Polymeric materials
AssigneeVictrex Manufacturing Limited
InventorsAdam CHAPLIN, Erin BRYCE, Michael David BENSTEAD, Michael Lewis TURNER
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Abstract
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
Claims25
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.
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A polymeric material comprising a repeat unit of formula I:
- where 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 said polymeric material includes at least 60 mol % of repeat units of formula I.
A process for preparing a polymeric material, the process comprising:
- (i) selecting one or more monomers arranged to be polymerised to define a polymeric material comprising a repeat unit of formula
- where t1 and w1 independently represent 0 or 1 and v1 represents 0, 1 or 2;
- (ii) reacting said one or more monomers in the presence of an ethynyl compound which includes a phenylethynyl moiety in order to incorporate the ethynyl compound into the polymeric material.
Dependencies are inferred from the claim text.