1，6-己二醇二丙烯酸酯的合成

以1，6～己二醇、丙烯酸为原料，对甲苯磺酸与亚硫酸为催化剂，环己烷为带水剂，CuSO4／NaHSO4为复合阻聚剂，采用直接酯化法合成1，6-己二醇二丙烯酸酯。探讨了催化剂、带水剂、反应时间和温度以及酸醇比（丙烯酸／1，6-己二醇，摩尔比）对酯化反应的影响。研究结果表明，最佳的酯化反应条件为：丙烯酸／1，6-己二醇为2．5，催化剂用量（占原料总质量，％）为1．5％，带水剂用量（占原料总质量，％）为65％，反应时间为90min，反应温度为80—90℃。在此条件下，产物为无色透明油状液体，收率可达93．25％。

Synthesis of 1,6 -Hexanediol Diacrylate

Using 1,6 - hexanediol and acrylic acid as raw materials, p - toluenesulfonic acid and sulphurous acid as catalyst, cyclohexane as dehydrant, sodium acid sulfate and copper sulfate as composite inhibitor, 1,6 -hexanediol diacrylate was synthesized with direct esterification method. At the same time, the effects of catalyst, dehyrant, reaction time, reaction temperature and acid- alcohol ratio （acrylic acid/1,6 -hexanediol, molar ratio） were investigated. The optimum synthesis conditions were found acid - alcohol ratio 2.5, mass ratio of catalyst （ catalyst ： raw material） 1.5 %, mass ratio of dehydrant （dehydrant ： raw material） 65%, reaction time 90 min, and reaction temperature 80 -90 ℃. Under the optimum reaction conditions, the synthesized 1,6 - hexanediol diacrylate was colorless transparent liquid oil with high yield of 93.25 %.