
6 Poly(aryl ether ketone)s
Poly(aryl ether ketone)s have aromatic groups and
both the ether group and the keto group are in the
backbone. Figure 6.1 illustrates the basic repeating
structures of this class of substances. Of course, there
are several varieties of those structures shown in
Figure 6.1, resulting from the use of comonomers, etc.
A special related class is that of poly(ether sulfone).
Poly(aryl ether ketones) belong to the class of
engineering polymers. In early to mid-1970s, Ray-
chem Corp. commercially introduced a poly(aryl ether
ketone) called Stilan®. In this polymer, each ether
and keto group is separated by 1,4-phenylene units. In
1978, ...