title: Ramping of pH Across the Water-Pool of a Reverse Micelle.
abstract: In this work, we have addressed the problem of "acidity" of the water-pool of a reverse micelle (RM) through the well-known inversion of sucrose reaction as a tool of investigation. This reaction has been performed inside positively and negatively charged RM and the rates are compared with that in bulk water. We propose that the buffer-like action in a water-pool is much stronger than expected earlier. The rate of sucrose hydrolysis slowed down in the negatively charged AOT reverse micelle while it sped up for the positively charged CTAB reverse micelle. However, temperature-dependent measurements showed that the activation energy remained the same for all the cases. It has been concluded that a proton gradient exists inside the water-pool of the reverse micelle and it determines the buffer-like action of the water-pool that persists until about 2 N of HCl in AOT RM of w(0) = 10.5.
authors: Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur 208 016, India.
authors: Puspal
authors: P
authors: Mukherjee
authors: Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur 208 016, India.
authors: Shradhey
authors: S
authors: Gupta
authors: Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur 208 016, India.
authors: Shahnawaz R
authors: SR
authors: Rather
authors: Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur 208 016, India.
authors: Rajeev
authors: R
authors: Yadav
authors: Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur 208 016, India.
authors: Vipin Kumar
authors: VK
authors: Jain
authors: Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur 208 016, India.
authors: Jayraj
authors: J
authors: Raval
authors: Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur 208 016, India.
authors: Pratik
authors: P
authors: Sen