聚丙烯酸铵水溶液聚合研究  

Study on Water Solution Polymerization of Ammonium Polyacrylate

作　　者：林波[1] 陈文汨[1] 梁高喜 

机构地区：[1]中南大学冶金与环境学院,湖南长沙410083 [2]河南中原黄金冶炼厂有限责任公司,河南三门峡472000

出　　处：《广州化工》2014年第11期89-92,共4页GuangZhou Chemical Industry

摘　　要：采用水溶液聚合法合成聚丙烯酸铵,考察了温度、EDTA、引发剂、NaCl、聚合时间、链转移剂以及单体浓度对聚丙烯酸铵相对分子量的影响。结果表明,最佳聚合条件为:反应温度30℃,EDTA用量0.03%,引发剂用量0.03%,NaCl用量0.6%,反应时间3 h,单体浓度50%,链转移剂用量0.7%。在此条件下,合成的聚丙烯酸铵相对分子量为1 905万,且具有良好的溶解性能。Ammonium polyacrylate was synthesized by water solution polymerization.The influence of temperature , EDTA, initiator, polymerization time, chain transfer agent and monomer concentration on relative molecular mass of ammonium polyacrylate was investigated.Results showed that the optimal polymerization conditions were as follows：reaction temperature was 30℃, EDTA amount 0.03%, initiator amount 0.03%, NaCl amount 0.6%, reaction time was 3 h, monomer concentration 50%, and chain transfer agent amount 0.7%.Under these conditions , the relative molecular mass of ammonium polyacrylate was 19.05 million, and its solubility was fine.

关 键 词：聚丙烯酸铵 水溶液聚合 链转移剂 

分 类 号：TQ314.22[化学工程—高聚物工业]