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
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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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