Chemical modification of acrylonitrile copolymers: Reaction of cationic copolymers with ethylene oxide



Copolymers of tertiary amines have been reacted with ethylene oxides gas. The reaction induces low temperature cyclization and increases polymer hydrophilicity. When the co-polymer is in film form, water permeability is dependent on ethylene oxide processing time and temperature.

The behavior of the copolymer films when treated with ethylene oxide is contrasted with the effects due to thermal treatment of acrylonitrile copolymers.