CONFINED LAMELLA FORMATION IN CRYSTALLINE-CRYSTALLINE POLY(ETHYLENE OXIDE)-b-POLY(ε-CAPROLACTONE) DIBLOCK COPOLYMERS
Special Issue: In Memory of Prof. Bingzheng Jiang|Updated:2023-01-03
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CONFINED LAMELLA FORMATION IN CRYSTALLINE-CRYSTALLINE POLY(ETHYLENE OXIDE)-b-POLY(ε-CAPROLACTONE) DIBLOCK COPOLYMERS
CONFINED LAMELLA FORMATION IN CRYSTALLINE-CRYSTALLINE POLY(ETHYLENE OXIDE)-b-POLY(ε-CAPROLACTONE) DIBLOCK COPOLYMERS
Chinese Journal of Polymer Science2013年31卷第9期 页码:1260-1270
Affiliations:
a.School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
b.State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
c.HASYLAB at DESY, Notkestraße 85, D-22607 Hamburg, Germany
investigation of the crystallization process and structure transitions of asymmetric crystalline-crystalline diblock copolymers from the melt was performed with synchrotron simultaneous SAXS/WAXS. The asymmetric poly(ethylene oxide)-
b
-poly(
ε
-caprolactone) diblock copolymers were chosen for the present study. It was shown that the short blocks crystallized later than the long blocks and final lamellar structure was formed in all of the asymmetric diblock copolymers. The final lamellar structure was confirmed by AFM observation. The SAXS data were analyzed with different methods for the early stage of the crystallization. The Guinier plots indicated that there were no isolated domains formed before the formation of lamellae in the asymmetric diblock copolymers during the crystallization process. Debye- Bueche plots implied the formation of correlated domains during crystallization.
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相关作者
Shu-Guang Yang
Qing-Yun Guo
Hao Huang
Han-Xin Jian
Yi-Sheng Huang
Peng Zhang
Tian-Bai He
Peter Müller-Buschbaum
相关机构
State Key Laboratory of Advanced Fibers Materials, Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University
School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Institute of Green Chemistry and Molecular Engineering, Sun Yat-sen University