Time-resolved synchrotron SAXS observations on sheared syndiotactic poly(propylene) crystallization process

doi:10.1002/macp.200800112

CORC > 化学研究所 > 中国科学院化学研究所

	Time-resolved synchrotron SAXS observations on sheared syndiotactic poly(propylene) crystallization process
	Wen, Huiying 1,3; Jiang, Shichun 1,2; Men, Yongfeng 1; An, Lijia 1; Wu, Zhonghua 4; Okuda, Hiroshi
刊名	MACROMOLECULAR CHEMISTRY AND PHYSICS
	2008-08-21
卷号	209 期号:16 页码:1721-1729
关键词	Crystallization Lamellae Mesomorphic Structure Mesophase Saxs Synchrotron
ISSN号	1022-1352
DOI	10.1002/macp.200800112
英文摘要	The in situ crystallization kinetics of syndiotactic poly(propylene) (sPP) has been investigated by synchrotron small-angle X-ray scattering (SAXS). The structure evolutions during the isothermal crystallization of sPP with different shear rates have been observed. The results show that shear accelerates the process of crystallization kinetics. Even under low shear rate, the lamellae can be distinctly oriented. In contrast, the lamellar parameters such as the long period, lamellar thickness, and the scattering invariant 0 can change obviously only under high shear rate. A mesomorphic structure proposed by Strobl is adopted to elucidate the differences of shear effects with low and high shear rates. Based on all the analysis we are convinced that a relatively stable mesomorphic structure forms before shear is composed and the shear effects on the mesophase will be retained to a certain extent until crystallization is finished.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000258907100009
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/65491]
专题	中国科学院化学研究所
通讯作者	Jiang, Shichun
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China 3.NE Foresty Univ, Coll Engn & Technol, Harbin 150040, Peoples R China 4.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Lab, Beijing 100039, Peoples R China 5.Kyoto Univ, Int Innovat Ctr, Sakyo Ku, Kyoto 6068501, Japan
推荐引用方式 GB/T 7714	Wen, Huiying,Jiang, Shichun,Men, Yongfeng,et al. Time-resolved synchrotron SAXS observations on sheared syndiotactic poly(propylene) crystallization process[J]. MACROMOLECULAR CHEMISTRY AND PHYSICS,2008,209(16):1721-1729.
APA	Wen, Huiying,Jiang, Shichun,Men, Yongfeng,An, Lijia,Wu, Zhonghua,&Okuda, Hiroshi.(2008).Time-resolved synchrotron SAXS observations on sheared syndiotactic poly(propylene) crystallization process.MACROMOLECULAR CHEMISTRY AND PHYSICS,209(16),1721-1729.
MLA	Wen, Huiying,et al."Time-resolved synchrotron SAXS observations on sheared syndiotactic poly(propylene) crystallization process".MACROMOLECULAR CHEMISTRY AND PHYSICS 209.16(2008):1721-1729.