PMMA/PAN核-壳粒子制备工艺研究  

STUDY ON PREPARATION OF PMMA/PAN COMPOSITE PARTICLES

作　　者：于彤[1] 杨俊和[1] 王霞[1] 高楠[1] 

机构地区：[1]上海应用技术学院,上海硕士生200235

出　　处：《煤炭转化》2005年第2期88-91,共4页Coal Conversion

基　　金：国家自然科学基金资助项目 (5 0 2 73 0 2 0 ;5 0 473 0 64 )

摘　　要：加入适量的引发剂,通过无皂乳液聚合,以聚甲基丙烯酸甲酯( PMMA)核体为种子乳液,制备了PMMA/PAN核-壳乳液.实验中分别对引发剂量、丙稀腈( AN)滴加量对PMMA/PAN壳层厚度及其粒径和粒径分布的影响进行了较详细的研究,确定了种子乳液聚合法制备PMMA/PAN核-壳结构聚合物粒子的实验方法及条件.通过激光粒度仪、扫描电镜和透射电镜对核-壳粒子的形态结构进行了表征,证明了PMMA/PAN复合粒子的核-壳结构.A soap-free latex of the methyl methacrylate (MMA)initiated by some initiator was prepared.Mono-dispersed PMMA/PAN core-shell morphology composite particles were prepared by emulsifier-free seeds emulsion polymerization in which soap-free latex acted as core.The effects of the initiator,amount of PAN on the particle size and particle size distributions of the latex were discussed in detail.Morphologies of mono-dispersed PMMA latex particles and PMMA/PAN composite particles were characterized by laser particle size instrument,SEM and TEM,core-shell morphology of PMMA/PAN composite particles were proven.

关 键 词：无皂乳液聚合 核壳结构 粒径及其分布 

分 类 号：TQ203.3[化学工程—有机化工]