Chain Orientation and Distribution in Ring-Banded Spherulites Formed in Poly(ester urethane) Multiblock Copolymer

doi:10.1002/polb.21919

CORC > 化学研究所 > 中国科学院化学研究所

	Chain Orientation and Distribution in Ring-Banded Spherulites Formed in Poly(ester urethane) Multiblock Copolymer
	Wang, Wei; Jin, Ying; Yang, Xiaoniu; Su, Zhaohui
刊名	JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
	2010-03-01
卷号	48 期号:5 页码:541-547
关键词	Block Copolymers Ftir Orientation Ring-banded Spherulite
ISSN号	0887-6266
DOI	10.1002/polb.21919
英文摘要	A poly(ester urethane) multiblock copolymer containing poly(epsilon-caprolactone) glycol (PCL) soft segments gives ring-banded spherulite as crystallized from its melted film. Analysis based on polarized light microscopy and atomic force microcopy revealed that the ring-banded structures consist of alternate convex and concave bands as a consequence of rhythmic growth. These convex and concave bands, which are composed of flat-on and edge-on lamellae, show layered terrace-like and fibrillar morphology, respectively. The chain orientation and composition distribution in the ring-banded spherulites were further investigated using FTIR imaging. The convex bands are mainly PCL-rich domains with perpendicular chain orientation to the substrate, and the concave bands are urethane-rich domains, where the PCL chains are perpendicular to the radial growth directions of the spherulite but parallel to the film plane. The formation of different orientations in the convex and concave bands is attributed to the rhythmic growth behavior for the copolymers with composition distribution along the chains. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 48: 541-547, 2010
语种	英语
出版者	JOHN WILEY & SONS INC
WOS记录号	WOS:000274939000006
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/71261]
专题	中国科学院化学研究所
通讯作者	Su, Zhaohui
作者单位	Chinese Acad Sci, Grad Sch Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Wang, Wei,Jin, Ying,Yang, Xiaoniu,et al. Chain Orientation and Distribution in Ring-Banded Spherulites Formed in Poly(ester urethane) Multiblock Copolymer[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2010,48(5):541-547.
APA	Wang, Wei,Jin, Ying,Yang, Xiaoniu,&Su, Zhaohui.(2010).Chain Orientation and Distribution in Ring-Banded Spherulites Formed in Poly(ester urethane) Multiblock Copolymer.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,48(5),541-547.
MLA	Wang, Wei,et al."Chain Orientation and Distribution in Ring-Banded Spherulites Formed in Poly(ester urethane) Multiblock Copolymer".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 48.5(2010):541-547.