【作者】 俞奇勇； 顾雪萍； 冯连芳； 胡国华；

【Author】 YU Qi-Yong~a,GU Xue-Peng~a,FENG Lian-Fang~(a**),HU Guo-Hua~b (a State Key Laboratory of Chemical Engineering,Zhejiang University,Hangzhou 310027 b Laboratory of Chemical Engineering Sciences,CNRS-ENSIC-INPL, 1 rue Grandville BP 451,54001 Nancy,France)

【机构】 化学工程联合国家重点实验室,浙江大学化工系； Laboratory of Chemical Engineering Sciences,CNRS-ENSIC-INPL,1 rue Grandville BP451,54001 Nancy,France；

【摘要】 <正>聚合物共混能使两种或两种以上的聚合物混合在一起,得到综合性能优于任何单一组分的高分子材料。但是大多数聚合物是不相容的,直接混合很难提高它们的机械性能。因而,聚合物共混研究都聚焦于相容技术。相容剂的加入可以减小界面张力,增强混合组分间的粘更多还原

【Abstract】 Emulsification efficiency of graft copolymers in polystyrene(PS) and polyamide 6(PA6) blends were investigated in haake torque rheometer.A series of graft copolymers with PA6 as grafts and PS as backbone,denoted as PS-g-PA6,with different molecular structures and/or compositions were used as compatibilizers.The molecular structure of the PS-g-PA6 graft copolymer had a profound effect on its emulsification efficiency.The shorter the PS backbone(from 64 to 20kg/mol), the higher the emulsification efficiency in the PS/PA6(80/20) blends.But,the length of PS backbone had little effect on the emulsification efficiency in the PS/PA6(20/80) blends.PS-g-PA6 graft copolymer with long PA6 grafts had better emulsification efficiency.更多还原