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Chain Orientation and Distribution in Ring-Banded Spherulites Formed in Poly(ester urethane) Multiblock Copolymer
Wang, Wei; Jin, Ying; Yang, Xiaoniu; Su, Zhaohui
Corresponding AuthorSu, Zhaohui(zhsu@ciac.jl.cn)
2010-03-01
Source PublicationJOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
ISSN0887-6266
Volume48Issue:5Pages:541-547
AbstractA 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
Keywordblock copolymers FTIR orientation ring-banded spherulite
Funding OrganizationNational Natural Science Foundation of China
DOI10.1002/polb.21919
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[20423003] ; National Natural Science Foundation of China[20774097] ; National Natural Science Foundation of China[50621302]
WOS Research AreaPolymer Science
WOS SubjectPolymer Science
WOS IDWOS:000274939000006
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/103395
Collection中国科学院金属研究所
Corresponding AuthorSu, Zhaohui
AffiliationChinese Acad Sci, Grad Sch Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
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.
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