作　　者： ; ; ; ; ;

机构地区： 茂名学院化学与生命科学学院

出　　处： 《现代化工》 2010年第7期38-40,共3页

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

领　　域： [化学工程]