SYNCHROTRON INVESTIGATION ON MESOMORPHIC STRUCTURE OF sPP AND POLY（ETHYLENE-CO-OCTENE） IN THEIR INITIAL CRYSTALLIZATION STAGE

Using synchrotron SAXS and WAXS, we investigated crystalline structures including crystallite size, lamellar thickness, long spacing of syndiotactic polypropylene （sPP） and poly（ethylene-co-octene） （PEcO） that crystallized from the sheared melt. The independence of the shear effects on the crystalli...

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Bibliographic Details
Published in:Chinese journal of polymer science 2010 (5), p.745-751
Main Author: Rong Cheng Hui-ying Wen Hong-fei Li Shi-chun Jiang Li-jia An Zhong-hua Wu
Format: Article
Language:English
Subjects:
介晶结构
同步辐射
最高人民检察院
结晶过程
聚乙二醇
聚合物结构
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Summary:Using synchrotron SAXS and WAXS, we investigated crystalline structures including crystallite size, lamellar thickness, long spacing of syndiotactic polypropylene （sPP） and poly（ethylene-co-octene） （PEcO） that crystallized from the sheared melt. The independence of the shear effects on the crystalline structures and the shear related lamellar orientation indicate the stable mesophase. Experiments on the different shear effects on polymer various crystalline structures confirm the multi-step polymer crystallization process.
ISSN:0256-7679
1439-6203