Crystallization behaviour of syndiotactic polystyrene and benzoylated syndiotactic polystyrene

	Crystallization behaviour of syndiotactic polystyrene and benzoylated syndiotactic polystyrene
	Wei, Yi; Ke, Yucai; Cao, Xinyu; Zhang, Jingnan; Sang, Xinxin; Ma, Yongmei; Wang, Fosong
刊名	POLYMER
	2016-12-19
卷号	107 页码:71-81
关键词	Crystallization Behaviour Syndiotactic Polystyrene Benzoylated Sps
英文摘要	The crystallization behaviour of syndiotactic polystyrene (sPS) and benzoylated sPS (BzsPS) was investigated by POM, DSC and XRD. The results suggest beta form of sPS has higher equilibrium melting temperature T-m(0) and the fold surface free energy sigma(e) than T-m(0) form. With increasing benzoylation degree the growth rates T-m(0) and T-m(0) of two forms decrease, but their T-m(0) decrement is very close; the sigma(e) of beta form more increases than that of alpha form, the formation of alpha is more favourable. Upon loading trace amount of alpha nucleating agent PTBBNa in samples the growth rate of two forms can be strictly compared in the same melting and crystallization temperature condition, the results reveal that the growth rate of beta form is faster than that of alpha form in sPS and BzsPS-2%. Using supercooling degree Delta T and sigma(e) two parameters has explained the formation competition mechanism of alpha and beta forms. (C) 2016 Elsevier Ltd. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/37963]
专题	化学研究所_绿色印刷实验室
作者单位	Chinese Acad Sci, Inst Chem, Key Lab Green Printing, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wei, Yi,Ke, Yucai,Cao, Xinyu,et al. Crystallization behaviour of syndiotactic polystyrene and benzoylated syndiotactic polystyrene[J]. POLYMER,2016,107:71-81.
APA	Wei, Yi.,Ke, Yucai.,Cao, Xinyu.,Zhang, Jingnan.,Sang, Xinxin.,...&Wang, Fosong.(2016).Crystallization behaviour of syndiotactic polystyrene and benzoylated syndiotactic polystyrene.POLYMER,107,71-81.
MLA	Wei, Yi,et al."Crystallization behaviour of syndiotactic polystyrene and benzoylated syndiotactic polystyrene".POLYMER 107(2016):71-81.