Biodegradable aliphatic/aromatic copolymers based on terephthalic acid and poly(L-lactic acid): Synthesis, characterization and hydrolytic degradation
Article
Article Title | Biodegradable aliphatic/aromatic copolymers based on terephthalic acid and poly(L-lactic acid): Synthesis, characterization and hydrolytic degradation |
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ERA Journal ID | 3960 |
Article Category | Article |
Authors | Wang, Bing-tao (Author), Zhang, Yan (Author), Song, Pingan (Author), Guo, Zhenghong (Author), Cheng, Jie (Author) and Fang, Zhengping (Author) |
Journal Title | Chinese Journal of Polymer Science |
Journal Citation | 28 (1), pp. 405-415 |
Number of Pages | 11 |
Year | 2010 |
Publisher | Chinese Chemical Society |
Springer | |
Place of Publication | China |
ISSN | 0256-7679 |
1439-6203 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s10118-010-9032-y |
Web Address (URL) | https://link.springer.com/article/10.1007/s10118-010-9032-y |
Abstract | Biodegradable aliphatic/aromatic copolyesters, poly(butylene terephthalate-co-lactate) (PBTL) were prepared via direct melt polycondensation of terephthalic acid (TPA), 1,4-butanediol (BDO) and poly(L-lactic acid) oligomer (OLLA). The effects of polymerization time and temperature, as well as aliphatic/aromatic moiety ratio on the physical and thermal properties were investigated. The largest molecular weight of the copolyesters was up to 64100 with molecular weight distribution index of 2.09 when the polycondensation was carried out at 230°C for 6 h. DSC, XRD, DMA and TGA analysis clearly indicated that the degree of crystallinity, glass-transition temperature, melting point, decomposition temperature, tensile strength, elongation and Young's modulus were influenced by the ratio between TPA and OLLA in the final copolyesters. Hydrolytic degradation results demonstrated that the incorporation of biodegradable lactate moieties into the aromatic polyester could efficiently improve hydrolytic degradability of the copolymer even though it still had many aromatic units in the main chains. |
Keywords | aliphatic/aromatic copolyesters, direct melt polycondensation, iodegradable |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401699. Materials engineering not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Zhejiang A & F University, China |
Zhejiang University, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q50vx/biodegradable-aliphatic-aromatic-copolymers-based-on-terephthalic-acid-and-poly-l-lactic-acid-synthesis-characterization-and-hydrolytic-degradation
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