硫代二甘醇二豆蔻酸酯的合成及其性能研究  

A study on synthesis and characterization of dithiodiglycol dimyristictate

作　　者：黄敏[1] 周统武[1] 蒋达洪[1] 余梅[1] 杜辉[1] 

机构地区：[1]茂名学院化学与生命科学学院,广东茂名525000

出　　处：《现代化工》2010年第7期38-40,共3页Modern Chemical Industry

基　　金：广东省茂名市科技计划项目(201145)

摘　　要：以硫代二甘醇和豆蔻酸为原料,选用活性炭负载对甲苯磺酸为催化剂,二甲苯为带水剂,合成了抗氧剂硫代二甘醇二豆蔻酸酯。适宜工艺条件为:反应温度170～180℃,醇酸摩尔比为1.5∶1、催化剂用量为反应物总质量的1.0%、带水剂二甲苯用量30mL、反应时间2h。此工艺条件下硫代二甘醇二豆蔻酸酯的产率为97.3%。将产物应用于聚丙烯中,具有良好的抗氧化性能,并测试了熔体流动速率、拉伸强度、断裂伸长率和冲击强度。Using thiodiglycol and myristic acid as raw materials, p-toluenesulfonic acid supported on activated carbon as catalyst and xylene as water carrier, the antioxidant dithiodiglycol dimyristictate is synthesized. The suitable reaction conditions are obtained as follows： 170 - 180℃ as reaction temperature, mass ratio of catalyst to reactants of 1.0% ,1.5：1 of molar ratio of alcohol to acid,30 mL of xylene aswater entraine,2 hours of reaction time. Under those conditions the yield of dithiodiglycol dimyristictate can be up to 97. 3%. It is confirmed that the product has a good antioxidation property after applied into polypropene, and the mixture＇ s melt flow rate, tensile strength and elongation at break are tested.

关 键 词：硫代二甘醇 豆蔻酸 硫代二甘醇二豆蔻酸酯 抗氧剂 

分 类 号：TQ314.249[化学工程—高聚物工业]