Functionalized polyaryletherketones
AssigneeNational Research Council of Canada
InventorsJacques Roovers, Fei Wang, Michael Guiver
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Abstract
Bromomethyl derivatives of polyaryl ether ketones are obtained by brominating methyl derivatives of the ketones preferably with elemental bromine, optionally under UV light. The bromomethyl derivatives are useful as intermediates for further functionalization of the aromatic polyether ketones. The functionalized derivatives, depending on the substituent, exhibit different properties than the basic polymer, for example increased hydrophilicity and solubility.
Claims15
A process for preparing derivatives of a polyaryletherketone containing repeating units ##STR7## alone or in conjunction with other repeating units selected from the group consisting of subunit ##STR8## where M is selected from the group consisting of ##STR9## A is --O-- or --CO-- and n is 1 or 2, the process comprising
- a) providing a methyl derivative of said polyaryletherketone with methyl groups being substituted predominantly on the phenylene rings of the subunits M, and
- b) brominating said methyl derivative in conditions effective to obtain a bromomethyl derivative of said polyaryletherketone.
A bromomethyl derivative of a polyaryletherketone, the derivative containing repeat units ##STR10## alone or in conjunction with other repeat units selected from subunit ##STR11## where M is selected from ##STR12## Me is methyl or substituted methyl group, x is a number from about 0.01 to about 12, y corresponds to the number of methyl groups x multiplied by the degree of bromination, A is --O-- or --CO-- and n is 1 or 2.
A polyaryletherketone derivative containing repeating units of the formula ##STR13## alone or in conjunction with other repeat units selected from ##STR14## where M is selected from ##STR15## x is a number from 0.01 to about 12, A is --O-- or --CO--, n is 1 or 2, and Z is a substituent selected from the group consisting of methoxy methylene, methyl carboxylate, hydroxy methylene, cyano methylene, acetic acid, acetoxy methylene, diethylamine hydrogenbromide methylene, diethylamine methylene, triethylammonium bromide methylene, aldehyde, carboxylic acid, and carbonyl fluoride.
Dependencies are inferred from the claim text.