二乙基苯甲基-3-(甲基二甲氧基硅)丙基氯化铵的合成及其性能  

Synthesis of Diethyl-benzyl-(methyldimethoxysilyl)propyl-ammonium Chloride

作　　者：李俊英[1] 李鹏[1] 姜继堃[2] 朱叙伟[2] 李天铎[2] 

机构地区：[1]山东轻工业学院化学工程学院,山东济南250353 [2]山东轻工业学院轻化与环境工程学院,山东济南250353

出　　处：《精细化工》2008年第8期746-749,共4页Fine Chemicals

基　　金：山东省自然科学基金(Y2004B09)~~

摘　　要：n(氯化苄)∶n(N,N-二乙基氨丙基甲基二甲氧基硅烷)=2∶1,在N2保护下,于78℃反应22 h,合成了二乙基苯甲基-3-(甲基二甲氧基硅)丙基氯化铵(DBPAC),用IR及1HNMR表征了产物结构。产物临界胶束浓度为2.89×10-3mol/L左右。考察了产物与正丁醇、水、八甲基环四硅氧烷(D4)体系的拟三元相图,通过测定微乳液含水量与电导率的关系,初步确定了其微乳液结构为W/O和O/W两种形式。Diethyl-benzyl-（methyldimethoxysilyl）propyl-ammonium chloride（DBPAC） was synthesized by reaction of diethylaminopropyl-methyl-dimethoxyl-silane and benzyl chloride in mole ratio 1∶2 under nitrogen at 78 ℃ for 22 h.It was characterized by IR and ^1HNMR.Its surfactivity and phase behavior was investigated and the phase diagram of DBPAC/n-butanol/H2O/octamethylcyclotetrasiloxane was depicted.It was discovered that there were two structures of W/O and O/W in the microemulsion.Moreover,the critical micelle concentration was determined to be about 2.89×10^-3 mol/L.

关 键 词：有机硅季铵盐 相图 微乳液 表面活性剂 

分 类 号：TQ264.1[化学工程—有机化工]