TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The solvent is a polar solvent or a mixed solvent comprising one or more polar solvents. The solvent is: cresol, N,N-dimethylacetamide, N-methyl-2-pyrrolidinone, dimethylsulfoxide, Butyl Cellosolve (RTM: Butyl glycol ethylene glycol monobutyl ether), Methyl Cellosolve (RTM: Ethylene glycol monomethyl ether), Ethyl Cellosolve (RTM: 2-Ethoxyethanol), ethylene glycol monobutyl ether, propylene glycol monobutyl ether, diethylene glycol monobutyl ether, N,N-dimethylacetamide, N-methyl-2-pyrrolidone, dimethylsulfoxide or N,N-dimethylformamide (all preferred) or their polar solvents; or methanol, ethanol, propanol, isopropanol, butanol, acetone, methyl ethyl ketone, methyl isobutyl ketone or toluene. The aromatic diamine is 4,4'-diamino-2,2'-bistrifluoromethylbenzidine, 9,9-bis(4-aminophenyl) fluorene, 9,9-bis(3-fluoro-4-aminophenyl) fluorene, 4,4'-diamino-2,2'-bistrifluoromethoxylbenzidine, 4,4'-diamino-2,2'-bistrifluoromethyldiphenyl ether, bis-(4-amino-2-trifluoromethylphenyloxyl) benzene or bis-(4-amino-2-trifluoromethylphenyloxyl) biphenyl. The aromatic diacid dichloride is terephthaloyl dichloride, isophthaloyl dichloride, 2,6-naphthaloyl dichloride or 4,4-biphenyldicarbonyl dichloride. The terminal -COOH group and/or terminal -NH2 group of the aromatic polyamide are end-capped. The molar percent of diamine containing the pendent carboxylic acid group is 1-30 mole% of the total diamine mixture. The diamine containing the carboxylic acid group is 4,4'-diaminodiphenic acid or 3,5-diaminobenzoic acid.    TECHNOLOGY FOCUS - POLYMERS - Preferred Process: The process further comprises end-capping the terminal carboxylic acid (-COOH) group and/or terminal amine (-NH2) group of the polyamide. The process-I further comprises: curing the film during and/or after the step (f), where the film curing temperature is held at a temperature of least 28 degrees C, preferably 90-110% of the glass transition temperature of the film for at least 3 minutes; and de-bonding, from the base, the display element, the optical element or the illumination element formed on the base. The solution of an aromatic copolyamide is produced in the absence of inorganic salt. The reaction of the reagent with the hydrochloric acid forms a volatile product. The at least one repeat unit is formed by reacting an aromatic diamine comprising with at least one aromatic diacid dichloride. The carboxylic acid containing repeat unit is formed by reacting 4,4'-diaminodiphenic acid or 3,5-diaminobenzoic acid with at least one aromatic diacid dichloride. The reagent is added to the mixture before or during the reacting step (c), and organic neutralizing reagent, preferably propylene oxide. Preferred Components: The molar fraction of X is 70-99%, and the molar fraction of Y1 is 1-30%. The copolymer contains multiple repeat units (I) and (II). EXAMPLE - No suitable example given.