151
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Abstract
This review critically addresses the most relevant and innovative techniques for obtaining polymers from tannins.
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Affiliation(s)
- Myleidi Vera
- Department of Polymer
- Faculty of Chemistry Science
- University of Concepción
- Concepción
- Chile
| | - Bruno F. Urbano
- Department of Polymer
- Faculty of Chemistry Science
- University of Concepción
- Concepción
- Chile
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152
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Gosecki M, Gosecka M, Urbaniak M. Oxidative esterification of aliphatic α,ω-diols, an alternative route to polyester precursors for the synthesis of polyurethanes. Polym Chem 2021. [DOI: 10.1039/d1py01265g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aliphatic α,ω-diols are converted into polyester polyols in water in the presence of in situ generated BrOH. The extent of the reaction is controlled by the BrOH to hydroxymethyl group molar ratio.
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Affiliation(s)
- Mateusz Gosecki
- Centre of Molecular and Macromolecular Studies of the Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Monika Gosecka
- Centre of Molecular and Macromolecular Studies of the Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Malgorzata Urbaniak
- Centre of Molecular and Macromolecular Studies of the Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
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153
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Shi J, Zheng T, Zhang Y, Guo B, Xu J. Cross-linked polyurethane with dynamic phenol-carbamate bonds: properties affected by the chemical structure of isocyanate. Polym Chem 2021. [DOI: 10.1039/d1py00157d] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Based on the phenol–carbamate dynamic bond, we designed a strategy to regulate the rearrangement kinetics of the dynamic covalent network in polyurethanes by adjusting the chemical structure of aliphatic isocyanates.
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Affiliation(s)
- Jiaxin Shi
- Advanced Materials Laboratory of Ministry of Education (MOE)
- Department of Chemical Engineering
- Tsinghua University
- Beijing
- China
| | - Tianze Zheng
- Advanced Materials Laboratory of Ministry of Education (MOE)
- Department of Chemical Engineering
- Tsinghua University
- Beijing
- China
| | - Yao Zhang
- Advanced Materials Laboratory of Ministry of Education (MOE)
- Department of Chemical Engineering
- Tsinghua University
- Beijing
- China
| | - Baohua Guo
- Advanced Materials Laboratory of Ministry of Education (MOE)
- Department of Chemical Engineering
- Tsinghua University
- Beijing
- China
| | - Jun Xu
- Advanced Materials Laboratory of Ministry of Education (MOE)
- Department of Chemical Engineering
- Tsinghua University
- Beijing
- China
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154
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Amado JCQ, Ross PG, Sanches NB, Pinto JRA, Dutra JCN. Evaluation of elastomeric heat shielding materials as insulators for solid propellant rocket motors: A short review. OPEN CHEM 2020. [DOI: 10.1515/chem-2020-0182] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThis review addresses a comparison, based on the literature, among nitrile rubber (NBR), ethylene-propylene-diene-monomer rubber (EPDM), and polyurethane (PU) elastomeric heat shielding materials (EHSM). Currently, these are utilized for the insulation of rocket engines to prevent catastrophic breakdown if combustion gases from propellant reaches the motor case. The objective of this review is to evaluate the performance of PU–EHSM, NBR–EHSM, and EPDM–EHSM as insulators, the latter being the current state of the art in solid rocket motor (SRM) internal insulation. From our review, PU–EHSM emerged as an alternative to EPDM–EHSM because of their easier processability and compatibility with composite propellant. With the appropriate reinforcement and concentration in the rubber, they could replace EPDM in certain applications such as rocket motors filled with composite propellant. A critical assessment and future trends are included. Rubber composites novelties as EHSM employs specialty fillers, such as carbon nanotubes, graphene, polyhedral oligosilsesquioxane (POSS), nanofibers, nanoparticles, and high-performance engineering polymers such as polyetherimide and polyphosphazenes.
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Affiliation(s)
- Javier Carlos Quagliano Amado
- Applied Chemistry Department, Institute for Scientific and Technical Research for the Defense (CITEDEF), Ave. JB de La Salle 4397 B1603ALO, Buenos Aires, Argentina
| | - Pablo Germán Ross
- Applied Chemistry Department, Institute for Scientific and Technical Research for the Defense (CITEDEF), Ave. JB de La Salle 4397 B1603ALO, Buenos Aires, Argentina
| | - Natália Beck Sanches
- Coordenação de cursos, Universidade Guarulhos (UNG), R. Eng. Prestes Maia, 88 – Centro, CEP 07023-070, Guarulhos, SP, Brazil
| | - Juliano Ribeiro Aguiar Pinto
- Instituto de Aeronáutica e Espaço (IAE), Divisão de Produção de Motores (APM), Estrada municipal LúciaMarcondes, km 4,5, Varadouro, 12315-020, Jacareí, SP, Brazil
| | - Jorge Carlos Narciso Dutra
- Departamento de Química, Instituto Tecnológico de Aeronáutica (ITA), Praça Marechal Eduardo Gomes, 50, Vila das Acácias, CEP 12228-900, São José dos Campos, SP, Brazil
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155
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Bil M, Hipś I, Mrówka P, Święszkowski W. Studies on enzymatic degradation of multifunctional composite consisting of chitosan microspheres and shape memory polyurethane matrix. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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156
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Durability of PS-Polyurethane Dedicated for Composite Strengthening Applications in Masonry and Concrete Structures. Polymers (Basel) 2020; 12:polym12122830. [PMID: 33260747 PMCID: PMC7760741 DOI: 10.3390/polym12122830] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 11/30/2022] Open
Abstract
Polyurethane flexible joints (PUFJ) and fiber reinforced polyurethanes (FRPU) have shown great potential in the repair and protection of masonry and concrete structures. However, some questions have been raised about the durability of such solutions. The accelerated weathering and thermal stability tests carried out so far have shown the mechanical stability of PS-polyurethane in temperatures up to 100 °C and some UV-induced surface degradation. The paper reports the results from tensile tests of PS-polyurethane, used in the technologies mentioned above after being subjected to aging in different corrosive factors, a thermal analysis of unaged polymer which consists of DSC-TGA and dilatometry studies, and SEM-microscopy observation of the specimens with the indication of the elemental composition (EDS). PS-polyurethane showed low sensitivity to weathering with exposition to UV-radiation, some reactiveness to aqueous environments of a different chemical nature, and resistivity to soil and freezing in both air and water. SEM observations indicated changes in the composition of mineral fillers as the main effect of immersion in different water solutions. DSC-TGA studies showed the thermal stability of PS-polyurethane up to 200 °C and degradation proceeding in five stages. Dilatometry studies revealed that the first-degree thermal degradation over 200 °C causes a serious loss of mechanical properties.
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157
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Mondal T, Charles L, Lutz J. Damage and Repair in Informational Poly(
N
‐substituted urethane)s. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008864] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tathagata Mondal
- Precision Macromolecular Chemistry Université de Strasbourg CNRS Institut Charles Sadron UPR22 23 rue du Loess 67034 Strasbourg Cedex 2 France
| | - Laurence Charles
- Aix Marseille Université CNRS UMR 7273, Institut of Radical Chemistry 13397 Marseille Cedex 20 France
| | - Jean‐François Lutz
- Precision Macromolecular Chemistry Université de Strasbourg CNRS Institut Charles Sadron UPR22 23 rue du Loess 67034 Strasbourg Cedex 2 France
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158
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Mondal T, Charles L, Lutz JF. Damage and Repair in Informational Poly(N-substituted urethane)s. Angew Chem Int Ed Engl 2020; 59:20390-20393. [PMID: 32779792 DOI: 10.1002/anie.202008864] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/23/2020] [Indexed: 11/07/2022]
Abstract
The degradation and repair of uniform sequence-defined poly(N-substituted urethane)s was studied. Polymers containing an ω-OH end-group and only ethyl carbamate main-chain repeat units rapidly degrade in NaOH solution through an ω→α depolymerization mechanism with no apparent sign of random chain cleavage. The degradation mechanism is not notably affected by the nature of the side-chain N-substituents and took place for all studied sequences. On the other hand, depolymerization is significantly influenced by the molecular structure of the main-chain repeat units. For instance, hexyl carbamate main-chain motifs block unzipping and can therefore be used to control the degradation of specific sequence sections. Interestingly, the partially degraded polymers can also be repaired; for example by using a combination of N,N'-disuccinimidyl carbonate with a secondary amine building-block. Overall, these findings open up interesting new avenues for chain-healing and sequence editing.
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Affiliation(s)
- Tathagata Mondal
- Precision Macromolecular Chemistry, Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, 23 rue du Loess, 67034, Strasbourg Cedex 2, France
| | - Laurence Charles
- Aix Marseille Université, CNRS, UMR 7273, Institut of Radical Chemistry, 13397, Marseille Cedex 20, France
| | - Jean-François Lutz
- Precision Macromolecular Chemistry, Université de Strasbourg, CNRS, Institut Charles Sadron UPR22, 23 rue du Loess, 67034, Strasbourg Cedex 2, France
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159
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Kang SS, Choi K, Nam JD, Choi HJ. Magnetorheological Elastomers: Fabrication, Characteristics, and Applications. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4597. [PMID: 33076562 PMCID: PMC7602820 DOI: 10.3390/ma13204597] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/07/2020] [Accepted: 10/13/2020] [Indexed: 01/12/2023]
Abstract
Magnetorheological (MR) elastomers become one of the most powerful smart and advanced materials that can be tuned reversibly, finely, and quickly in terms of their mechanical and viscoelastic properties by an input magnetic field. They are composite materials in which magnetizable particles are dispersed in solid base elastomers. Their distinctive behaviors are relying on the type and size of dispersed magnetic particles, the type of elastomer matrix, and the type of non-magnetic fillers such as plasticizer, carbon black, and crosslink agent. With these controllable characteristics, they can be applied to various applications such as vibration absorber, isolator, magnetoresistor, and electromagnetic wave absorption. This review provides a summary of the fabrication, properties, and applications of MR elastomers made of various elastomeric materials.
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Affiliation(s)
- Sung Soon Kang
- Department of Polymer Science and Engineering, Inha University, Incheon 22212, Korea;
| | - Kisuk Choi
- Department of Polymer Science and Engineering, School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea; (K.C.); (J.-D.N.)
| | - Jae-Do Nam
- Department of Polymer Science and Engineering, School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea; (K.C.); (J.-D.N.)
| | - Hyoung Jin Choi
- Department of Polymer Science and Engineering, Inha University, Incheon 22212, Korea;
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160
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Dai Z, Jiang P, Lou W, Zhang P, Bao Y, Gao X, Xia J, Haryono A. Preparation of degradable vegetable oil-based waterborne polyurethane with tunable mechanical and thermal properties. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109994] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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161
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Zhang J, Hori N, Takemura A. Influence of NCO/OH ratio on preparation of four agricultural wastes liquefied polyols based polyurethane foams. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109256] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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162
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Liu SM, Yu L, Gao JX, Zhang XD. Durability of rubber waterstop in extreme environment: effect and mechanisms of ultraviolet aging. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-020-03275-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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163
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Rahman MM. Polyurethane/Zinc Oxide (PU/ZnO) Composite-Synthesis, Protective Propertyand Application. Polymers (Basel) 2020; 12:polym12071535. [PMID: 32664589 PMCID: PMC7407999 DOI: 10.3390/polym12071535] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 07/09/2020] [Indexed: 02/07/2023] Open
Abstract
A polyurethane (PU) is a multifunctional polymer prepared by using more than two types of monomers. The unique properties of PU come from monomers, thus broadening the applicability of PU in many different sectors. The properties can be further improved by using many nanoparticles. Different metal oxides as nanoparticles are also widely used in PU materials. ZnO is a widely used inorganic metal oxide nanoparticle for improving polymer properties. In this review article, the techniques to prepare a PU/ZnO composite are reviewed; the key protective properties, such as adhesive strength and self-healing, and applications of PU/ZnO composites are also highlighted. This review also highlights the PU/ZnO composite's current challenges and future prospects, which will help to broaden the composite practical application by preparing environmentally friendly composites.
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Affiliation(s)
- Mohammad Mizanur Rahman
- Center of Research Excellence in Corrosion, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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164
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Xu Z, Cui Y, Li T, Dang H, Li J, Cheng F. Enhanced Mechanical and Shape Memory Properties of Poly(propylene glycol)‐Based Star‐Shaped Polyurethane. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000082] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhaozan Xu
- Shanxi Collaborative Innovation Center of High Value‐added Utilization of Coal‐related WastesInstitute of Resources and Environmental EngineeringShanxi University Taiyuan 030006 China
| | - Yangli Cui
- Shanxi Collaborative Innovation Center of High Value‐added Utilization of Coal‐related WastesInstitute of Resources and Environmental EngineeringShanxi University Taiyuan 030006 China
| | - Tingting Li
- Department of Materials EngineeringTaiyuan Institute of Technology Taiyuan 030008 China
| | - Haichun Dang
- Department of Materials EngineeringTaiyuan Institute of Technology Taiyuan 030008 China
| | - Jianfeng Li
- Shanxi Collaborative Innovation Center of High Value‐added Utilization of Coal‐related WastesInstitute of Resources and Environmental EngineeringShanxi University Taiyuan 030006 China
| | - Fangqin Cheng
- Shanxi Collaborative Innovation Center of High Value‐added Utilization of Coal‐related WastesInstitute of Resources and Environmental EngineeringShanxi University Taiyuan 030006 China
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165
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Hadavand BS, Jouyandeh M, Paran SMR, Khalili R, Vahabi H, Bafghi HF, Laoutid F, Vijayan PP, Saeb MR. Silane‐functionalized
Al
2
O
3
‐modified polyurethane powder coatings: Nonisothermal degradation kinetics and mechanistic insights. J Appl Polym Sci 2020. [DOI: 10.1002/app.49412] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Maryam Jouyandeh
- Université de Lorraine, CentraleSupélec, LMOPS, F‐57000 Metz France
- Laboratoire Matériaux Optiques, Photoniques et Systèmes, CentraleSupélecUniversité Paris‐Saclay Metz France
| | | | - Reza Khalili
- Université de Lorraine, CentraleSupélec, LMOPS, F‐57000 Metz France
- Laboratoire Matériaux Optiques, Photoniques et Systèmes, CentraleSupélecUniversité Paris‐Saclay Metz France
| | - Henri Vahabi
- Université de Lorraine, CentraleSupélec, LMOPS, F‐57000 Metz France
- Laboratoire Matériaux Optiques, Photoniques et Systèmes, CentraleSupélecUniversité Paris‐Saclay Metz France
| | | | - Fouad Laoutid
- Laboratory of Polymeric & Composite MaterialsMateria Nova Research Center Mons Belgium
| | | | - Mohammad Reza Saeb
- Department of Resin and AdditivesInstitute for Color Science and Technology Tehran Iran
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166
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167
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Vahabi H, Rastin H, Movahedifar E, Antoun K, Brosse N, Saeb MR. Flame Retardancy of Bio-Based Polyurethanes: Opportunities and Challenges. Polymers (Basel) 2020; 12:E1234. [PMID: 32485825 PMCID: PMC7361950 DOI: 10.3390/polym12061234] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/24/2020] [Accepted: 05/26/2020] [Indexed: 01/14/2023] Open
Abstract
Sustainable polymers are emerging fast and have received much more attention in recent years compared to petro-sourced polymers. However, they inherently have low-quality properties, such as poor mechanical properties, and inadequate performance, such as high flammability. In general, two methods have been considered to tackle such drawbacks: (i) reinforcement of sustainable polymers with additives; and (ii) modification of chemical structure by architectural manipulation so as to modify polymers for advanced applications. Development and management of bio-based polyurethanes with flame-retardant properties have been at the core of attention in recent years. Bio-based polyurethanes are currently prepared from renewable, bio-based sources such as vegetable oils. They are used in a wide range of applications including coatings and foams. However, they are highly flammable, and their further development is dependent on their flame retardancy. The aim of the present review is to investigate recent advances in the development of flame-retardant bio-based polyurethanes. Chemical structures of bio-based flame-retardant polyurethanes have been studied and explained from the point of view of flame retardancy. Moreover, various strategies for improving the flame retardancy of bio-based polyurethanes as well as reactive and additive flame-retardant solutions are discussed.
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Affiliation(s)
- Henri Vahabi
- Université de Lorraine, CentraleSupélec, LMOPS, F-57000 Metz, France
| | - Hadi Rastin
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran 1417466191, Iran;
| | - Elnaz Movahedifar
- Department of Polymer Engineering, Amirkabir University of Technology-Mahshahr Campus, Mahshahr 424, Iran;
| | - Karina Antoun
- Université de Lorraine, INRAE, LERMAB, F-54000 Nancy, France; (K.A.); (N.B.)
| | - Nicolas Brosse
- Université de Lorraine, INRAE, LERMAB, F-54000 Nancy, France; (K.A.); (N.B.)
| | - Mohammad Reza Saeb
- Department of Resin and Additives, Institute for Color Science and Technology, Tehran 16765-654, Iran
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168
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Zhang Z, Tian R, Zhang P, Lu C, Duan X. Three-Dimensional Visualization for Early-Stage Evolution of Polymer Aging. ACS CENTRAL SCIENCE 2020; 6:771-778. [PMID: 32490193 PMCID: PMC7256940 DOI: 10.1021/acscentsci.0c00133] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Indexed: 06/11/2023]
Abstract
Monitoring the evolution of polymer aging, especially early-stage aging, over both time and dimensionality can provide in-depth insight into aging-induced material invalidation and even disastrous accidents. However, it remains a great challenge because currently available methods for polymer aging only provide statistic results at a macroscopic scale. Herein, we report the first three-dimensional early-stage visualization (ESV) technique of polymer aging by using the fluorophore-bonded boronic acid to specifically target aging-induced hydroxyl groups through the B-O click reaction. This method can identify the initial aging of polypropylene (PP) as early as 20.0 min. In contrast, no signals can be detected by conventional infrared spectroscopy even after 21 days of thermal treatment. More importantly, the three-dimensional evolution for early-stage polymer aging was demonstrated: faster aggression in the horizontal plane (4.1 × 10-4 s-1) than in the vertical direction (2.6 × 10-9 m s-1) for PP films. The approach could undoubtedly provide valuable information in elucidating mechanistic details of polymer aging in three-dimensional scale and assessing the utility of advanced antiaging materials.
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Affiliation(s)
- Zekun Zhang
- State Key Laboratory of Chemical
Resource Engineering, Beijing University
of Chemical Technology, Beijing 100029, China
| | - Rui Tian
- State Key Laboratory of Chemical
Resource Engineering, Beijing University
of Chemical Technology, Beijing 100029, China
| | - Pudun Zhang
- State Key Laboratory of Chemical
Resource Engineering, Beijing University
of Chemical Technology, Beijing 100029, China
| | - Chao Lu
- State Key Laboratory of Chemical
Resource Engineering, Beijing University
of Chemical Technology, Beijing 100029, China
| | - Xue Duan
- State Key Laboratory of Chemical
Resource Engineering, Beijing University
of Chemical Technology, Beijing 100029, China
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169
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Shah S, Rangaraj N, Laxmikeshav K, Sampathi S. “Nanogels as drug carriers – Introduction, chemical aspects, release mechanisms and potential applications”. Int J Pharm 2020; 581:119268. [DOI: 10.1016/j.ijpharm.2020.119268] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/12/2020] [Accepted: 03/24/2020] [Indexed: 12/28/2022]
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170
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Preparation, Characterization of Propargyl Terminal Polybutadiene and Its Crosslinked Elastomers Properties. Polymers (Basel) 2020; 12:polym12040748. [PMID: 32235424 PMCID: PMC7240571 DOI: 10.3390/polym12040748] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 03/17/2020] [Accepted: 03/25/2020] [Indexed: 11/25/2022] Open
Abstract
Propargyl terminal Polybutadiene (PTPB) was successfully prepared through hydroxyl terminal polybutadiene (HTPB) end-capping modification. The FTIR and 13C NMR results indicated that the HTPB terminal hydroxyl was thoroughly replaced and yielded the target product, PTPB, with a theoretical propargyl content of 0.66 mmol g−1. In comparison with HTPB, PTPB has a lower viscosity. Using 1,6-diazide hexane as a curing agent, polytriazole crosslinked polybutadiene (PTriPB) elastomers with various functional molar ratios (R) were prepared by CuAAC reaction, and the glass transition temperatures of the resultant PTriPB elastomers were approximately −75 °C, measured by differential scanning calorimetry (DSC), nearly independent of elastomer R values. Mechanical tests indicated, that with the increase in R, the mechanical properties of PTriPB elastomers exhibit a parabolic dependence on R. In addition, the thermal stability of PTriPB elastomers were also studied. The findings revealed some fundamental features of polytriazole crosslinking elastomer prepared by CuAAC reaction.
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171
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Miao Y, He H, Li Z. Strain hardening behaviors and mechanisms of polyurethane under various strain rate loading. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25364] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yinggang Miao
- State Key Laboratory for Strength and Vibration of Mechanical Structures, Department of Engineering MechanicsSchool of Aerospace Engineering, Xi'an Jiaotong University Xi'an Shaanxi China
| | - He He
- Joint International Research Laboratory of Impact Dynamics and its Engineering Applications, School of Aeronautics, Northwestern Polytechnical University Xi'an Shaanxi China
- Shaanxi Key Laboratory of Impact Dynamics and its Engineering ApplicationSchool of Aeronautics, Northwestern Polytechnical University Xi'an Shaanxi China
| | - Zhihui Li
- School of Mechanical Engineering, Baoji University of Arts and Sciences Baoji Shaanxi China
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172
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Wang L, Wang C, Wu S, Fan Y, Li X. Influence of the mechanical properties of biomaterials on degradability, cell behaviors and signaling pathways: current progress and challenges. Biomater Sci 2020; 8:2714-2733. [DOI: 10.1039/d0bm00269k] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We have clarified the influence of the mechanical properties of biomaterials on degradability and cell response, and also mechanical design targets and approaches.
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Affiliation(s)
- Lu Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Cunyang Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Shuai Wu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
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173
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174
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Yang W, Guan D, Liu J, Luo Y, Wang Y. Synthesis and characterization of biodegradable linear shape memory polyurethanes with high mechanical performance by incorporating novel long chain diisocyanates. NEW J CHEM 2020. [DOI: 10.1039/c9nj06017k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Novel long chain diisocyanates were developed for synthesis of biodegradable linear shape memory polyurethanes demonstrating high mechanical performance.
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Affiliation(s)
- Wei Yang
- Lab for Smart & Bioinspired Materials
- College of Bioengineering
- Chongqing University
- Chongqing 400030
- China
| | - Di Guan
- Lab for Smart & Bioinspired Materials
- College of Bioengineering
- Chongqing University
- Chongqing 400030
- China
| | - Juan Liu
- Lab for Smart & Bioinspired Materials
- College of Bioengineering
- Chongqing University
- Chongqing 400030
- China
| | - Yanfeng Luo
- Lab for Smart & Bioinspired Materials
- College of Bioengineering
- Chongqing University
- Chongqing 400030
- China
| | - Yuanliang Wang
- Lab for Smart & Bioinspired Materials
- College of Bioengineering
- Chongqing University
- Chongqing 400030
- China
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175
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Preparation of Polyurethane Monolithic Resins and Modification with a Condensed Tannin-Yielding Self-Healing Property. Polymers (Basel) 2019; 11:polym11111890. [PMID: 31731736 PMCID: PMC6918299 DOI: 10.3390/polym11111890] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/06/2019] [Accepted: 11/13/2019] [Indexed: 11/17/2022] Open
Abstract
Resins of polyurethane were prepared from vegetable oils (crambe and castor) and modified by adding green corrosion inhibitor (condensed tannin). The oils were characterized by gas chromatography with flame-ionization detection (GC-FID), attenuated total reflectance Fourier transform infrared spectroscopy (FTIR-ATR) and thermogravimetric analysis (TGA). The reaction was monitored by characterizing the intermediate products (polyester and prepolymer). The polyester was characterized by solubility in methanol, acidity index, hydroxyl groups and FTIR-ATR, and the prepolymer was characterized by solid content, solvent content, isocyanate (NCO) groups and FTIR-ATR. The formation of PU resins was confirmed by FTIR-ATR and TGA, and the presence of tannin particles incorporated in the coating can be observed by optical microscopy (OM). The absence of the band attributed to NCO in FTIR-ATR spectra of the resins confirmed the complete reaction between polyester and prepolymer. The OM observation and a video demonstrate that Polyurethane (PU)-modified with condensed tannin resin presents self-healing effect, probably through the formation of new hydrogen bonds when in contact with deionized water. Therefore, these results open possibilities for new synthetic routes aiming at improving the very important self-healing property for protecting metals and their alloys against corrosion, extending significantly the metallic materials lifetime as previously demonstrated by our group.
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176
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Lin Y, He D, Hu H, Yi P, Liu X, Huang J, Wu S, Li G. Preparation and Properties of Polydimethylsiloxane (PDMS)/Polyethylene Glycol (PEG)-Based Amphiphilic Polyurethane Elastomers. ACS APPLIED BIO MATERIALS 2019; 2:4377-4384. [DOI: 10.1021/acsabm.9b00605] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yinlei Lin
- School of Materials Science and Energy Engineering, Foshan University, No. 18 Jiangwan First Road, Changcheng District, Foshan, Guangdong 528000, China
- School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou, Guangdong 510640, China
| | - Deliu He
- School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou, Guangdong 510640, China
| | - Huawen Hu
- School of Materials Science and Energy Engineering, Foshan University, No. 18 Jiangwan First Road, Changcheng District, Foshan, Guangdong 528000, China
| | - Peng Yi
- School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou, Guangdong 510640, China
| | - Xiaoting Liu
- School of Materials Science and Energy Engineering, Foshan University, No. 18 Jiangwan First Road, Changcheng District, Foshan, Guangdong 528000, China
| | - Jianhui Huang
- School of Materials Science and Energy Engineering, Foshan University, No. 18 Jiangwan First Road, Changcheng District, Foshan, Guangdong 528000, China
| | - Shaozhen Wu
- School of Materials Science and Energy Engineering, Foshan University, No. 18 Jiangwan First Road, Changcheng District, Foshan, Guangdong 528000, China
| | - Guangji Li
- School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou, Guangdong 510640, China
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177
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Using water to control electrospun Polycaprolactone fibre morphology for soft tissue engineering. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1890-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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178
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Lei W, Zhou X, Fang C, Li Y, Song Y, Wang C, Huang Z. New approach to recycle office waste paper: Reinforcement for polyurethane with nano cellulose crystals extracted from waste paper. WASTE MANAGEMENT (NEW YORK, N.Y.) 2019; 95:59-69. [PMID: 31351645 DOI: 10.1016/j.wasman.2019.06.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 05/29/2019] [Accepted: 06/01/2019] [Indexed: 06/10/2023]
Abstract
New approach to recycle office waste paper was purposed in this paper, i.e., cellulose nanocrystal (CNC) was extracted from waste paper and then used CNC as the organic filler to reinforce polyurethane elastomer (PUE) in thermal properties. A series of CNC/PUE nanocomposites was prepared in situ using a two-step process in solvent N,N-dimethylformamide solution by changing the content of CNC from 0.5, 1, 2, 3, 4 to 5 wt%. The results showed that CNC was covalently bonded to PUE, and specifically concerned with the hard segments of PUE resulting from the strong hydrogen bonding. The interactions between CNC and PUE caused the increased thermal and thermo-mechanical properties, and decreased water absorption of nanocomposites. Importantly, the initial degradation temperature of PUE with 2 wt% content CNC (CNC/PUE2) increased by 21 °C. CNC/PUE2 had the better comprehensive properties with the worse water absorption, which made CNC/PUE2 appealing in load bearing and outdoor applications. Hence, this work not only provided a new recycling method of waste paper but also provided a thermolstable PUE with lower cost.
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Affiliation(s)
- Wanqing Lei
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, PR China; Faculty of Printing, Packing Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, PR China
| | - Xing Zhou
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, PR China; Faculty of Printing, Packing Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, PR China
| | - Changqing Fang
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, PR China; Faculty of Printing, Packing Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, PR China.
| | - Yaguang Li
- Faculty of Printing, Packing Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, PR China
| | - Yonghua Song
- Faculty of Printing, Packing Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, PR China
| | - Chenxi Wang
- Faculty of Printing, Packing Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an 710048, PR China
| | - Zhigang Huang
- Key Laboratory of Hygiene and Safety Quality Evaluation Technology of Plastic, Beijing Technology and Business University, Beijing 100048, PR China.
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179
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Wang Y, Wu H, Wang Z, Zhang J, Zhu J, Ma Y, Yang Z, Yuan Y. Optimized Synthesis of Biodegradable Elastomer PEGylated Poly(glycerol sebacate) and Their Biomedical Application. Polymers (Basel) 2019; 11:E965. [PMID: 31163580 PMCID: PMC6630889 DOI: 10.3390/polym11060965] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 05/26/2019] [Accepted: 05/27/2019] [Indexed: 02/06/2023] Open
Abstract
Poly(glycerol sebacate) (PGS), a biodegradable elastomer, has been extensively explored in biomedical applications for its favorable mechanical properties and biocompatibility. Efforts have been made to fabricate multifunctional PGS copolymer in recent years, in particular PGS-co-PEG (poly(glycerol sebacate)-co-polyethylene glycol) polymers. However, rare research has been systematically conducted on the effect of reactant ratios on physicochemical properties and biocompatibility of PGS copolymer till now. In this study, a serial of PEGylated PGS (PEGS) with PEG content from 20% to 40% and carboxyl to hydroxyl from 0.67 to 2 were synthesized by thermal curing process. The effects of various PEGS on the mechanical strength and biological activity were further compared and optimized. The results showed that the PEGS elastomers around 20PEGS-1.0C/H and 40PEGS-1.5C/H exhibited the desirable hydrophilicity, degradation behaviors, mechanical properties and cell viability. Subsequently, the potential applications of the 20PEGS-1.0C/H and 40PEGS-1.5C/H in bone repair scaffold and vascular reconstruction were investigated and the results showed that 20PEGS-1.0C/H and 40PEGS-1.5C/H could significantly improve the mechanical strength for the calcium phosphate scaffolds and exhibited preferable molding capability for fabrication of the vascular substitute. These results confirmed that the optimized PEGS elastomers should be promising multifunctional substrates in biomedical applications.
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Affiliation(s)
- Yanxiang Wang
- Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
| | - Haiwa Wu
- Department of Pathology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA.
| | - Zihao Wang
- Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
| | - Jingjing Zhang
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.
| | - Jing Zhu
- Department of Pharmaceutics, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA.
| | - Yifan Ma
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.
| | - Zhaogang Yang
- Department of Radiation Oncology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
| | - Yuan Yuan
- Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
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180
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Wang L, Wu S, Cao G, Fan Y, Dunne N, Li X. Biomechanical studies on biomaterial degradation and co-cultured cells: mechanisms, potential applications, challenges and prospects. J Mater Chem B 2019; 7:7439-7459. [DOI: 10.1039/c9tb01539f] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review provides a comprehensive overview of biomechanical studies on biomaterial degradation and co-cultured cells as well as valuable biomechanical ideas on how to design or optimize cell biomaterial co-culture system.
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Affiliation(s)
- Lu Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Shuai Wu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Guangxiu Cao
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Nicholas Dunne
- Centre for Medical Engineering Research
- School of Mechanical and Manufacturing Engineering
- Dublin City University
- Dublin 9
- Ireland
| | - Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
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