聚2,5-呋喃二甲酸乙二酯的合成与表征

摘要

Poly ( ethylene 2,5-furandicarboxylate) was achieved on polycondensation reactions of ethylene glycol with 2,5furandicarboxylic acid. The chemical structure of polyester was characterized by using NMR and FTIR. Glass transition temperature and intrinsic viscosity measured by using DSC and Ubbelohde viscometer were 73℃ and 0.23 respectively.%以乙二醇和生物质单体2,5-呋喃二甲酸为原料通过熔融缩聚制备聚2,5-呋喃二甲酸乙二酯(PEF),采用傅立叶变换红外光谱仪、核磁共振仪对其分子结构进行表征,并采用差示扫描量热仪和乌氏粘度计对PEF的玻璃化转变和特性黏度进行研究,结果表明,所得聚酯的玻璃化转变温度为73℃,特性黏度为0.23.