Affiliation:
1. Kurnakov Institute of General and Inorganic Chemistry RAS
Abstract
The development of modern technologies and the requirements that are imposed on the ecology of production require the producing of new polymeric ion-exchange membrane materials with a set of given properties. Such materials are used in systems of separation and purification of liquids and gases, chemical and electrochemical synthesis, in alternative energy. Membranes based on perfluorosulfonic acid (PFSA) polymers have a set of characteristics necessary for their practical application: good transport properties, strength, elasticity and chemical stability. In this review, the microstructure of PFSA membranes, its change upon sorption of water and solvents, the features of ion and gas transport, mechanical properties as well as the dependence of a number of parameters on the chain length and ionic form of the polymer are discussed.
Publisher
The Russian Academy of Sciences