弱碱性丙烯酸离子交换树脂的合成试验研究  

Study on Synthetization of Weak Alkaline Acrylic Resin

作　　者：仇月双[1] 

机构地区：[1]核工业北京化工冶金研究院,北京101149

出　　处：《湿法冶金》2013年第2期109-112,共4页Hydrometallurgy of China

摘　　要：研究了以丙烯酸甲酯为单体、二乙烯苯为交联剂,通过悬浮聚合和胺化反应合成大孔弱碱性丙烯酸离子交换树脂。结果表明:悬浮聚合过程中,水相氯化钠质量浓度越高,丙烯酸甲酯-二乙烯苯白球合格率越高;氯化钠质量浓度为300g/L时,白球合格率达90%。胺化反应过程中,四乙烯五胺加入量、反应温度、反应时间和溶胀剂对树脂化学交换容量有影响,在四乙烯五胺用量为丙烯酸甲酯用量2.5倍、反应温度125℃、反应时间13h、以二甲基甲酰胺为溶胀剂条件下,所合成的丙烯酸弱碱性树脂的化学交换容量为12.4mmol/g。A weak alkaline acrylic ion exchange resin was systhesized using acrylate as monomer and divinylbenzene as cross-linking agent by suspension polymerization. The result showed that the concentration of sodium chlorid in water phase affects the polymerization of crylate-divinylbenzene white bead. When the concentration of sodium chloride is 300g/L, the recovery rate of white bead is higer than 90%. The amination reaction conditon of white bead was studied. Under the conditions of temperature of 125℃ ,reaction time of 13 hours,dimethyl formamide as sweller,the mole number of amine to mole number of acrylate of 2.5,the exchange capacity of resin is 12.4 mmol/g.

关 键 词：丙烯酸甲酯 弱碱性树脂 化学交换容量 

分 类 号：TQ322.4[化学工程—合成树脂塑料工业]