双-[γ-(三乙氧基硅)丙基]-四硫化物水相合成方法的研究  

Preparation of Bis-(triethoxysilylpropyl) tetrasulfide in Aqueous Phase

作　　者：张磊[1] 杨春晖[1] 李振湖[1] 张巨生[1] 王进福[1] 

机构地区：[1]哈尔滨工业大学应用化学系,哈尔滨150001

出　　处：《有机硅材料》2008年第2期76-79,共4页Silicone Material

基　　金：黑龙江省重大攻关项目(2006G0967-00)

摘　　要：以γ-氯丙基三乙氧基硅烷为原料,在水相中通过相转移催化合成了双-[γ-(三乙氧基硅)丙基]-四硫化物(Si-69)。讨论了反应温度、γ-氯丙基三乙氧基硅烷与多硫化钠的量之比、相转移催化剂的用量等对合成反应的影响。水相中合成Si-69的较佳工艺为:γ-氯丙基三乙氧基硅烷与多硫化钠的量之比为2.1∶1,相转移催化剂的用量为γ-氯丙基三乙氧基硅烷质量的2%,反应温度80℃,可制得硫含量高于22.8%,纯度高达95%以上的Si-69。The bis - （triethoxysilylpropyl） tetrasulfide is a sulfur - containing organosilane coupling agent, which is an important additive in the advanced rubbers. In this paper, his - （triethoxysilylpropyl） tetrasulfide is synthesized in the aqueous phase as compared to the traditional methods. The reaction temperature, the mol ratio of chloropropyl triethoxy silane with pohsulfide, the mass of phase transfer catalyst and some other conditions are studied and optimum conditions are determined. Under these conditions, final product with higher sulfur content, higher conversion rate （more than 95% ） , good appearance and longer storage time is obtained.

关 键 词：双-[γ-(三乙氧基硅)丙基]-四硫化物 多硫化物 相转移催化 橡胶 

分 类 号：O627.41[理学—有机化学]