Microheterogeneous Solvation for Aminolysis Reactions in AOT-Based Water-in-Oil Microemulsions

摘要: A kinetic study was carried out on the aminolysis of p-nitrophenyl acetate (NPA) by n-decylamine (DEC), piperazine (PIP) and sarcosine (SAR) in AOT/isooctane/water (w/o) microemulsions. By using pseudo- phase model both rate constants at interface, k i 2, water micro- droplet, w 2 , can be obtained. The ob- tained results show that increases to- gether with content microemulsion, whereas as system de- creases. In aqueous microdroplet predominant interaction Na + ···OH2 causes a decrease strength hydrogen bonds therefore facili- tates desolvation reagents W decreases. This increase interface mi- croemulsion interac- tion SO3 ! ···HOH an electronic density molecules consequent their efficiency solvation partial negative charge, which velops carbonyl oxygen atom transition state reaction. to together con- tent system.