Polymeric material

Polyetheretherketone (PEEK) may be prepared by polycondensation of a single monomer (4-fluoro-4'-(4-hydroxyphenoxy) benzophenone) (FHPB) (Methanone, (4-fluorophenyl)[4-(4-hydroxyphenoxy)phenyl]), in diphenylsulphone (DPS) solvent and in the presence of sodium carbonate and potassium carbonate....

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Bibliographic Details
Main Authors GLYNN HARRINGTON, NIGEL PHILIP SLATER, RICHARD LUKE AINSWORTH
Format Patent
LanguageEnglish
Published 29.04.2015
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:Polyetheretherketone (PEEK) may be prepared by polycondensation of a single monomer (4-fluoro-4'-(4-hydroxyphenoxy) benzophenone) (FHPB) (Methanone, (4-fluorophenyl)[4-(4-hydroxyphenoxy)phenyl]), in diphenylsulphone (DPS) solvent and in the presence of sodium carbonate and potassium carbonate. An additional monomer, 4,4-difluorobenzophenone (BDF) , in a small amount may be used to control the rate of polymerisation, act as an end stopper and/or to ensure the PEEK polymer is fluorine capped. The polyetheretherketone (PEEK) has a Tm of less than 340oC, preferably in the range 333oC-337oC and a Tg in the range 142-144oC. The process can be used to produce high quality, relatively light coloured polymers having a lower Tm than those produced using a standard PEEK process.
Bibliography:Application Number: GB20140016404