摘要
研究了２ ，４二硝基氯苯在十六烷基三甲基溴化铵／ 正丁醇／２５ ％ 正辛烷／Ｈ２ Ｏ微乳液介质中的水解动力学及其影响因素． 结果表明，水解速率在油包水（ Ｗ／Ｏ） 微乳液结构中随水含量增加而迅速减小；在双连续（Ｂ－Ｃ－） 结构中随水含量增加而增大；在水包油（Ｏ／ Ｗ） 结构中随水含量增加而减小． 水解速率的转变点发生在微乳液结构由Ｗ／Ｏ 到Ｂ－Ｃ－ 再到Ｏ／ Ｗ 转变点处，认为是由于界面膜性质、微乳液结构及微乳液滴大小等的改变所致． 另外，烃、醇及温度和ＮａＯＨ 浓度等对水解速率都有明显影响．
The hydrolysis kinetics of 2,4 dinitrochlorobenzene in microemulsion system of cetyltrimethylammonium bromide/ n butanol/25% n octane/water has been studied. The results show that the hydrolysis in W/O microemulsion decreases rapidly with increase of the water content in it, it also true in O/W microemulsion; whereas in B.C. the hydrolysis increases with water con tent . The transition points of the hydrolysis rates occur at the structural transition points from W/O to B C , and B C to O/W. This is considered to be caused by the change of polarity in interfacial films and the size of the particles. The effects of hydrocarbons, alcohols, temperature and NaOH concentration on the hydrolysis rate also have been investigated.
出处
《应用化学》
CAS
CSCD
北大核心
1999年第5期29-32,共4页
Chinese Journal of Applied Chemistry
基金
山东省自然科学基金
关键词
二硝基氯苯
CTAB
微乳液
水解动力学
dinitrochlorobenzene,cetyltrimethylammonium bromide, n octane, n butanol,microemulsion,hydrolysis kinetics
