
184 HIGH PERFORMANCE POLYMERS
S
O
O
HO
3
S
SO
3
H
F
F
3,3′-Sulfonyl bis(6-fluorobenzene sulfonic acid)
S
O
O
HO
3
S
SO
3
H
OH
HO
3,3′-Sulfonyl bis(6-hydroyxbenzene sulfonic acid)
Figure 7.8 Telechelic sulfonated hydroxy functional
monomer and telechelic sulfonated fluoro functional
monomer [34].
aromatic polyether sulfones and blocks of aromatic
polyether sulfones sulfonated on the aromatic rings
are obtained. The block copolymers provide com-
pounds with both an adjustable degree of sulfonation
and a defined length of sulfonated and unsulfonated
blocks. The materials are suitable for the preparation
of synthetic membranes.
7.2.4 Macrocyclic Polymers
In poly(ether sulfone)s that ...