Collect. Czech. Chem. Commun. 1987, 52, 2667-2672

Preparation of ionogenic membranes by radiation-induced grafting

Jaromír Lukáša, Alžběta Zouharováb, Ivan Čaderskýb and Jiří Vacíka

a Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, 162 06 Prague 6
b State Textile Research Institute, Radiation Technology Centre, 664 71 Veverská Bitýška


Conditions of preparation of ionogenic membranes based on the radiation induced polymerization of styrene on low-density polyethylene films (LDPE) were investigated. After optimization of the preparation conditions (radiation dose, concentration of the monomer solution, temperature of grafting), a series of samples with various degrees of grafting were prepared. Their sulfonation yielded cation-active membranes which were characterized by ion-exchange capacity, concentration membrane potentials, specific and area resistance, transport number of preferred ions, and permselectivity.