The Crystallization and Morphology of Biodegradable Poly(butylene succinate-co-terephthalate) Copolyesters with High Content of BT Units

CORC > 上海有机化学研究所 > 中国科学院上海有机化学研究所 > 高分子材料研究室

	The Crystallization and Morphology of Biodegradable Poly(butylene succinate-co-terephthalate) Copolyesters with High Content of BT Units
	Li FX(李发学) ; Luo SL(罗胜利) ; Ma C(马驰) ; Yu JY(俞建勇) ; Cao AM(曹阿民)
刊名	J. Appl. Polym. Sci.
	2010
卷号	118 期号:2 页码:623-630
ISSN号	0021-8995
其他题名	生物降解性聚丁二酸丁二醇共聚对苯二甲酸酯的结晶与形貌
通讯作者	李发学
英文摘要	Isothermal crystallization and morphology of biodegradable PBST copolyesters with high content of BT units were investigated. The crystallization kinetic analysis showed that the Avrami exponent n ranged from 3.2 to 4.9, indicating a three-dimensional growth initiated by homogeneous nucleation mechanism at low crystallization temperature and heterogeneous nucleation mechanism at high temperature. After isothermal crystallization, multiple melting peaks were observed during DSC heating, and were explained by the melting and recrystallization model. The equilibrium melting temperatures of the PBST copolyesters were determined by Hoffman Weeks and Gibbs Thomson methods, respectively. Two methods, however, gave different values for each sample. The origin of the complexity and its influences on the equilibrium melting temperature of the copolyesters were analyzed. According to WAXD measurement, the copolyesters were identified to have the same crystal structure as that of PBT, suggesting that only the BT units were crystallized in the system whereas the BS units were in the amorphous state. POM micrographs showed that the crystals of the copolyesters were composed of little spherulites, beneficial to forming flexible fibers. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 118: 623-630, 2010
学科主题	高分子化学
收录类别	SCI
原文出处	http://dx.doi.org/10.1002/app.32381
语种	英语
WOS记录号	WOS:000280748400001
公开日期	2013-03-07
内容类型	期刊论文
源URL	[http://202.127.28.38/handle/331003/22950]
专题	上海有机化学研究所_高分子材料研究室
推荐引用方式 GB/T 7714	Li FX,Luo SL,Ma C,et al. The Crystallization and Morphology of Biodegradable Poly(butylene succinate-co-terephthalate) Copolyesters with High Content of BT Units[J]. J. Appl. Polym. Sci.,2010,118(2):623-630.
APA	李发学,罗胜利,马驰,俞建勇,&曹阿民.(2010).The Crystallization and Morphology of Biodegradable Poly(butylene succinate-co-terephthalate) Copolyesters with High Content of BT Units.J. Appl. Polym. Sci.,118(2),623-630.
MLA	李发学,et al."The Crystallization and Morphology of Biodegradable Poly(butylene succinate-co-terephthalate) Copolyesters with High Content of BT Units".J. Appl. Polym. Sci. 118.2(2010):623-630.