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

Rong Cheng; Hui-ying Wen; Hong-fei Li; Shi-chun Jiang; Li-jia An; Zhong-hua Wu

doi:10.1007/s10118-010-9130-x

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

Papers | Updated：2021-06-21

- SYNCHROTRON INVESTIGATION ON MESOMORPHIC STRUCTURE OF sPP AND POLY(ETHYLENE-CO-OCTENE) IN THEIR INITIAL CRYSTALLIZATION STAGE
- Vol. 28, Issue 5, Pages: 745-751(2010)
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- DOI：10.1007/s10118-010-9130-x
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- Published：20 September 2010
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Rong Cheng, Hui-ying Wen, Hong-fei Li, et al. SYNCHROTRON INVESTIGATION ON MESOMORPHIC STRUCTURE OF sPP AND POLY(ETHYLENE-CO-OCTENE) IN THEIR INITIAL CRYSTALLIZATION STAGE[J]. 2010, 28(5): 745-751.
DOI：

Rong Cheng, Hui-ying Wen, Hong-fei Li, et al. SYNCHROTRON INVESTIGATION ON MESOMORPHIC STRUCTURE OF sPP AND POLY(ETHYLENE-CO-OCTENE) IN THEIR INITIAL CRYSTALLIZATION STAGE[J]. 2010, 28(5): 745-751. DOI： 10.1007/s10118-010-9130-x.

摘要

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.

Abstract

Using synchrotron SAXS and WAXS

we investigated crystalline structures including crystallite size

lamellar thickness

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