Reverse osmosis studies on desalination membranes formed from chemically modified cellulose acetate

Abstract

Secondary cellulose acetate was chemically modified by introducing O-(carboxy-methyl), O-nitro, and O-(cyanoethyl) groups, and then tested for semipermeability. Introducin O-(cyanoethyl) groups (0.1-0.68 cyanoethyl group per C6 unit) gave an elastic film that was tougher and of better desalination characteristics than the standard cellulose acetate membrane. © 1970.