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

	Time-resolved synchrotron SAXS observations on sheared syndiotactic poly(propylene) crystallization process
	Wen, HY; Jiang, SC; Men, YF; An, LJ; Wu, ZH; Okuda, H; Wu ZH(吴忠华)
刊名	MACROMOLECULAR CHEMISTRY AND PHYSICS
	2008
卷号	209 期号:16 页码:1721-1729
关键词	crystallization lamellae mesomorphic structure mesophase SAXS synchrotron
通讯作者	[Wen, Huiying ; Jiang, Shichun ; Men, Yongfeng ; An, Lijia] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China ; [Jiang, Shichun] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China ; [Wen, Huiying] NE Foresty Univ, Coll Engn & Technol, Harbin 150040, Peoples R China ; [Wu, Zhonghua] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Lab, Beijing 100039, Peoples R China ; Kyoto Univ, Int Innovat Ctr, Sakyo Ku, Kyoto 6068501, Japan
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.
学科主题	Polymer Science
类目[WOS]	Polymer Science
研究领域[WOS]	Polymer Science
原文出处	SCI
语种	英语
WOS记录号	WOS:000258907100009
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/239495]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Wen, HY,Jiang, SC,Men, YF,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, HY.,Jiang, SC.,Men, YF.,An, LJ.,Wu, ZH.,...&吴忠华.(2008).Time-resolved synchrotron SAXS observations on sheared syndiotactic poly(propylene) crystallization process.MACROMOLECULAR CHEMISTRY AND PHYSICS,209(16),1721-1729.
MLA	Wen, HY,et al."Time-resolved synchrotron SAXS observations on sheared syndiotactic poly(propylene) crystallization process".MACROMOLECULAR CHEMISTRY AND PHYSICS 209.16(2008):1721-1729.