季铵盐改性硅酸盐对bis-GMA树脂材料聚合特征的影响  

Effect of Quaternary Ammonium Modified Silicates on the Polymerization Properties of bis-GMA RESIN

作　　者：邱红[1] 张明生[1] 

机构地区：[1]华中科技大学同济医学院附属同济医院肿瘤科,武汉430030

出　　处：《医药导报》2013年第10期1270-1273,共4页Herald of Medicine

基　　金：国家自然科学基金(30801369)

摘　　要：目的通过溶胶-凝胶法合成季铵盐改性硅酸盐可聚合抗菌单体,将该抗菌单体整合入双酚A双甲基丙烯酸缩水甘油酯(bis-GMA)树脂,测试树脂的聚合特征。方法以正硅酸四乙酯与有机硅烷为前体,合成部分水解的季铵甲基丙烯酰氧基硅酸盐(QAMS-3PH);利用傅里叶变换红外光谱仪和LVDT直线位移传感器装置分别检测树脂聚合过程中的单体转化率和聚合收缩。结果 QAMS-3PH作为bis-GMA的稀释单体,成功降低树脂聚合收缩率,但并未降低树脂的转化率。结论抗菌性QAMS-3PH可作为bis-GMA的稀释单体,改性树脂的聚合性能。Objective To synthesize polymerizable antimicrobial monomer through a silane-based sol-gel route and characterize the polymerization properties of bis-GMA resin incorporated with aforementioned monomer. Methods Tetraethoxysilane and trialkoxysilanes were used as precursors to synthesize partially hydrolyzed quaternary ammonium methacryloxy silicate （ QAMS-3pH ）. The monomer conversion and cure shrinkage of bis-GMA resin were characterized. Results QAMS-3pH decreased the polymerization shrinkage of bis-GMA resin, without affecting the monomer conversion. Conclusion QAMS-3PH, as a diluent monomer for bis-GMA resin, may contribute to improved mechanical properties of his-GMA resin system.

关 键 词：有机改性硅酸盐 季铵盐 聚合 

分 类 号：R988.2[医药卫生—药品]