作　　者： ; ; ; ; ;

机构地区： 广州大学化学化工学院化学系

出　　处： 《高分子通报》 2007年第3期37-40,共4页

摘　　要： 以二氧化硅为起始原料,与乙二醇、氢氧化钾反应,生成高活性的五配位硅钾化合物。以此为原料,与对苄氯苯乙烯反应,制得含双键官能团的四配位硅单体。然后与甲基丙烯酸β-羟乙酯进行自由基共聚合,得到含硅支链的共聚物。最后用IR、EA、EDS、TG、DSC、GPC等对四配位硅单体及其共聚物作了结构表征。IR表明,四配位硅单体在1630cm-1附近的C=C伸缩振动吸收峰在共聚物中消失。TG表明,共聚物在343℃开始分解。分子链间通过羟基可以交联成体型结构,具有不溶不熔的特性。用DSC测得共聚物的玻璃化温度为48.1℃。 High reactive penta-coordinated organic silicon was prepared via glycol and potassium hydroxide. Tetra-coordinated silicon monomer with a double of this penta-coordinated silicon with 4-vinylbenzyl chloride. Then the copolymer prepared, by the free radical polymerization of this tetra-coordinated silicon the reaction of silica with ethylene bond was produced by the reaction with silicon-containing branch was monomer with HEMA. The tetra- coordinated silicon monomer and its copolymer were characterized by FTIR, EA, EDS, TG, DSC, GPC, etc. An adsorption band of IR spectrum at 1630 cm^-1 for C = C was indicated for tetra-coordinate silicon monomer, but disappeared for the copolymer. TG analysis showed the co-polymer began losing weight at 343 ℃. The glass transition temperature was 48.1 ℃.

关 键 词： 配位硅化合物 自由基聚合 甲基丙烯酸 羟乙酯

领　　域： [化学工程]