摘要
用差示扫描量热分析（ＤＳＣ）和宽角Ｘ＿射线衍射（ＷＡＸＤ）等方法研究了离子含量为２．２×１０－２摩尔分数的磺化聚苯乙烯锌盐（ＺｎＳＰＳ）离聚体对间规聚苯乙烯（ｓＰＳ）结晶的共混效应．结果表明，在所研究的共混物比例组成范围内，虽然ｓＰＳ的结晶速率随ＺｎＳＰＳ混入量的增多而下降，但ｓＰＳ的结晶成核生长方式，总结晶程度和结晶规整度等则基本上不受ＺｎＳＰＳ的影响．代表ｓＰＳβ晶型晶体的特征衍射峰强度随ＺｎＳＰＳ混入量的增多而下降，表明ＺｎＳＰＳ的混入使ｓＰＳβ晶型晶体的生长受到抑制。
The blending effects of zinc salts of sulfonated polystyrene (ZnSPS) ionomers containing 2.2×10 -2 mole percent sulfonate groups on the crystallization of syndiotactic polystyrene (sPS) have been studied by DSC and WAXD. The results showed that in the range of the blend's compositions, the crystallization rate of sPS decreased with increasing the content of ZnSPS, but the nucleation and growing mechanism of sPS crystals, the crystallinity of sPS and the perfection of sPS crystals were not basically influenced by the ZnSPS. The intensity of the sPS β crystalline diffraction peak (2 θ=12.2°) decreased by increasing the content of ZnSPS which indicated that the growth of the β_form crystal was restrained by blending with the ZnSPS. The percent α crystal form increased relatively with the increase of the content of ZnSPS.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1999年第2期94-99,共6页
Journal of South China University of Technology(Natural Science Edition)
关键词
间规聚苯乙烯
离聚体
共混效应
结晶
聚苯乙烯
syndiotactic polystyrene
zinc salt of sulfonated polystyrene ionomer
blending
crystallization
