当前位置:首页 > 研究成果 > 论文 > 代表性论著

Progress in Controlled Radical Polymerization: Materials and Applications,Chapter 4, pp 39-64. ”Synthesis and Characterization of PE-b-POEGMA Copolymers Prepared by Linear/Hyperbranched Telechelic Pol

作者: American Chemical Society(ACS) 
出版物: Pingwei Liu, Weiqiang Lu, Wen-Jun Wang,* Bo-Geng Li, Zhibin Ye,* Shiping Zhu* 
出版时间: 2012 
We report here a novel approach for making reversibly coagulatable and redispersible polyacrylate latexes by emulsion (co)polymerization of methyl methacrylate (MMA) using a polymeric surfactant, poly(2-(dimethylamino)ethyl methacrylate)10-block-poly(methyl methacrylate)14. The surfactant was protonated with HCl prior to use. The resulted PMMA latexes were readily coagulated with trace amount of caustic soda. The coagulated latex particles, after washing with deionized water, could be redispersed into fresh water to form stable latexes again by CO2bubbling with ultrasonication. The recovered latexes could then be coagulated by N2 bubbling with gentle heating. These coagulation and redispersion processes were repeatable by the CO2/N2bubbling.