C_8-3(OH)-C_8型季铵盐双子表面活性剂微波合成工艺  

Microwave synthesis process of C_8-3(OH)-C_8 type cationic gemini surfactant ammonium salt

作　　者：李苑麟 熊德元[1] 丁世磊[1] 梁星原 梁娜 LI Yuan-lin;XIONG De-yuan;DING Shi-lei;LIANG Xing-yuan;LIANG Na(School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China)

机构地区：[1]广西大学化学化工学院,广西南宁530004

出　　处：《广西大学学报（自然科学版）》2018年第3期1242-1250,共9页Journal of Guangxi University（Natural Science Edition）

基　　金：广西自然科学基金资助项目(2016GXNSFAA380304);广西石化资源加工及工程强化技术重点实验室课题资金(AE040195)

摘　　要：为了高效制备季铵盐双子表面活性剂,以N,N-二甲基辛胺、环氧氯丙烷、盐酸为原料,采用微波合成了双子表面活性剂N,N'-双(辛烷基二甲基)-2-羟基-1,3-氯化丙二铵盐(C_8-3(OH)-C_8·2Cl^-),通过正交实验对其合成反应条件进行了优化。结果表明,以异丙醇作溶剂,反应时间140 min,溶剂体积15 mL,微波功率64 W,N,N-二甲基辛胺与环氧氯丙烷摩尔比2.1∶1,双子表面活性剂产率为75.1%,反应时间比传统给热工艺缩短78.8%,产率提高25.0%。In order to prepare cationic gemini surfactant ammonium salt efficiently,an ammonium gemini surfactant（ C_8-3（OH）-C_8·2 Cl^-） was synthesized with N,N-Dimethyloctylamine,epichlorohydrin and hydrochloric acid as raw materials under microwave condition. The reaction conditions were optimized by orthogonal experiments. The results showed that under the conditions of isopropanol as solvent,reaction time 140 min,solvent volume 15 mL,microwave power 640 W,n（ N,N-Dimethyloctylamine） ∶ n（ epichlorohydrin） = 2. 1 ∶ 1,the yield of C_8-3（OH）-C_8·2 Cl^- was increased by 25%,upto 75. 1%,and the synthesis time was reduced by 78. 8% comparing with that of the traditional heating process.

关 键 词：N N'-双(辛烷基二甲基)-2-羟基-1 3-氯化丙二铵盐 微波合成 表面活性剂 

分 类 号：TQ217[化学工程—有机化工]