Method of making a PEEK-PEmEK copolymer and copolymer obtained from the method
AssigneeSolvay Specialty Polymers USA, LLC
InventorsChantal Louis, Mohammad Jamal El-Hibri
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Abstract
A method of making a PEEK-PEmEK copolymer having RPEEK and RPEmEK repeat units in a molar ratio RPEEK/RPEmEK ranging from 95/5 to 45/55, the PEEK-PEmEK copolymer obtained from the method and the polymer composition including the PEEK-PEmEK copolymer, at least one reinforcing filler, at least one additive, or a combination thereof, shaped articles including the polymer composition, polymer-metal junctions including the polymer composition. Also described are methods of making the polymer composition, methods of making the shaped articles, and methods of making the polymer-metal junctions.
Claims18
A method of making a PEEK-PEmEK copolymer, comprising:
- a. reacting in a solvent comprising diphenylsulfone, in the presence of a base:
- at least one difluoro-compound of formula (C):
- with a mixture of di-hydroxy compounds of formulas (D) and (E):
- in a molar ratio (D)/(E) ranging from 95/5 to 45/55,
- in a molar ratio (C)/(D)+(E)≥1.005
- wherein
- each R3, R4, and R5, equal to or different from each other, is independently at each occurrence selected from the group consisting of halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine and quaternary ammonium, and
- each c, d, and e is independently selected from the group consisting of integers ranging from 0 to 4, and
- b. terminating the reaction with at least one end-capping agent,
- wherein the PEEK-PEmEK copolymer has a concentration of inert groups [inert EG] of at least 163 μmol/g and a heat of fusion (ΔH) >15 J/g.
The according to formula (F) below:
- wherein
- R6 is F, Cl, or OH,
- R7 is C(O)—Ar-R10, O-Ar-R10, SO2-Ar-R10, Ar-R10, an alkyl or H, with Ar being an arylene group comprising at least one benzene ring, and
- R10 is F, Cl or H.
A PEEK-PEmEK copolymer having a concentration of inert groups [inert EG] of at least 163 μmol/g, wherein the heat of fusion (ΔH) >15 J/g,
- wherein the heat of fusion (ΔH) is determined as the area under the melting endotherm on the second heat scan in a differential scanning calorimeter (DSC) according to ASTM D3418-03 and E793-06, and using heating and cooling rates of 20° C./min.
Dependencies are inferred from the claim text.