Syntheses and properties of the PET‐ co ‐PEA copolyester

作者：Lipeng Wang, Yu Wang, Fuchen Zhang, Yongping Bai, Liping Ding · 发表于：Journal of Applied Polymer Science · 年份：2017 · DOI：10.1002/app.44967 · 被引用次数：16 · 研究领域：biodegradable polymer synthesis and properties、Polymer crystallization and properties、Carbon dioxide utilization in catalysis

ABSTRACT An aliphatic‐aromatic random‐block copolyester of poly(ethylene terephthalate) (PET), and poly(enthylene adipate) (PEA), PET‐ co ‐PEA, was synthesized via melt polycondensation. The chemical structure of the products were characterized by two kinds of spectroscopic techniques (Fourier transform infrared and 1 H‐NMR). The thermal properties of the copolyester were characterized by thermogravimetry analysis, differential scanning calorimetry, wide‐angle X‐ray diffraction, and polarized optical microscopy. It was found that the crystallization ability, melting point, glass transition temperature of the random‐block coplyester decreased apparently. Meanwhile, the tensile strength and hydrolysis performance were measured as well. The result showed that the random‐block copolyesters PET‐ co ‐PEA displayed excellent properties in elasticity and strength. In addition, the potential degradability was found in hydrolysis measurement. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 44967.