烷基化纳米SiO_2/MMA核壳无皂乳液聚合、产物表征及其应用  

EMULSIFER-FREE CORE-SHELL POLYMERIZATION OF ALKYLAED-NANOSILICA/MMA, ANALYSIS AND APPLICATION OF PRODUCTS

作　　者：钱翼清[1,2] 范牛奔[1,2] 

机构地区：[1]南京化工大学材料科学与工程学院 [2]高分子材料工程国家重点实验室,江苏南京210009

出　　处：《高分子材料科学与工程》2002年第4期69-73,共5页Polymer Materials Science & Engineering

基　　金：江苏省科委资金项目 (BJ980 6 2 );高分子材料工程国家重点实验室资助项目

摘　　要：以烷基化纳米 Si O2 为核 ,以 MMA为壳层单体 ,系统研究了纳米 Si O2 用量、MMA单体用量及加入方式、引发剂用量、聚合反应温度、分散相用量等因素对无皂乳液聚合反应的影响 ,通过 FT- IR和TGA表征了产物 ,通过 TEM证实了核壳结构粒子的存在 ,初步探讨了聚合机理。并将核壳粒子产物用于改性聚碳酸酯 (PC) ,其效果十分显著。The effects of many factors(amount of alkylaed nanosillica, MMA, initiator, and dispersing agent, temperature etc.) on emulsifer free polymerization were investigated. The polymeric product was analyzed by FT IR and TGA. The core shell structure was proved by TEM. In addition, polymeric mechanism was researched. As last, the core shell particles were applied into polycarbonate(PC). Its modification effectiveness is extraordinary notability.

关 键 词：烷基化 纳米SiO2/MMA 乳液聚合 产物表征 应用 甲基丙烯酸甲酯 无皂乳液聚合 核壳粒子 聚碳酸酯 改性 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业] TQ320.4