1
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Chang FL, Hu B, Huang WT, Chen L, Yin XC, Cao XW, He GJ. Improvement of rheology and mechanical properties of PLA/PBS blends by in-situ UV-induced reactive extrusion. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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2
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Li S, Liao X, Xiao W, Jiang Q, Li G. The improved foaming behavior of PLA caused by the enhanced rheology properties and crystallization behavior via synergistic effect of carbon nanotubes and graphene. J Appl Polym Sci 2022. [DOI: 10.1002/app.51874] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shaojie Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
| | - Xia Liao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
| | - Wei Xiao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
| | - Qiuyue Jiang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
| | - Guangxian Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
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3
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Zhao X, Li J, Liu J, Zhou W, Peng S. Recent progress of preparation of branched poly(lactic acid) and its application in the modification of polylactic acid materials. Int J Biol Macromol 2021; 193:874-892. [PMID: 34728305 DOI: 10.1016/j.ijbiomac.2021.10.154] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/30/2021] [Accepted: 10/20/2021] [Indexed: 01/01/2023]
Abstract
Poly (lactic acid) (PLA) with branched structure has abundant terminal groups, high melt strength, good rheological properties, and excellent processability; it is a new research and application direction of PLA materials. This study mainly summarizes the molecular structure design, preparation methods, basic properties of branched PLA, and its application in modified PLA materials. The structure and properties of branched PLA prepared by ring-opening polymerization of monomer, functional group polycondensation, and chain extender in the processing process were introduced. The research progress of in situ formation of branched PLA by initiators, multifunctional monomers/additives through dynamic vulcanization, and irradiation induction was described. The effect of branched PLA on the structure and properties of linear PLA materials was analyzed. The role of branched PLA in improving the crystallization behavior, phase morphology, foaming properties, and mechanical properties of linear PLA materials was discussed. At the same time, its research progress in biomedicine and tissue engineering was analyzed. Branched PLA has excellent compatibility with PLA, which has important research value in regulating the structure and properties of PLA materials.
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Affiliation(s)
- Xipo Zhao
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China.
| | - Juncheng Li
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China
| | - Jinchao Liu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China
| | - Weiyi Zhou
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China
| | - Shaoxian Peng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China.
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4
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Tiwary P, Najafi N, Kontopoulou M. Advances in peroxide‐initiated graft modification of thermoplastic biopolyesters by reactive extrusion. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24080] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Praphulla Tiwary
- Department of Chemical Engineering Queen's University Kingston Ontario Canada
| | - Naqi Najafi
- Department of Chemical Engineering Queen's University Kingston Ontario Canada
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5
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Przybysz-Romatowska M, Haponiuk J, Formela K. Reactive extrusion of biodegradable aliphatic polyesters in the presence of free-radical-initiators: A review. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109383] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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Affiliation(s)
- Mohammadreza Nofar
- Metallurgical and Materials Engineering, Department Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, Istanbul, Turkey
| | - Reza Salehiyan
- DST-CSIR National Centre for Nanostructured Materials Council for Scientific and Industrial Research, Pretoria, South Africa
| | - Suprakas Sinha Ray
- DST-CSIR National Centre for Nanostructured Materials Council for Scientific and Industrial Research, Pretoria, South Africa
- Department of Applied Chemistry, University of Johannesburg, Johannesburg, South Africa
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7
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8
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Dawidziuk K, Simmons H, Kontopoulou M, Parent JS. Peroxide-initiated graft modification of thermoplastic BioPolyesters: Introduction of long-chain branching. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.10.053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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9
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10
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Chitosan-based hydrogels: Preparation, properties and applications. Int J Biol Macromol 2018; 115:194-220. [DOI: 10.1016/j.ijbiomac.2018.04.034] [Citation(s) in RCA: 163] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 03/18/2018] [Accepted: 04/08/2018] [Indexed: 12/18/2022]
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11
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Zhao ZG, Yang Q, Coates P, Whiteside B, Kelly A, Huang YJ, Wu PP. Structure and Property of Microinjection Molded Poly(lactic acid) with High Degree of Long Chain Branching. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01597] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhong-Guo Zhao
- College of Polymer Science and Engineering, the State Key Laboratory for Polymer Materials Engineering, Sichuan University, 610065 Chengdu, P. R. China
| | - Qi Yang
- College of Polymer Science and Engineering, the State Key Laboratory for Polymer Materials Engineering, Sichuan University, 610065 Chengdu, P. R. China
| | - Phil Coates
- Polymer IRC, Faculty of Engineering and Informatics, School of Engineering, University of Bradford, BD7 1DP Bradford, U.K
| | - Ben Whiteside
- Polymer IRC, Faculty of Engineering and Informatics, School of Engineering, University of Bradford, BD7 1DP Bradford, U.K
| | - Adrian Kelly
- Polymer IRC, Faculty of Engineering and Informatics, School of Engineering, University of Bradford, BD7 1DP Bradford, U.K
| | - Ya-Jiang Huang
- College of Polymer Science and Engineering, the State Key Laboratory for Polymer Materials Engineering, Sichuan University, 610065 Chengdu, P. R. China
| | - Ping-Ping Wu
- College of Polymer Science and Engineering, the State Key Laboratory for Polymer Materials Engineering, Sichuan University, 610065 Chengdu, P. R. China
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12
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Arias A, Sojoudiasli H, Heuzey MC, Huneault MA, Wood-Adams P. Rheological study of crystallization behavior of polylactide and its flax fiber composites. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1210-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Jahandideh A, Muthukumarappan K. Star-shaped lactic acid based systems and their thermosetting resins; synthesis, characterization, potential opportunities and drawbacks. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2016.12.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Shear-induced enhancements of crystallization kinetics and morphological transformation for long chain branched polylactides with different branching degrees. Sci Rep 2016; 6:26560. [PMID: 27246803 PMCID: PMC4887888 DOI: 10.1038/srep26560] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 05/05/2016] [Indexed: 11/21/2022] Open
Abstract
The effects of long chain branching (LCB) degree on the shear-induced isothermal crystallization kinetics of a series of LCB polylactides (LCB PLAs) have been investigated by using rotational rheometer, polarized optical microscopy (POM) and scanning electron microscopy (SEM). Dynamic viscoelastic properties obtained by small-amplitude oscillatory shear (SAOS) tests indicate that LCB PLAs show more broadened relaxation time spectra with increasing LCB degree. Upon a pre-shear at the shear rate of 1 s−1 LCB PLAs show much faster crystallization kinetics than linear PLA and the crystallization kinetics is enhanced with increasing LCB degree. By modeling the system as a suspension the quantitative evaluation of nucleation density can be derived from rheological experiments. The nucleation density is greatly enhanced with increasing LCB degree and a saturation in shear time is observed. Crystalline morphologies for LCB PLAs observed by POM and SEM demonstrate the enhancement of nucleation density with increasing LCB degree and a transformation from spherulitic to orientated crystalline morphologies. The observation can be ascribed to longer relaxation time of the longest macromolecular chains and broadened, complex relaxation behaviors due to the introduction of LCB into PLA, which is essential in stabilizing the orientated crystal nuclei after pre-shear.
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15
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Chen CQ, Ke DM, Zheng TT, He GJ, Cao XW, Liao X. An Ultraviolet-Induced Reactive Extrusion To Control Chain Scission and Long-Chain Branching Reactions of Polylactide. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.5b04094] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chang-Qian Chen
- The
Key Laboratory of Polymer Processing Engineering of Ministry of Education,
National Engineering Research Center of Novel Equipment for Polymer
Processing, South China University of Technology, Guangzhou 510640, China
| | - Ding-Meng Ke
- The
Key Laboratory of Polymer Processing Engineering of Ministry of Education,
National Engineering Research Center of Novel Equipment for Polymer
Processing, South China University of Technology, Guangzhou 510640, China
| | - Ting-Ting Zheng
- The
Key Laboratory of Polymer Processing Engineering of Ministry of Education,
National Engineering Research Center of Novel Equipment for Polymer
Processing, South China University of Technology, Guangzhou 510640, China
| | - Guang-Jian He
- The
Key Laboratory of Polymer Processing Engineering of Ministry of Education,
National Engineering Research Center of Novel Equipment for Polymer
Processing, South China University of Technology, Guangzhou 510640, China
| | - Xian-Wu Cao
- The
Key Laboratory of Polymer Processing Engineering of Ministry of Education,
National Engineering Research Center of Novel Equipment for Polymer
Processing, South China University of Technology, Guangzhou 510640, China
| | - Xia Liao
- The
Key Laboratory of Polymer Processing Engineering of Ministry of Education,
National Engineering Research Center of Novel Equipment for Polymer
Processing, South China University of Technology, Guangzhou 510640, China
- College
of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu, Sichuan 610065, China
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16
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Han X, Hu Y, Tang M, Fang H, Wu Q, Wang Z. Preparation and characterization of long chain branched polycarbonates with significantly enhanced environmental stress cracking behavior through gamma radiation with addition of difunctional monomer. Polym Chem 2016. [DOI: 10.1039/c6py00289g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of long chain branched polycarbonates (LCB-PCs) was prepared with unique topological structures and significantly enhanced ESC properties.
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Affiliation(s)
- Xiaohang Han
- CAS Key Laboratory of Soft Matter Chemistry
- Department of Polymer Science and Engineering
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
| | - Yangguang Hu
- CAS Key Laboratory of Soft Matter Chemistry
- Department of Polymer Science and Engineering
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
| | - Miao Tang
- CAS Key Laboratory of Soft Matter Chemistry
- Department of Polymer Science and Engineering
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
| | - Huagao Fang
- CAS Key Laboratory of Soft Matter Chemistry
- Department of Polymer Science and Engineering
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
| | - Qianghua Wu
- CAS Key Laboratory of Soft Matter Chemistry
- Department of Polymer Science and Engineering
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
| | - Zhigang Wang
- CAS Key Laboratory of Soft Matter Chemistry
- Department of Polymer Science and Engineering
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
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17
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Khajeheian MB, Rosling A. Preparation and characterization of linear and star-shaped polyL-lactide blends. J Appl Polym Sci 2015. [DOI: 10.1002/app.42231] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mohammad B. Khajeheian
- FUNMAT Centre of Excellence; Laboratory of Polymer Technology; Åbo Akademi University; FI-20500 Turku/Åbo Finland
| | - Ari Rosling
- FUNMAT Centre of Excellence; Laboratory of Polymer Technology; Åbo Akademi University; FI-20500 Turku/Åbo Finland
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18
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Sun Y, Wu L, Bu Z, Li BG, Li N, Dai J. Synthesis and Thermomechanical and Rheological Properties of Biodegradable Long-Chain Branched Poly(butylene succinate-co-butylene terephthalate) Copolyesters. Ind Eng Chem Res 2014. [DOI: 10.1021/ie501504b] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yongjian Sun
- State Key Laboratory of Chemical Engineering at ZJU, Department of Chemical & Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Linbo Wu
- State Key Laboratory of Chemical Engineering at ZJU, Department of Chemical & Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhiyang Bu
- State Key Laboratory of Chemical Engineering at ZJU, Department of Chemical & Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Bo-Geng Li
- State Key Laboratory of Chemical Engineering at ZJU, Department of Chemical & Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Naixiang Li
- Sinopec
Yizheng Chemical Fiber Company Limited, Yizheng, 255000, China
| | - Junming Dai
- Sinopec
Yizheng Chemical Fiber Company Limited, Yizheng, 255000, China
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19
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Xu H, Fang H, Bai J, Zhang Y, Wang Z. Preparation and Characterization of High-Melt-Strength Polylactide with Long-Chain Branched Structure through γ-Radiation-Induced Chemical Reactions. Ind Eng Chem Res 2014. [DOI: 10.1021/ie403669a] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Hongjun Xu
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Polymer Science and Engineering, Hefei
National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui Province 230026, P. R. China
| | - Huagao Fang
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Polymer Science and Engineering, Hefei
National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui Province 230026, P. R. China
| | - Jing Bai
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Polymer Science and Engineering, Hefei
National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui Province 230026, P. R. China
| | - Yaqiong Zhang
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Polymer Science and Engineering, Hefei
National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui Province 230026, P. R. China
| | - Zhigang Wang
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Polymer Science and Engineering, Hefei
National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui Province 230026, P. R. China
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20
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Fang H, Zhang Y, Bai J, Wang Z. Shear-Induced Nucleation and Morphological Evolution for Bimodal Long Chain Branched Polylactide. Macromolecules 2013. [DOI: 10.1021/ma4012126] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Huagao Fang
- CAS Key Laboratory
of Soft Matter Chemistry, Department of Polymer Science and Engineering,
Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei,
Anhui Province 230026, P. R. China
| | - Yaqiong Zhang
- CAS Key Laboratory
of Soft Matter Chemistry, Department of Polymer Science and Engineering,
Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei,
Anhui Province 230026, P. R. China
| | - Jing Bai
- CAS Key Laboratory
of Soft Matter Chemistry, Department of Polymer Science and Engineering,
Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei,
Anhui Province 230026, P. R. China
| | - Zhigang Wang
- CAS Key Laboratory
of Soft Matter Chemistry, Department of Polymer Science and Engineering,
Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei,
Anhui Province 230026, P. R. China
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21
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Abstract
Environmental concerns have led to the development of biorenewable polymers with the ambition to utilize them at an industrial scale. Poly(lactic acid) and poly(hydroxyalkanoates) are semicrystalline, biorenewable polymers that have been identified as the most promising alternatives to conventional plastics. However, both are inherently susceptible to brittleness and degradation during thermal processing; we discuss several approaches to overcome these problems to create a balance between durability and biodegradability. For example, copolymers and blends can increase ductility and the thermal-processing window. Furthermore, chain modifications (e.g., branching/crosslinking), processing techniques (fiber drawing/annealing), or additives (plasticizers/nucleating agents) can improve mechanical properties and prevent thermal degradation during processing. Finally, we examine the impacts of morphology on end-of-life degradation to complete the picture for the most common renewable polymers.
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Affiliation(s)
- Amy Tsui
- Department of Chemical Engineering, Stanford University, Stanford, California 94305;, ,
| | - Zachary C. Wright
- Department of Chemical Engineering, Stanford University, Stanford, California 94305;, ,
| | - Curtis W. Frank
- Department of Chemical Engineering, Stanford University, Stanford, California 94305;, ,
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22
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You J, Lou L, Yu W, Zhou C. The preparation and crystallization of long chain branching polylactide made by melt radicals reaction. J Appl Polym Sci 2013. [DOI: 10.1002/app.38912] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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23
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Fang H, Zhang Y, Bai J, Wang Z, Wang Z. Bimodal architecture and rheological and foaming properties for gamma-irradiated long-chain branched polylactides. RSC Adv 2013. [DOI: 10.1039/c3ra40879e] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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24
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Effect of leaving group in dithiocarbamates on mediating melt radical reaction during preparing long chain branched polypropylene. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.01.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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