摘要：以插层聚合的方法并实验证实 ,成功地合成了PM MA/Benton纳米复合材料。研究了 3种复合体系 :(1)单体MMA ,引发剂AIBN与钠基膨润土直接共混预聚合体系 ;(2 )钠基膨润土经长链烷基季铵盐改性处理后 ,再与单体MMA混合 ,进行预聚 ;(3)先将长链烷基季铵盐与单体混合预聚 ,再加入膨润土继续聚合。将以上 3种预聚物经浇注、硬化、熟化而制得有机玻璃板。通过X射线衍射、热失重、热分析实验研究了其结构特征和结晶行为 ;通过热变形维卡温度测定和氧指数测量对其性能进行了表征
关键词：纳米复合材料;聚甲基丙烯酸甲酯;膨润土;蒙脱土;插层;
Abstract：By the method of intercalation ploymerize，three mix systems are studied．T he first method is that monomer MMA，solicitation AIBN and Na＋ － benton are mixed for severeus hours，then copolymerize directly；the second methodfree copolymerization of MMA with Na＋－benton previously treated wity quaternany ammonium salt；the third method is based on the direct inter －action of Na＋ －benton with copolymers of MMA with quaternany ammonium salt．T hese pre－polymer is molded ossified，removed glass board and the PMMA／benton nanocomposite is obtained．T he struture of the adducts is determined by XRD and TG analysis；the heat resistant propery，the burning property and tensile property are determined also．The PMMA／benton nanocomposite is well synthesed．
Key words：nanocomposite；PMMA；benton；montmorillonite； intercalation
