New initiation system for polymerization of acryl acid①
来源期刊:中南大学学报(英文版)2005年第2期
论文作者:李海普 钟宏 陈启元 尹周澜
文章页码:129 - 133
Key words:initiation system; polymerization; acryl acid; redox pair
Abstract: The redox initiation system for polyacrylate sodium of high molecular mass was designed and its effect with varying component dosage on the degree of polymerization was investigated. The results show that the proper type and amount of inorganic salt, as well as amine initiator, are conductive to the increase of degree of polymerization. The fine ingredient of the initiation system is as follows:the dosages of amine, persulphate and inorganic salt are 0.75%, 0.10% and 1.00% by mass based on acryl acid respectively, the molar ratio of sulphite to the persulphate is 1∶1. Under such conditions the degree of polyacrylate can reach 7.43×107with a acceptable polymerization time for industrial production.