POLYMERIC MATERIALS

摘要

Polyaryletherketones are produced which are end-capped with a phenylethynyl-containing moiety. The end-capped material, having a relatively low molecular weight, may be subjected to a thermal cycle to produce a higher molecular weight material having excellent mechanical properties, a relatively high level of crystallinity and acceptable Tm and Tg

主权项

1. A polymeric material comprising a repeat unit of formula I: wherein t1 and w1 independently represent 0 or 1 and v1 represents 0, 1 or 2; wherein said polymeric material also includes a phenylethynyl moiety and wherein, optionally, said polymeric material has a Reduced Viscosity (RV) of at least 0.6 dL/g.