超声辐照聚合制备复合乳液—影响反应的几个因素  

Preparation of PMMA/nano-ZnO composite latex by ultrasonic irradiation polymerization-its several influence factors

作　　者：宁汉生[1] 王晓香[1] 于跃芹[1] 

机构地区：[1]青岛科技大学化学与分子工程学院,山东青岛266042

出　　处：《胶体与聚合物》2008年第3期1-3,6,共4页Chinese Journal of Colloid & Polymer

基　　金：山东省自然科学基金(Y2006B10)资助项目

摘　　要：以V-50为引发剂采用超声辐照乳液聚合制备PMMA/nano-ZnO复合乳液。引发剂用量、乳化剂用量、乳化剂配比、纳米氧化锌的性质、用量以及反应温度、单体含量是本体系超声辐照聚合反应的重要影响因素。这些参数的不同导致了聚合反应的诱导期、转化率不同。含有纳米氧化锌的乳液聚合体系,纳米氧化锌影响了聚合过程中的成核,有未改性纳米氧化锌参与的聚合体系的主要成核方式仍然是胶束成核与均相成核。The PMMA/nano-ZnO compound emulsion was produced by ultrasonic irradiation emulsion polymerization with V-50 as initiator. The ultrasonic irradiation emulsion polymerization was largely influ- enced by the ratio and amount of emulsifiers, the dosage of initiator, nano-ZnO, reaction temperature and the amount of monomer. The different parameters led to different induction periods and conversions. Nano-ZnO had an impact on nucleation process in emulsion polymerizing system. The main nucleation ways of the reac- tion system involving pristine nano-ZnO were micelle-nucleation and homogeneous nucleation.

关 键 词：无机-有机复合材料 超声辐照 乳液聚合 纳米氧化锌 

分 类 号：TQ316.334[化学工程—高聚物工业] TQ530