bengal 721302 India
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115
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High performance bio-based polyurethane elastomers: Effect of different soft and hard segments. CHINESE JOURNAL OF POLYMER SCIENCE 2016. [DOI: 10.1007/s10118-016-1811-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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116
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Alagi P, Choi YJ, Hong SC. Preparation of vegetable oil-based polyols with controlled hydroxyl functionalities for thermoplastic polyurethane. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.03.003] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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117
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Das R, Banerjee SL, Kumar R, Kundu P. Development of sustainable elastomeric engineering nanocomposites from linseed oil with improved mechanical stability and thermally induced shape memory properties. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2016.01.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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118
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Girouard NM, Xu S, Schueneman GT, Shofner ML, Meredith JC. Site-Selective Modification of Cellulose Nanocrystals with Isophorone Diisocyanate and Formation of Polyurethane-CNC Composites. ACS APPLIED MATERIALS & INTERFACES 2016; 8:1458-1467. [PMID: 26713564 DOI: 10.1021/acsami.5b10723] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The unequal reactivity of the two isocyanate groups in an isophorone diisocyante (IPDI) monomer was exploited to yield modified cellulose nanocrystals (CNCs) with both urethane and isocyanate functionality. The chemical functionality of the modified CNCs was verified with ATR-FTIR analysis and elemental analysis. The selectivity for the secondary isocyanate group using dibutyl tin dilaurate (DBTDL) as the reaction catalyst was confirmed with (13)C NMR. The modified CNCs showed improvements in the onset of thermal degradation by 35 °C compared to the unmodified CNCs. Polyurethane composites based on IPDI and a trifunctional polyether alcohol were synthesized using unmodified (um-CNC) and modified CNCs (m-CNC). The degree of nanoparticle dispersion was qualitatively assessed with polarized optical microscopy. It was found that the modification step facilitated superior nanoparticle dispersion compared to the um-CNCs, which resulted in increases in the tensile strength and work of fracture of over 200% compared to the neat matrix without degradation of elongation at break.
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Affiliation(s)
| | - Shanhong Xu
- National Institute of Standards and Technology , Gaithersburg, Maryland, United States
| | - Gregory T Schueneman
- Forest Products Laboratory, U.S. Forest Service , Madison, Wisconsin, United States
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119
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Shi S, Wu QY, Gu L, Zhang K, Yu H. Bio-based (co)polylactide-urethane networks with shape memory behavior at body temperature. RSC Adv 2016. [DOI: 10.1039/c6ra14488h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The novel bio-based polymer networks with shape memory behavior were synthesized from polylactide-based tetraols and hexamethylene diisocyanate trimer.
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Affiliation(s)
- Shuo Shi
- Faculty of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo 315211
- P. R. China
- Key Laboratory of Marine Materials and Related Technologies
| | - Qing-Yun Wu
- Faculty of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo 315211
- P. R. China
| | - Lin Gu
- Key Laboratory of Marine Materials and Related Technologies
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Kunyu Zhang
- Division of Biomedical Engineering
- Department of Mechanical and Automation Engineering
- The Chinese University of Hong Kong
- Hong Kong
- P. R. China
| | - Haibin Yu
- Key Laboratory of Marine Materials and Related Technologies
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
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120
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Behera PK, Usha KM, Guchhait PK, Jehnichen D, Das A, Voit B, Singha NK. A novel ionomeric polyurethane elastomer based on ionic liquid as crosslinker. RSC Adv 2016. [DOI: 10.1039/c6ra21650a] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
A novel flexible polyurethane was prepared using ionic liquid as crosslinker. It showed lower Tg, superelastomeric behavior with very high elongation, better tensile and oil resistance properties than a non-ionic crosslinked PU or a linear PU.
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Affiliation(s)
| | - K. M. Usha
- Vikram Sarabhai Space Centre (ISRO)
- Thiruvananthapuram
- India
| | - P. K. Guchhait
- Vikram Sarabhai Space Centre (ISRO)
- Thiruvananthapuram
- India
| | - Dieter Jehnichen
- Leibniz-Institute of Polymer Research Dresden
- 01069 Dresden
- Germany
| | - Amit Das
- Leibniz-Institute of Polymer Research Dresden
- 01069 Dresden
- Germany
| | - Brigitte Voit
- Leibniz-Institute of Polymer Research Dresden
- 01069 Dresden
- Germany
| | - Nikhil K. Singha
- Rubber Technology Centre
- Indian Institute of Technology
- Kharagpur 721302
- India
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121
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Bio-Based Polyols from Seed Oils for Water-Blown Rigid Polyurethane Foam Preparation. INT J POLYM SCI 2016. [DOI: 10.1155/2016/4909857] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The preparation of water-blown rigid polyurethane (RPUR) foams using bio-based polyols from sesame seed oil and pumpkin seed oil has been reported. Polyols synthesis involved two steps, namely, hydroxylation and alcoholysis reaction. FTIR, NMR, and ESI-MS were used to monitor the process of the synthesized polyols and their physicochemical properties were determined. The resulting polyols have OH number in the range of 340–351 mg KOH/g. RPUR foams blown with water were produced from the reaction of biopolyols with commercial polymeric methylene diphenyl diisocyanate (PMDI). The proper PUR formulations can be manipulated to produce the desired material applications. These seed oil-based RPUR foams exhibited relatively high compressive strength (237.7–240.2 kPa) with the density in the range of 40–45 kg/m3. Additionally, the cell foam morphology investigated by scanning electron microscope indicated that their cellular structure presented mostly polygonal closed cells. The experimental results demonstrate that these bio-based polyols can be used as an alternative starting material for RPUR production.
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122
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Mou Z, Feng S(K, Chen EYX. Bio-based difuranic polyol monomers and their derived linear and cross-linked polyurethanes. Polym Chem 2016. [DOI: 10.1039/c5py02032h] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Starting from the biomass platform chemical 5-hydroxymethylfurfural (HMF), diol, triol and tetraol difuranic monomers were synthesized, which were utilized in the polyaddition step-growth polymerization with various diisocyanates to produce bio-based linear or cross-linked polyurethanes.
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Affiliation(s)
- Zehuai Mou
- Department of Chemistry
- Colorado State University
- Fort Collins
- USA
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123
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Gu L, Cui B, Wu QY, Yu H. Bio-based polyurethanes with shape memory behavior at body temperature: effect of different chain extenders. RSC Adv 2016. [DOI: 10.1039/c5ra26308e] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The chain extenders are used to adjust the transition temperatures and shape memory properties of bio-based shape memory polyurethanes.
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Affiliation(s)
- Lin Gu
- Key Laboratory of Marine Materials and Related Technologies
- Key Laboratory of Marine Materials and Protective Technologies of Zhejiang Province
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
| | - Bin Cui
- Key Laboratory of Marine Materials and Related Technologies
- Key Laboratory of Marine Materials and Protective Technologies of Zhejiang Province
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
| | - Qing-Yun Wu
- Department of Polymer Science and Engineering
- Faculty of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo 315211
- P. R. China
| | - Haibin Yu
- Key Laboratory of Marine Materials and Related Technologies
- Key Laboratory of Marine Materials and Protective Technologies of Zhejiang Province
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
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124
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Dudhedia MS, Agrawal AM. Rheological study of copovidone and solid dispersion blend used for hot melt extrusion. J Appl Polym Sci 2015. [DOI: 10.1002/app.43278] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mayur S. Dudhedia
- Department of Pharmaceutical Development; Boehringer Ingelheim Pharmaceuticals, Inc; Ridgefield Connecticut 06877
| | - Anjali M. Agrawal
- Department of Pharmaceutical Development; Boehringer Ingelheim Pharmaceuticals, Inc; Ridgefield Connecticut 06877
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125
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Synthesis and properties of non-isocyanate thermoplastic polyurethanes containing dibutylene terephthalate units. JOURNAL OF POLYMER RESEARCH 2015. [DOI: 10.1007/s10965-015-0893-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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126
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127
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Silicone modified epoxy resins with good toughness, damping properties and high thermal residual weight. JOURNAL OF POLYMER RESEARCH 2015. [DOI: 10.1007/s10965-015-0852-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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128
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Balakrishnan T, Sathiyanarayanan S, Mayavan S. Advanced Anticorrosion Coating Materials Derived from Sunflower Oil with Bifunctional Properties. ACS APPLIED MATERIALS & INTERFACES 2015; 7:19781-19788. [PMID: 26292971 DOI: 10.1021/acsami.5b05789] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
High-performance barrier films preventing permeation of moisture, aggressive chloride ions, and corrosive acids are important for many industries ranging from food to aviation. In the current study, pristine sunflower oil was used to form uniform adherent films on iron (Fe) via a simple single-step thermal treatment (without involving any initiator/mediator/catalyst). Oxidation of oil on heating results in a highly conjugated (oxidized) crystalline lamellar network with interlayer separation of 0.445 nm on Fe. The electrochemical corrosion tests proved that the coating exhibits superior anticorrosion performance with high coating resistance (>10(9) ohm cm2) and low capacitance values (<10(-10) F cm(-2)) as compared to bare Fe, graphene, and conducting polymer based coatings in 1 M hydrochloric acid solutions. The electrochemical analyses reveal that the oil coatings developed in this study provided a two-fold protection of passivation from the oxide layer and barrier from polymeric films. It is clearly observed that there is no change in structure, morphology, or electrochemical properties even after a prolonged exposure time of 80 days. This work indicates the prospect of developing highly inert, environmentally green, nontoxic, and micrometer level passivating barrier coatings from more sustainable and renewable sources, which can be of interest for numerous applications.
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Affiliation(s)
- Thiruparasakthi Balakrishnan
- Corrosion and Material Protection Division, CSIR-Central Electrochemical Research Institute , Karaikudi 630 006, Tamil Nadu, India
| | - Sadagopan Sathiyanarayanan
- Corrosion and Material Protection Division, CSIR-Central Electrochemical Research Institute , Karaikudi 630 006, Tamil Nadu, India
| | - Sundar Mayavan
- Corrosion and Material Protection Division, CSIR-Central Electrochemical Research Institute , Karaikudi 630 006, Tamil Nadu, India
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Feula A, Pethybridge A, Giannakopoulos I, Tang X, Chippindale A, Siviour CR, Buckley CP, Hamley IW, Hayes W. A Thermoreversible Supramolecular Polyurethane with Excellent Healing Ability at 45 °C. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01162] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Antonio Feula
- Department
of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | | | | | - Xuegang Tang
- Department
of Engineering Science, Oxford University, Parks Road, Oxford OX1 3PJ, U.K
| | - Ann Chippindale
- Department
of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Clive R. Siviour
- Department
of Engineering Science, Oxford University, Parks Road, Oxford OX1 3PJ, U.K
| | - C. Paul Buckley
- Department
of Engineering Science, Oxford University, Parks Road, Oxford OX1 3PJ, U.K
| | - Ian W. Hamley
- Department
of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Wayne Hayes
- Department
of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
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