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Polyhydroxyalkanoates (PHAs), produced by the microbial fermentation, is a promising green polymer and has attracted much attention due to its excellent biocompatibility, complete biodegradability, and non-cytotoxicity. The physical properties of PHAs are closely related to their chemical and crystalline structure. Therefore, deep understanding and regulating the structure and crystallization of PHAs are the key factors to improve the performance of PHAs. This review first provides a brief overview of the development history, chemical structure, and basic properties of PHAs. Then, the crystal structure, crystal morphology, kinetics theories and crystallization behavior of nucleation-induced PHAs are systematically summarized to provide a theoretical foundation for improving PHAs crystallization rate and physical properties. In the end, the outlook on the crystallization and application prospects of PHAs is also addressed. Copyright © 2022. Published by Elsevier B.V.


Qian Wang, Yunsheng Xu, Pengwu Xu, Weijun Yang, Mingqing Chen, Weifu Dong, Piming Ma. Crystallization of microbial polyhydroxyalkanoates: A review. International journal of biological macromolecules. 2022 Jun 01;209(Pt A):330-343

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PMID: 35398060

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