超声无皂乳液聚合制备AMPS/MMA二元共聚微球  

Preparation of AMPS/MMA Copolymer Microspheres via Ultrasonic Emulsifier-free Emulsion Polymerization

作　　者：王艳丽[1] 谭德新[2] 闵凡飞[1] 徐初阳[1] 张宏艳[1] 

机构地区：[1]安徽理工大学材料科学与工程学院 [2]安徽理工大学化学工程学院,淮南232001

出　　处：《应用化学》2009年第7期866-868,共3页Chinese Journal of Applied Chemistry

基　　金：教育部科技基金重点项目(206064);安徽理工大学引进人才基金(2007yb86);安徽省高校自然科学基金资助项目(KJ2009B0542;KJ2009B1202)

摘　　要：在不加任何引发剂和乳化剂的条件下,用超声辐射无皂乳液聚合合成了AMPS/MMA二元共聚微球,用FTIR、TGA-DSC、TEM和粒度分析仪等测试技术对产物结构和热性能分别进行了表征和测试,并初步探讨了聚合反应机理。结果表明,超声波功率为200W,在45℃反应75min后转化率达83%,合成得到的高分子微球分散均匀,粒径在0.77μm左右,Tg为120℃。AMPS （2-acrylamido-2-methylpropanesulfonicacid）/MMA （ methyl methaerylate） copolymer micro- spheres were prepared without initiator or emulsifier by ultrasonic irradiation emulsifier-free emulsion polymerization. The samples were characterized and tested by FTIR, TGA-DSC, TEM and Zeta-sizer, and the reaction mechanism of the copolymerization was studied as well. The results show that the monomer conversion was 83% in 75 minutes at a power output of 200 W and 45 ℃. The microspheres possess a good dispersity, a uniform size with a diameter of O. 77 μm and a Tg of 120 ℃.

关 键 词：超声辐射 无皂乳液聚合 丙烯酰胺基甲基丙磺酸 甲基丙烯酸甲酯 高分子微球 

分 类 号：O633.3[理学—高分子化学]