In this review, we presented the industrial status of biomanufactured polyhydroxyalkanoates (PHA), including poly (3-hydroxybutyrate) (PHB), poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), poly (3-hydroxybutyrate-co-4-hydroxybutyrate) (P3/4HB)), and poly (3-hydroxybutyrate-3-hydroxycaproate) (PHBH). A lot of modification studies, aimed at solving problems of poor thermal stability, narrow processing window and other drawbacks of PHA, are discussed. The properties of PHA can be optimized by using proper modification method, in order to expand its applications.
本文简述了生物制造聚羟基烷酸酯 (PHA)，包括聚3-羟基丁酸酯 (PHB)、聚 (3-羟基丁酸酯-3-羟基戊酸酯) (PHBV)、聚 (3-羟基丁酸酯-4-羟基丁酸酯) (P3/4HB)、聚 (3-羟基丁酸酯-3-羟基己酸酯) (PHBH) 的产业化现状，综述了针对PHA 材料热稳定性差、加工窗口较窄等缺点而进行的一些改性研究。选用适当方法对PHA 进行改性，可使其性能得到优化，应用领域得到拓展。.
Keywords: biological modification; chemical modification; physical modification; polyhydroxyalkanoates.