摘要
以BPO为引发剂,通过悬浮固相接枝法,得到PP-g-(MAH/VAc)和PP-g-(MA/AA)接枝物,通过称重法和非水滴定法测得了接枝物的接枝率。红外光谱表明,单体都能接枝到PP上。SEM结果表明PP/PA6/PP接枝物共混体系中,PP-g-(MAH/VAc)的增容效果优于PP-g-(MA/AA),这主要是因为PP-g(MAH/VAc)在PP/PA6体系中起到反应性增容的作用,而PP-g-(MA/AA)仅起到物理缠结的作用。
Polypropylene graft copolymers,namely PP-g-（MAH/VAc） and PP-g-（MA/AA）,were prepared by a suspension polymerization process with benzoyl peroxide（BPO） as initiator.The graft ratio of polypropylene graft copolymers is attained by weighting method and nonaqueous titration.The IR spectra of the extracted PP graft copolymers showed that MAH-co-VAc and MA-co-AA chains were bonded to PP chains.SEM images indicated that compatibilization effect of PP-g-（MA/AA） on PP/PA6 blend was less effective than that of PP-g-（MAH/VAc）. It is because PP-g-（MAH/VAc） has an affect of reactive compatibilization in PP/PA6 blend and PP-g-（MA/AA） has an affect of physical entanglement in PP/PA6 blend.
出处
《精细与专用化学品》
CAS
2010年第12期8-12,共5页
Fine and Specialty Chemicals
关键词
聚丙烯
尼龙6
接枝共聚物
共混
增容
polypropylene
PA6
graft copolymers
blend
compatibilization
