甲基丙烯酸甲脂和丙烯酸苄脂共聚物无皂水溶胶C.C.C.值和表面羧基含量的研究  

Study on C. C. C. Values and the Surface Carboxyl Contents of Methy1 Methacrylate and Benzyl Acrylate Copolymer Soap-free Water-Solubilized Colloids

作　　者：吕耀萍[1] 

机构地区：[1]江汉大学城建环保系,武汉430019

出　　处：《江汉大学学报》2000年第6期38-41,共4页Journal of Jianghan University

摘　　要：用溶液聚合法合成了三种ＡＡ含量不同的丙烯酸脂共聚物，通过滴加中和剂ＤＥＡＥ 而制成无皂水溶胶．用分光光度法测定其透光率，得出水溶胶临界电解质结果相吻合，水溶胶的稳定性随丙烯酸含量增加而提高。Three acrylic copolymers containing various amount of AA were prepared by solution polymerization. The soap-free water-solubilized colloids were obtained by driping neutralizer to neutralize AA in the copolymer. The water-solubilized colloids critical electrolyte polydeposit concentration values (C. C. C. values) have been shown by spectrophotometry to determine the transmissivity. The surface carboxyl contents have been determined by conductometric titration. It was found that most -COO locates on the particle surface and the surface -COO-increases with increasing AA content. The determing results of C. C. C. values and water-solubilized particle surface Carboxyl contents are identical. The stability of water-solubilized colloids increases with increasing acrylic acid content.

关 键 词：丙烯酸酯共聚物 无皂水溶胶 MMA BA 

分 类 号：TQ630[化学工程—精细化工] O647.11[理学—物理化学]