Low dielectric fluorinated poly(phenylene ether ketone) film and coating
AssigneeThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration
InventorsPatrick E. Cassidy, Gordon L. Tullos, Anne K. St. Clair
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Abstract
A fluorinated poly(phenylene ether ketone) having one of the following structural formulas ##STR1## wherein X is selected from the group consisting of aryl, SO.sub.2, O, CO, --C(CH.sub.3).sub.2, and S, is prepared by reacting a bisphenol with 1,1,1,3,3,3-hexafluoro-2,2-bis[4-(4-halobenzoyl)phenyl]propane (wherein halo is fluoro or chloro), which is a novel monomer formed as the reaction product of halobenzene (wherein halo is fluoro or chloro) and 1,1,1,3,3,3-hexafluoro-2,2-bis(p-chloroformylphenyl)propane.
Claims9
A fluorinated poly(phenylene ether ketone) having a structural formula selected from the group consisting of:
- ##STR9## wherein X is selected from the group consisting of aryl, SO.sub.2, O, CO, --C(CH.sub.3).sub.2, and S.
A soluble, high temperature stable, highly optically transparent, low dielectric fluorinated poly(phenylene ether ketone) formed by the reaction in a solvent of bisphenol AF with 1,1,1,3,3,3-hexafluoro-2,2-bis[4-(4-halobenzoyl)phenyl]propane, wherein halo is selected from the group consisting of fluoro and chloro.
A soluble, high temperature stable, highly optically transparent, low dielectric, fluorinated poly(phenylene ether ketone) formed as the reaction product of 1,1,1,3,3,3-hexafluoro-2,2-bis[4-4-(halobenzoyl)phenyl]propane, wherein halo is selected from the group consisting of fluoro and chloro, with a bisphenol selected from the group consisting of ##STR10## wherein X is selected from the group consisting of aryl, SO.sub.2, O, CO, --C(CH.sub.3).sub.2, and S.
A monomeric material having the following structural formula ##STR11## wherein X is selected from the group consisting of fluorine and chlorine.
1,1,1,3,3,3-Hexafluoro-2,2-bis[4-(4-halobenzoyl)phenyl]propane formed as the reaction product of 1,1,1,3,3,3-hexafluoro-2,2-bis(p-chloroformylphenyl)propane and halobenzene, wherein halo is selected from the group consisting of fluoro and chloro.
Dependencies are inferred from the claim text.