摘要
以三羟甲基丙烷（ＴＭＰ）、丙烯酸（ＡＡ）为原料，Ｄ７２大孔强酸型阳离子交换树脂为催化剂，苯为水夹带剂，合成三羟甲基丙烷三丙烯酸酯（ＴＭＰＴＡ）．考察反应温度、原料配比、催化剂用量、反应时间等因素对产品酯化度的影响；初步探讨了不同脱水方式及阻聚剂对酯化反应以及粗产物的不同纯化方式对产品丙烯酸含量的影响；选出了ＴＭＰＴＡ的最佳合成条件．最终产率７０％，产品为浅黄色透明液体，＝．６６６９，２３℃时粘度４２３ｍＰａ·ｓ．
rimethylolpropane tris-acrylate (TMPTA) has been obtained by the reaction of trimethylolpropane (TMP) with acrylic acid (AA) in the presence of canon exchange resin and benzene. The effects of reaction temperature. ratio of IMP to AA. amount of catalyst and reaction time on the ester value and yield of the product were investigated. The success of this esterfication is dependent on the method of water-moving and the kind of inhibitor. The best conditions for the synthesis of TMPTA has been obtained. The TMPTA obtained in this process is pale yellowish and clear, The yield is about 70%.
出处
《天津大学学报》
EI
CAS
CSCD
1995年第3期403-408,共6页
Journal of Tianjin University(Science and Technology)
关键词
三羟甲基丙烷
三丙烯酸酯
离子交换树脂
合成
trimethylolpropane, trimethylolpropane tris-acrylate, ion exchange resin, acrylic acid
