在超声条件下三乙胺替代三甲胺合成醚化剂GTA

Synthesis of Ether GTA from Triethylamine Instead of Trimethylamine under Ultrasonic Condition

以液体叔胺三乙胺作反应原料替代三甲胺，在超声条件下合成了环氧氯丙基_--AL基氯化铵（GTA），简化了合成工艺，使反应时间缩短了4h。最佳合成条件为：超声频率40kHz，反应温度25℃，n（环氧氯丙烷）：n（三乙胺）=1：1．5，反应液的pH值7～7．5，反应时间0．5h。合成的醚化剂GTA产率为97．61％，环氧值为91．57％，熔点138～140℃。

GTA （Glycidyl-triethylammonium chloride） was synthesized by using triethylamine instead of trimethylamine under ultrasonic condition. The reaction was under better controlled when liquid tertiary amine was used. The reaction time was decreased when ultrasonic technology was applied. The best conditions for the synthesis of GTA were ： ultrasound frequency was 40 kHz, the reaction temperature was 25℃, n （ EPIC ） ： （TEA） was 1： 1.5, pH value was 7 -7.5, the reaction time was 0. 5 h. The yield was 97.61% , epoxy value was 91.57%, melting point was 138- 140℃ .