Morphology of syndiotactic polystyrene as examined by small-angle X-ray scattering

被引:0
作者
Barnes, JD
McKenna, GB
Landes, BG
Bubeck, RA
Banks, D
机构
来源
ANTEC '96: PLASTICS - RACING INTO THE FUTURE, VOLS I-III: VOL I: PROCESSING; VOL II: MATERIALS; VOL III: SPACIAL AREAS | 1996年 / 42卷
关键词
syndiotactic polystyrene; morphology; small-angle X-ray scattering;
D O I
暂无
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Small Angle X-Ray scattering (SAXS) studies have been carried out on injection molded syndiotactic polystyrene (SPS) at room temperature and at elevated temperatures up to 290 degrees C. Features indicating lamellar crystallinity were very weak or entirely absent at room temperature, becoming increasingly intense above the glass transition temperature (T-g) for this material. A background scattering whose intensity: was roughly proportional to q(-2), where q is the scattering momentum transfer, was present throughout the temperature range. We suggest that these results indicate that SPS materials formed in this way are three-phase systems, with an amorphous phase, a crystalline phase, and a grain boundary phase.
引用
收藏
页码:1532 / 1536
页数:5
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