有机硅氧烷改性St/BA/AA三元共聚乳液的制备  

Preparation of Organic Siloxane Modified St/BA/AA Ternary Copolymerized Emulsion

作　　者：赵月 裴世红 王梓旭 

机构地区：[1]沈阳化工大学化学工程学院,辽宁沈阳110142

出　　处：《合成化学》2017年第10期836-839,共4页Chinese Journal of Synthetic Chemistry

基　　金：辽宁省教育厅创新团队基金资助项目(LT2010086)

摘　　要：采用核壳乳液聚合法,制备了乙烯基三乙氧基硅烷(VTES)改性的St/BA/AA三元共聚乳液,其结构经FT-IR确证。研究了VTES用量、乳化剂用量及配比和引发剂用量对单体转化率和粒径的影响。结果表明:在最优条件[48%St,48%BA,4%AA,1%N-MA,4%VTES,8%乳化剂(OP-10/SDS=1/3),0.8%引发剂]下,单体转化率为95.8%,平均粒径242 nm。并研究了改性St/BA/AA乳胶膜(1)的耐溶剂性和铅笔硬度。结果表明:1具有良好的耐溶剂性,铅笔硬度为2H。The organic siloxane modified ST/BA/AA ternary copolymerized emulsion was prepared by core-shell emulsion polymerization. The structure was confirmed by FT-IR. The effects of dosage of vinyl triethoxy silane, initiator and emulsifier （ratio） on monomer conversion and particle size were investigated. The results indicated that the monomer conversion was 95.8% and average particle size was 242 nm, under the optimized reaction conditions [ 48% St, 48% BA, 4% AA, 1% N-MA, 4% VTES, 8% emulsion （ OP-10/SDS = 1/3） , 0.8% initiator]. The solvent resistance and pencil hardness of modified St/BA/AA emulsion thin film（l） were studied. The results showed that 1 exhibited good solvent resistance and pencil hardness was 2H.

关 键 词：有机硅氧烷 改性St/BA/AA乳液 制备 单体转化率 耐溶剂性 铅笔硬度 

分 类 号：TQ630.7[化学工程—精细化工] O63[理学—高分子化学]