High molecular weight poly (ether sulfonamide) has been prepared by co
ndensation of 4,4'-dichlorosulfonyldiphenylether with ethylenediamine.
The reaction of potassium salt of poly (ether sulfonamide) with epich
lorohydrin gives the corresponding N-glycidiyl derivative in yield as
high as 98%. The resulting polymer offers many functionalization possi
bilities through ring opening of the oxirane units.Also the glycidiyl
bearing polymer may act as muitifunctional post-crosslinking agent for
polymers carrying hydroxy, amino or carboxyl groups.