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
	2002
发表期刊	Polymer
ISSN	0032-3861
卷号	43 期号:3 页码:953-961
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.
部门归属	chinese acad sci, changchun inst appl chem, polymer engn lab, changchun 130022, jinlin, peoples r china. chinese acad sci, changchun inst appl chem, state key lab polymer phys & chem, changchun 130022, jinlin, peoples r china. chinese acad sci, inst met res, shenyang 110015, liaoning, peoples r china. ne normal univ, ctr electron microscopy, dept biol, changchun 130021, jilin, peoples r china.;chen, b (reprint author), chinese acad sci, changchun inst appl chem, polymer engn lab, changchun 130022, jinlin, peoples r china
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
URL	查看原文
WOS记录号	WOS:000172607500035
引用统计	被引频次：51[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36235
专题	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.