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Crystallization kinetics,mechanical properties,and hydrolytic degradation of novel eco‐friendly poly(butylene diglycolate) containing ether linkages
Authors:Feiyuan Jiang  Zhaobin Qiu
Affiliation:State Key Laboratory of Chemical Resource Engineering, MOE Key Laboratory of Carbon Fiber and Functional Polymers, Beijing University of Chemical Technology, Beijing, China
Abstract:The basic thermal properties, isothermal melt crystallization kinetics, spherulitic morphology, mechanical properties, and hydrolytic degradation behavior of a novel eco‐friendly polyester poly(butylene diglycolate) (PBDG) containing ether linkages were systematically studied with several techniques in this research. PBDG is an aliphatic polyester with high thermal stability. It had a glass transition temperature (Tg) of ?25.7 °C, a melting point temperature of 65.1 °C, and an equilibrium melting point of 73.2 °C. During the isothermal melt crystallization, PBDG crystallized slowly with increasing crystallization temperature, but the crystallization mechanism did not change. Negative spherulites were observed for PBDG. The mechanical properties of PBDG were investigated from the tensile testing. As a ductile polyester, PBDG possessed good mechanical properties. PBDG also showed a fast hydrolytic degradation rate. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133, 44186.
Keywords:crystallization  degradation  mechanical properties  thermal properties
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