Ishii-Hyakutake Manami, Mizuno Shoji, Tsuge Takeharu
Bioplastic Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
Department of Materials Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8501, Japan.
Polymers (Basel). 2018 Nov 14;10(11):1267. doi: 10.3390/polym10111267.
Polyhydroxyalkanoates (PHAs) are polyesters synthesized by bacteria as a carbon and energy storage material. PHAs are characterized by thermoplasticity, biodegradability, and biocompatibility, and thus have attracted considerable attention for use in medical, agricultural, and marine applications. The properties of PHAs depend on the monomer composition and many types of PHA monomers have been reported. This review focuses on biosynthesized PHAs bearing aromatic groups as side chains. Aromatic PHAs show characteristics different from those of aliphatic PHAs. This review summarizes the types of aromatic PHAs and their characteristics, including their thermal and mechanical properties and degradation behavior. Furthermore, the effect of the introduction of an aromatic monomer on the glass transition temperature () of PHAs is discussed. The introduction of aromatic monomers into PHA chains is a promising method for improving the properties of PHAs, as the characteristics of aromatic PHAs differ from those of aliphatic PHAs.
聚羟基脂肪酸酯（PHA）是细菌合成的聚酯，用作碳和能量储存材料。PHA具有热塑性、生物可降解性和生物相容性等特点，因此在医学、农业和海洋应用中备受关注。PHA的性能取决于单体组成，并且已报道了多种类型的PHA单体。本综述聚焦于带有芳香族基团作为侧链的生物合成PHA。芳香族PHA表现出与脂肪族PHA不同的特性。本综述总结了芳香族PHA的类型及其特性，包括它们的热性能、机械性能和降解行为。此外，还讨论了引入芳香族单体对PHA玻璃化转变温度（）的影响。将芳香族单体引入PHA链中是改善PHA性能的一种有前景的方法，因为芳香族PHA的特性与脂肪族PHA不同。
