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Molecular Weight Dependency of Crystallization and Melting Behavior of beta-Nucleated Isotactic Polypropylene

文献类型：期刊论文

作者Lu, Ying ; Wang, Qiao ; Men, Yongfeng
刊名journal of polymer science part b-polymer physics
出版日期2014
卷号52期号:19页码:1301-1308
关键词Compounds of isotactic polypropylene (iPP) and beta-nucleating agent were used to investigate the relationship between the development of beta phase and molecular weight in iPP under quiescent crystallization conditions by using wide angle X-ray diffraction and differential scanning calorimetry techniques. In all cases the dependency of the formation of beta phase in iPP on molecular weight of iPP at a defined crystallization temperature range was found. The iPP with high molecular weight possessed a wide range of crystallization temperature in inducing rich beta phase. However poor or even no beta phase was obtained for the samples with low molecular weight in the same range. In addition an upper critical crystallization temperature of producing dominant beta phase was found at 125 degrees C. Beyond this temperature a phenomenon of prevailing alpha phase became obvious. (C) 2014 Wiley Periodicals Inc.
通讯作者men,yf
英文摘要shear-induced crystallization; supermolecular structure; polymorphic transitions; mechanical-behavior; growth transitions; crystal-structure; phase; alpha; poly(propylene); morphology
收录类别SCI
语种英语
公开日期2015-10-27
源URL[http://ir.ciac.jl.cn/handle/322003/57292]  
专题长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式
GB/T 7714		 Lu, Ying,Wang, Qiao,Men, Yongfeng. Molecular Weight Dependency of Crystallization and Melting Behavior of beta-Nucleated Isotactic Polypropylene[J]. journal of polymer science part b-polymer physics,2014,52(19):1301-1308.
APA Lu, Ying,Wang, Qiao,&Men, Yongfeng.(2014).Molecular Weight Dependency of Crystallization and Melting Behavior of beta-Nucleated Isotactic Polypropylene.journal of polymer science part b-polymer physics,52(19),1301-1308.
MLA Lu, Ying,et al."Molecular Weight Dependency of Crystallization and Melting Behavior of beta-Nucleated Isotactic Polypropylene".journal of polymer science part b-polymer physics 52.19(2014):1301-1308.

入库方式： OAI收割

来源：长春应用化学研究所

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