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US 7,582,722 B1Granted
Phenylethynylbenzophenone-endcapped hyperbranched poly(arylene-ether-ketone-imides)
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorsLoon-Seng Tan, David H. Wang, Fred E. Arnold, Jr., Tara M. Storage
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Abstract
Novel ether-ketone-imide hyperbranched polymers with non-reactive benzophenone or thermally reactive phenylethynyl endgroups were prepared from the corresponding AB2 monomer and benzophenone-based endcapping agent in one-pot fashion. The resulting polymer has repeating units of the formula: where the chain-end groups, Ar's, are 4-benzophenone or 4-benzophenone with ortho, meta- or para-phenylethynyl substituents in the 4′-position.
Claims8
An ether-ketone-imide hyperbranched polymer having repeating units of the formula:
- wherein n=10-20, and Ar is a 4-benzophenone with ortho-, para- or meta-phenylethynyl substituents in the 4′-position.
Dependencies are inferred from the claim text.