Solid phase transition of syndiotactic polystyrene in supercritical CO2

被引：0
|
作者：
Li, Yu-Ying [1 ]
He, Jia-Song [1 ]
机构：
[1] State Key Lab. of Engineering Plast., Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
来源：
Chinese Journal of Polymer Science (English Edition) | 2002年 / 20卷 / 03期
关键词：
Carbon dioxide - Phase transitions - Polycrystalline materials - Pressure effects - Supercritical fluids - Thermal effects;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Solid phase transition of the α form crystals to the β form crystals in syndiotactic polystyrene (sPS) samples has occurred in supercritical CO2. This transformation is different from those detected under other conditions. The effects of some factors (e.g. time, temperature, and pressure) on the solid phase transformation of sPS in supercritical CO2 were analyzed in detail. Experimental results show that longer time, higher temperature or higher pressure favors the transformation of the α form crystals to the β form crystals.
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页码：191 / 196
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