利用Avrami和莫志深方法研究聚丁二酸丁二醇酯-聚丁二酸二甘醇酯多嵌段共聚物的非等温结晶动力学

doi:10.11896/j.issn.1005-023X.2018.16.033

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Abstract The polymer processing is usually operated under nonisothermal conditions, the study on nonisothermal crystallization behaviors of polymers have very importantly practical meaning for choosing suitable processing method, equipment, temperature and time to prepare polymer materials with excellent comprehensive or desired properties. We investigated the isothermal crystallization kinetics of biodegradable poly(butylene succinate)-b-poly(diethylene glycol succinate) multiblock copolymers by the Avrami and the Mo’s method. The results showed that Avrami and the Mo’s methods can be used to describe the nonisothermal crystallization behaviors of the four samples. The crystallization mechanism almost kept unchanged while the crystallization rate decreased with an increase of PDGS content. The results also demonstrated that the decrease of crystallization rates was attributed to the dilute effect of PDGS with an increase of PDGS content in PBS-b-PDGS copolyesters. The study on the nonisothermal crystallization kinetics of PBS-b-PDGS provide theory basis for the actual processing molding.

Key words： poly(butylene succinate)-b-poly(diethylene glycol succinate) nonisothermal crystallization kinetics Avrami equation Mo’s method

Published: 18 September 2018

CLC number:	TQ323.4
	O631

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	Articles by authors
	LI Shaolong
	XU Yi
	CHEN Nongtian
	YANG Wenfeng

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LI Shaolong,XU Yi,CHEN Nongtian, et al. Nonisothermal Crystallization Kinetics of Biodegradable Poly(butylene succinate)- b-Poly(diethylene glycol succinate) Multiblock Copolymers by the Avrami and the Mo’s Methods Exclusively[J]. Materials Reports, 2018, 32(16): 2882-2888.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.16.033 OR http://www.mater-rep.com/EN/Y2018/V32/I16/2882

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