摘要
本文用DSC和FT-IR方法研究了PET/苯乙烯-丙烯酸钠共聚物共混体系的相溶性、等温结晶动力学、组成、温度等因素对结晶速率、结晶度等结晶行为的影响,并初步探讨了离聚物对PET的作用。
The miscibility and crystallization behaviour of blends of poly (ethylenc terephthalate) with poly(styrene-co-sodium acrylate) (ST-SA) were investigated by using DSC and FT-IR techniques. The ionomer ST-SA was found to have both nucleating and blending effects on PET. Not only the ionomer accelerated the crystallization of PET, but also improved the miscibility, forming a partial miscible two-phase system in the amorphous phase, Crystallinity data from both DSC and FT-IR measurements showed that the crystallinity of PET was almost not affected by blending of the poly (styrene-co-sodium acrylate) at the equilibrium state. Avrami plot indicated that the secondary crystallization increased with the increase of the content of poly (styrene-co-sodium acrylate) in comparison with pure PET.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第5期511-514,共4页
Chemical Journal of Chinese Universities
关键词
PET
离聚物改性
结晶行为
Poly(styrene-co-sodium acrvlatc), Poly(Ethylcnc teivphthalatc), Crystallization behaviour
