Compatibilization effects of block copolymers in high density polyethylene/syndiotactic polystyrene blends

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	Compatibilization effects of block copolymers in high density polyethylene/syndiotactic polystyrene blends
	B. Chen ; X. L. Li ; S. Q. Xu ; T. Tang ; B. L. Zhou ; B. T. Huang
刊名	Polymer
	2002
卷号	43 期号:3 页码:953-961
关键词	syndiotactic polystyrene blend compatibilization multicomponent polymer systems mechanical-properties syndiotactic polystyrene polyethylene blends atactic polystyrene diblock copolymer molecular design sebs copolymer morphology tensile
ISSN号	0032-3861
中文摘要	Three triblock copolymers of poly[styrene-b-(ethylene-co-butylene)-b-styrene] (SEBS) of different molecular weights and one diblock copolymer of poly[styrene-b-(ethylene-co-butylene)] (SEB) were used to compatibilize high density polyethylene/syndiotactic polystyrene (HDPE/sPS, 80/20) blend. Morphology observation showed that phase size of the dispersed sPS particles was significantly reduced on addition of all the four copolymers and the interfacial adhesion between the two phases was dramatically enhanced. Tensile strength of the blends increased at lower copolymer content but decreased with increasing copolymer content. The elongation at break of the blends improved and sharply increased with increments of the copolymers. Drop in modulus of the blend was observed on addition of the rubbery copolymers. The mechanical performance of the modified blends is strikingly dependent not only on the interfacial activity of the copolymers but also on the mechanical properties of the copolymers, particularly at the high copolymer concentration. Addition of compatibilizers to HDPE/sPS blend resulted in a significant reduction in crystallinity of both HDPE and sPS. Measurements of Vicat softening temperature of the HDPE/sPS blends show that heat resistance of HDPE is greatly improved upon incorporation of 20 wt% sPS. (C) 2001 Elsevier Science Ltd. All rights reserved.
原文出处	://WOS:000172607500035
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/36235]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	B. Chen,X. L. Li,S. Q. Xu,et al. Compatibilization effects of block copolymers in high density polyethylene/syndiotactic polystyrene blends[J]. Polymer,2002,43(3):953-961.
APA	B. Chen,X. L. Li,S. Q. Xu,T. Tang,B. L. Zhou,&B. T. Huang.(2002).Compatibilization effects of block copolymers in high density polyethylene/syndiotactic polystyrene blends.Polymer,43(3),953-961.
MLA	B. Chen,et al."Compatibilization effects of block copolymers in high density polyethylene/syndiotactic polystyrene blends".Polymer 43.3(2002):953-961.