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

doi:10.1002/polb.21919

IMR OpenIR

	Chain Orientation and Distribution in Ring-Banded Spherulites Formed in Poly(ester urethane) Multiblock Copolymer
	Wang, Wei; Jin, Ying; Yang, Xiaoniu; Su, Zhaohui
通讯作者	Su, Zhaohui(zhsu@ciac.jl.cn)
	2010-03-01
发表期刊	JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
ISSN	0887-6266
卷号	48 期号:5 页码:541-547
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
关键词	block copolymers FTIR orientation ring-banded spherulite
资助者	National Natural Science Foundation of China
DOI	10.1002/polb.21919
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[20423003] ; National Natural Science Foundation of China[20774097] ; National Natural Science Foundation of China[50621302]
WOS研究方向	Polymer Science
WOS类目	Polymer Science
WOS记录号	WOS:000274939000006
出版者	JOHN WILEY & SONS INC
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/103395
专题	中国科学院金属研究所
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.