Dissolution of Perfluorinated Ion Exchange Polymer Having Lithium Carboxylate in a Mixture of Water and Aliphatic Alcohols

In this study the dissolution behavior of a used perfluorinated ion exchange polymer having carboxylate group in a mixture of water and aliphatic alcohols as solvent was investigated. In order to improve the dissolution, carboxylic acid group was changed into carboxylate lithium salt group which was verified by FTIR. Effects of temperature and stirring time on dissolution percentage, density and viscosity of the polymeric solution were examined. Results showed that by increasing temperature and dissolution time, dissolution increases after 85C. A good correlation between solubility, viscosity and density of the polymeric solution was established

کلیدواژه ها:

Perfluorinated ion exchange polymer ، Flemion® ، carboxylic acid membrane ، chlor alkali membrane ، membrane dissolution