Dispersion Polymerization in Supercritical Carbon Dioxide
Acrylic polymers such as poly(methyl methacrylate) (PMMA) and poly(2-ethylhexylacrylate) (PEHA) and other type of polymers such as polystyrene (PS) and poly(vinyl acetate) (PVAc), a precursor of poly(vinyl alcohol) (PVA), were synthesized by dispersion polymerization in supercritical CO2. Monasil PCA surfactant was used to stabilize polymer particles in the supercritical carbon dioxide. The effects of initiator and surfactant concentrations as well as the monomer concentration were investigated experimentally. Microparticles of PMMA were emulsified in water. The sizes of the resulting polymer particles were in the range of 2.6 ~ 4.2 m. By sonication the agglomerated polymer particles were disrupted to form small primary particles.
Dispersion Polymerization PMMA PS PEHA Poly(vinyl acetate) Supercritical carbon
Woo-Hyuck Choi Sang-Min Paek Won Soek Lyoo Seok-Kyun Noh Jae-Jin Shim
School of Display and Chemical Engineering School of Textiles Yeungnam University, 214-1 Dae-dong, Gyeongsan, Gyeongbuk 712-749, KOREA
国际会议
The 5th International Conference on Separation Science and Technology(第五届国际分离科学与技术会议)
北京
英文
2007-10-14（万方平台首次上网日期，不代表论文的发表时间）