己二酸-乙二醇单丁醚酯的合成及在丙烯酸酯橡胶中的应用  

Synthesis and application in acrylic rubber of 2-butoxyethanol esters of hexanedioic acid

作　　者：宋林勇[1] 贺楠楠[1] 周艺峰[1] 聂王焰[1] 

机构地区：[1]安徽大学化学化工学院安徽省绿色高分子材料重点实验室,安徽合肥230039

出　　处：《合成橡胶工业》2011年第4期287-290,共4页China Synthetic Rubber Industry

基　　金：安徽省高等学校自然科学研究重点项目(KJ2009A51);安徽大学青年科学基金资助项目(QN2009007A);安徽大学"211工程"三期建设学术创新团队经费资助项目;安徽大学博士启动经费资助项目

摘　　要：用对甲苯磺酸作催化剂,以己二酸与乙二醇单丁醚为原料,通过酯化反应合成了己二酸-乙二醇单丁醚酯增塑剂,考察了反应时间、醇酸摩尔比及催化剂和带水剂甲苯的用量对酯化反应的影响,通过傅里叶变换红外光谱及核磁共振氢谱对产物进行了表征,并研究了该增塑剂在丙烯酸酯橡胶中的高低温增塑性能。结果表明,酯化反应的最佳反应条件为反应时间180 min、醇酸摩尔比2.5、催化剂和带水剂的质量分数分别是醇与酸总用量的0.5%和30%;添加10份该增塑剂可使丙烯酸酯橡胶的脆化温度达到-35.0℃,且在150℃下能保持较好的物理机械性能。Plasticizer,2-butoxyethanol ester of hexanedioic acid,was synthesized by esterification of hexanedioic acid and 2-butoxyethanol with toluene sulfonic acid as catalyst,the effects of reaction time,mole ratio of alcohol to acid and level of catalyst and water-carrying agent toluene on the esterification were investigated,the synthesized products was characterized by Fourier transform-infrared spectroscopy and proton nuclear magnetic resonance spectroscopy,and the high and low temperature plasticizing ability was studied in detail.The results showed that the optimal condition for esterification was as follows： reaction time 180 min,mole ratio of alcohol to acid 2.5,mass fraction of catalyst and water-carrying agent in total amount of alcohol and acid 0.5% and 30% respectively.The brittlness temperature of acrylic rubber could reach-35 ℃ when the amount of the plasticizer was 10 phr,and the mechanical property was kept well at 150 ℃.

关 键 词：己二酸-乙二醇单丁醚酯 增塑剂 丙烯酸酯橡胶 脆化温度 热老化性能 

分 类 号：TQ330.38[化学工程—橡胶工业]