Citation: Rong Cheng, Hui-ying Wen, Hong-fei Li, Shi-chun Jiang, Li-jia An, Zhong-hua Wu. SYNCHROTRON INVESTIGATION ON MESOMORPHIC STRUCTURE OF sPP AND POLY(ETHYLENE-CO-OCTENE) IN THEIR INITIAL CRYSTALLIZATION STAGE[J]. Chinese Journal of Polymer Science, ;2010, 28(5): 745-751. doi: 10.1007/s10118-010-9130-x shu

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

Received Date: 2 September 2009
Revised Date: 2 December 2009

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.
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