二过碲酸合铜(Ⅲ)钾引发尼龙6接枝共聚合反应  

GRAFT COPOLYMERIZATION OF METHYL ACRYLATE ONTO NYLON-6 INITIATED BY POTASSIUM DITELLURATOCUPRATE(Ⅲ)

作　　者：刘盈海[1] 李胜贤[1] 周玮琪[1] 张建平[1] 张荣月[1] 邓奎林[2] 

机构地区：[1]河北大学化学与环境科学学院,河北保定071002 [2]中国科学院北京化学研究所,北京100061

出　　处：《高分子材料科学与工程》2006年第2期39-42,共4页Polymer Materials Science & Engineering

摘　　要：在碱性介质中以二过碲酸合铜(Ⅲ)钾-尼龙6为氧化还原引发体系,引发丙烯酸甲酯在尼龙6上发生接枝共聚合反应。测定了各种反应因素对接枝参数的影响,得到了高接枝效率的接枝共聚物。采用红外光谱、X射线衍射、扫描电镜对接枝共聚物的结构和性能进行了表征,并探讨了引发机理。通过实验表明了接枝共聚物在尼龙6/聚甲基丙烯酸甲酯、尼龙6/聚丙烯的共混体系中有很好的增容效果。The graft copolymerization of methyl acrylate onto nylon 6 using potassium ditelluratocuprate（Ⅲ）-nylon 6 redox system as initiator has been studied in alkaline medium. The effect of different factors on grafting parameters is investigated. The structure of the nylon 6 and graft copolymer have been determined by infrared （IR）, x-ray diffraction, scanning electron microscopy（SEM）. It is found that Cu（ Ⅲ ）-nylon 6 system is an efficient redox initiator for this graft copolymerization. A single electron transfer mechanism is proposed to explain the formation of radicals and the initiation. The SEM photographs show that the graft copolymer greatly improves the compatibility of the PA6/PMMA and PA6/PP blends.

关 键 词：二过碲酸合铜(Ⅲ)钾 尼龙6 丙烯酸甲酯 接枝共聚合 氧化还原引发 

分 类 号：TQ316.343[化学工程—高聚物工业]