The results show that PHB/PET/VA ter-polyester with vanillic acid has faster copolycondensation rate, lower melting temperature, typical thermotropic liquid crystallinity and better spinnability.

• 发现含香草酸第三单体的PHB/PET/VA三元共聚酯具有较快共聚反应速率、较低熔融温度、典型热致液晶行为和良好成纤性。