US 7,718,753  B2  16  15  6.  The method of claim  5  wherein Xis OH or SH if any B  of the polymerizable organic superdiacid monomer is a  halide.  7.  The method of claim  2  wherein the aromatic monomer  comprises one of 4,4’-difluorobenzophenone, 4,4’-difluo- rodiphenylsulfone, 4,4’-didichlorodiphenylsulfone, or 1,3- bis( 4’-fluorobenzoyl)benzene.  8.  The method of claim  1  wherein polymerizing the poly› merizable organic superdiacid monomer comprises polymer› izing the polymerizable organic superdiacid in a solvent and  a base.  9.  The method of claim  8  wherein the solvent is comprises  sulfolane, diphenylsulfone, dimethylfluoride, dimethylsul› foxide, dimethylacetamide, N-methylpyrrolidinone, or com› binations thereof.  10.  The method of claim  8  wherein the base comprises  sodium hydroxide, potassium carbonate, or a combination  thereof.  *  *  *  *  * 