Collect. Czech. Chem. Commun. 1993, 58, 2588-2594

Quaternized Poly(2-dimethylaminoethyl methacrylate)-PVC Composite Membranes

Vlastimil Kůdela, Stanislav Ševčík, Olen Ryba and Jiří Vacík

Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague 6, Czech Republic


A series of homogeneous and heterogeneous composite membranes consisting of PVC and crosslinked quaternized poly(2-dimethylaminoethyl methacrylate) was investigated electrochemically. Their electrolytic resistances ranged from nearly zero to insulator values at a permselectivity of 62 - 96.7%. Highly conductive and permselective membranes are promising for neutralization dialysis and dialysis of acids. Isolator-like membranes behave as bipolar ones (diode effect) and, in contact with KCl solutions of different concentrations. like electrets (persistent charge).