摘要
采用种子乳液聚合法制备了聚丙烯酸丁酯（PBA）乳液，然后通过第二单体甲基丙烯酸甲酯的预溶胀法聚合制备了PBA／聚甲基丙烯酸甲酯（PMMA）乳液，用激光散射粒度仪和透射电子显微镜对乳液粒径和结构进行了表征。结果表明，当乳化荆十二烷基硫酸钠质量分数为丙烯酸丁酯的1.5％时，可制备粒径为53.6nm且分布窄的PBA种子乳液；通过调整补加乳化剂、单体与种子乳液的用量，可制得粒径为53.6-443.8nm的一系列单分散PBA乳液；PBA／PMMA乳液具有完善的核壳结构，且在核壳两相间存在着一个过渡层。
The poly （ butyl acrylate） （PBA） emulsion was synthesized by seed emulsion polymerization, and the PBA/poly （methyl methacrylate ） （PMMA） core-shell emulsion was prepared by preswelling the second monomer methyl methacrylate in the PBA emulsion. Particle diameter and structure of the emulsion were detected by laser scatter particle analyzer and transmission electron microscope . The results showed that when mass fraction of emulsifier was 1.5% of monomer, PBA seed emulsion with particle size of 53.6 nm and narrow distribution was prepared. A series of PBA emulsion with particle size from 53.6 to 443.8 nm were gained by adjusting amount of the supplementing emulsifier, seed emulsion and butyl acrylate. The prepared PBA/ PMMA had perfect core-shell structure and there was a transition layer between the core and shell layers.
出处
《合成橡胶工业》
CAS
CSCD
2009年第6期454-458,共5页
China Synthetic Rubber Industry
基金
上海市重点学科建设资助项目(B502)
关键词
种子乳液聚合
聚丙烯酸丁酯
预溶胀
聚甲基丙烯酸甲酯
粒径
核壳结构
seed emulsion polymerization
poly（butyl acrylate）
pre-swelling
poly （ methyl methacrylate）
particle size
core-shell structure
