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	Structure and properties of polypropylene alloy in situ blends
	Cui, NN; Ke, YC; Lu, ZX; Wu, CH; Hu, YL
刊名	Journal of applied polymer science
	2006-06-15
卷号	100期号:6页码:4804-4810
关键词	Polypropylene (pp) alloy Toughness Ziegler-natta Catalyst Ethylene-propylene copolymer Diether
ISSN号	0021-8995
DOI	10.1002/app.23459
通讯作者	Hu, yl()
英文摘要	A series of polypropylene (pp) alloys containing different ethylene contents have been prepared by the in situ sequential polymerization technique, using ziegler-natta catalyst (mgcl2/ticl4/bmf; bmf is 9,9-bis-(methoxymethyl)fluorine, as an internal donor) without any external donor. the structure and properties of pp alloys obtained have been investigated by nuclear magnetic resonance, fourier transform infrared spectroscopy, dynamic mechanical analysis, differential scanning calorimetry, and scanning electron microscopy (sem). the results have suggested that pp alloys are the complex mixtures containing pp, the copolymer with long sequence ethylene chain, ethylene-propylene rubber (epr), and block copolymer etc. in the alloys, pp, epr, and the copolymer with long sequence ethylene chain are partially compatible. the investigation of the mechanical propertied indicates that notched izod impact strength of pp alloy greatly increases at 16 degrees c/-20 degrees c in comparison with that of pure pp. the noticeable plastic deformation is observed in sem photograph. the increase in the toughness, the mechanical strength of pp alloy decreases to a certain extent. (c) 2006 wiley periodicals, inc.
WOS关键词	ETHYLENE ; MORPHOLOGY ; POLYMERIZATION ; CATALYSTS
WOS研究方向	Polymer Science
WOS类目	Polymer Science
语种	英语
出版者	JOHN WILEY & SONS INC
WOS记录号	WOS:000237126900069
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2379955
专题	中国科学院大学
通讯作者	Hu, YL
作者单位	1.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, CAS,Key Lab Engn Plast, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Cui, NN,Ke, YC,Lu, ZX,et al. Structure and properties of polypropylene alloy in situ blends[J]. Journal of applied polymer science,2006,100(6):4804-4810.
APA	Cui, NN,Ke, YC,Lu, ZX,Wu, CH,&Hu, YL.(2006).Structure and properties of polypropylene alloy in situ blends.Journal of applied polymer science,100(6),4804-4810.
MLA	Cui, NN,et al."Structure and properties of polypropylene alloy in situ blends".Journal of applied polymer science 100.6(2006):4804-4810.

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