摘要
利用苯乙烯(St)和3-异丙烯基-α,α-二甲基苄基异氰酸酯(TMI)的共聚物为起始剂,在催化剂己内酰胺钠(NaCL) 存在下,TMI中异氰酸官能团引发己内酰胺(CL)聚合,合成了接枝共聚物PS-g-PA6。进一步研究了相容剂PS-g-PA6存在下聚苯乙烯(PS)和尼龙6(PA6)共混体系的形态结构。结果表明:不论母体PS和分散相PA6的比例如何,只需少量的PS- g-PA6就可大幅减小分散相PA6的粒径。对于PS/PA6(90/10)共混体系,仅需加入1.50%(质量分数)的PS-g-PA6,分散相的粒径从没有加PS-g-PA6的2.5μm减小至0.3μm。
3-Isopropenyl-α,α-dimethylbenzyl isocyanate（TMI） and styrene （St） copolymer to initiate the activated anionic polymerization of ε-caprolactam （CL） were used to form a graft copolymer with PS as backbone and PA6 as graft （PS-g-PA6）. The results showed that while PS-g-PA6 was added to the PS/PA6 blend systems, the particle diameter of dispersed phase PA6 could decrease greatly irrespective of the ratio of matrix PS and dispersed phase PA6. For example, while 1.5% PS-g-PA6 was added to the blend systems of PS/PA6 （90/10）, the particle diameter of PA6 decreased to 0.3 μm from 2.5 μm without PS-g-PA6.
出处
《现代塑料加工应用》
CAS
北大核心
2005年第5期6-10,共5页
Modern Plastics Processing and Applications
