促进剂DBTU合成方法的改进研究及表征  

Study on improved synthesis and characterization of accelerator DBTU

作　　者：季振青[1] 郭睿[1] 苟文亮[1] 

机构地区：[1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安710021

出　　处：《化学试剂》2010年第6期541-544,共4页Chemical Reagents

摘　　要：对原有生产工艺进行改进,探索了缚酸剂对反应的影响,确定选用性价比优异的氢氧化钠作为此类反应的缚酸剂,使标题化合物的收率由61%提高到80.5%,进一步探索出实验最佳条件：正丁胺、二硫化碳、氢氧化钠的物质的量配比为2.2∶1∶1.1,正丁胺水溶液浓度为10%,室温反应1.25 h,然后加热到90~100℃回流4 h,产物经IR、1HNMR、元素分析进行了结构表征。The existing synthesis method was improved by using sodium hydroxide as the acid-binding agent,which was cheaper in production cost and could increase the yield of title compound from 61% to 80.5%,with the best experimental conditions being determined as follows：a n-butylamine,carbon disulfide,Sodium hydroxide molar ratio of 2.2∶1∶1.1,and a n-butylamine concentration of 10%.The reaction took place at room temperature for 1.25 h,and then the reaction mixture was heated to 90～100 ℃ followed by refluxing for 4 h.The product structure was verified by IR,1HNMR,and elemental analysis.

关 键 词：橡胶促进剂DBTU 缚酸剂 抗臭氧剂 工艺改进 最佳条件 表征 

分 类 号：TQ341.249[化学工程—化纤工业]