Abstract: Polyaromatic ether-sulfone-ketones containing fluoro-substituted-p-cyclophane units were prepared from isophthaloyl chloride, terephthaloyl chloride, diphenyl ether, diphenoxydiphenyl sulfone and a small amount of either 1,1, 2,2, 9,9, 10,10-octafluoro [2,2]-p-cyclophane (type B) or pseudo-p-1,1, 2,2, 9,9, 10,10-octofluoro [2,2]-p-cyclophane bis-acid chloride (type A) by a Friedal-Crafts type polymerization procedure. The p-cyclophane units were incorporated as cross-linking sites.

Abstract: Polyaromatic ether-sulfone-ketones containing fluoro-substituted-p-cyclophane units were prepared from isophthaloyl chloride, terephthaloyl chloride, diphenyl ether, diphenoxydiphenyl sulfone and a small amount of either 1,1,2,2,9,9,10,10-octafluoro[2,2]-p-cyclophane (type B) or pseudo-p-1,1,2,2,9,9,10,10-octofluoro[2,2]-p-cyclophane bis-acid chloride (type A) by a Friedel-Crafts type polymerization procedure. The p-cyclophane units were incorporated as cross-linking sites.

Abstract: New, easily processable, polyaromatic esters were prepared from 2,2'-diiododiphenyl-4,4'-dicarbonyl dichloride, isophthaloyl chloride and/or terephthaloyl chloride in combination with 4,4'-isopropylidene diphenol, 4,4'-sulfonyldiphenol, or resorcinol by interfacial condensation. In these polymers, phenylacetylenyl groups can be easily introduced into the polymer chain by replacing the iodine. This process leads to soluble and curable polymers from which films can be prepared. After curing the polymers are insoluble and show excellent thermal and chemical resistance. The curing process increases the polymers' softening temperature about 20.degree. C.

Abstract: New processable polyaromatic amides were prepared from the acid chloride of bis-m-carboxyphenyl acetylene and several aromatic diamines. The polyamides containing the acetylene units were cured by Diels-Alder cycloaddition reaction with 1,4-diphenyl-1,3-butadiene. Cured polyamides showed increase in Tg. thermal and heat stabilities. The polyamides can be cast into films and give good glass fiber laminates.

Abstract: A process for synthesizing novel polyaromatic amides containing 1,3-butadiene groups along the polymer chain by effecting a reaction between the acid chloride of 1,4-bis-p-carboxyphenyl-1,3-butadiene and an aromatic diamine. These polyamides have been found to be especially useful as laminating resins for a variety of laminating applications.

Abstract: The acid chloride of 1,4-bis-p-carboxyphenyl-1,3-butadiene and isophthaloyl chloride were polymerized with 4,4-diphenoxy-diphenyl sulfone and diphenyl ether in a Friedel-Crafts type polymerization. The resulting polymers contained 5-20 mole % of butadiene units and were insoluble in all solvents.

Abstract: The acid chloride of bis-m-carboxyphenyl acetylene was copolymerized with a mixture of isophthaloyl chloride, diphenyl ether and 4,4'-diphenoxydiphenyl sulfone to produce novel polyaromatic ether-ketone-sulfones easily cured by a Diels-Alder cycloaddition reaction.

Abstract: Polymers having pendant phenylethynyl groups are obtained by reacting phenylacetylene with a bromine-containing polymer prepared by reacting bis-p-phenoxy-4,4'-(2,2'-dibromodiphenyl)ketone or 2,2'-dibromodiphenyl-4,4'-dicarbonyldichloride with isophthaloyl dichloride and 4,4'-bis-p-phenoxydiphenylsulfone. Because the polymers cure without the evolution of volatiles and have softening points higher than their cure temperatures, they are especially suitable for use in fabricating fiber-reinforced composites.

Abstract: Polymers of the following formulas, and cross-linked resins formed therefrom through thermal cleavage of the four-membered rings of the biphenylene nuclei, are useful as molding and laminating materials: ##STR1## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3, Ar.sub.4 and Ar.sub.5 are the same or different bivalent aromatic hydrocarbon radicals containing six to ten carbons, n is an integer from 100 to 200, m is an integer from 5 to 25, x is an integer from 50 to 100, and y is an integer from 3 to 12. In the preferred modifications, n is an integer from 50 to 190 and m is an integer from 8 to 15, and the preferred ratio of n to m is from about 18:1 to about 20:1; in one species n is about 152 and m is about 8, while in a related species n is about 190 and m is about 10.

Abstract: A tri(phenylene disulfide) polymer composed of para- or meta-tri(phenylene disulfide) units and units selected from the group consisting of diphenyl ether, bis(phenoxybenzenesulfonyl)benzene and bis(phenoxybenzenesulfonyl)diphenyl ether, is linked together with bivalent radicals selected from the group consisting of isophthaloyl and terephthaloyl radicals. In another embodiment, the tri(phenylene disulfide) can be substituted with biphenylene-2,2'-disulfide.

Abstract: Polyphenylene sulfides are synthesized by refluxing a mixture of an aromatic sulfide and an aromatic dibromide such as m-benzenedithiol and m-dibromobenzene in a basic medium of potassium carbonate in dimethylformamide or dimethylacetamide. The products obtained are slightly off-white with relatively low melting ranges and have inherent viscosities in the 0.2 to 0.4 dl/g range in hexamethylphosphoric triamide. Similar polyphenylene sulfides containing pendant cyano groups along the polymer chains were obtained using 5 mole-% of either 2,4-dichlorobenzonitrile or 3,5-dichlorobenzonitrile as a reaction constituent. The products were similar to the pure polyphenylene sulfides except that they showed lower melting ranges and gave insoluble products when heated alone or in the presence of zinc chloride.

Abstract: A polymer having one of the general formulae ##EQU1## and ##EQU2## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3, Ar.sub.4, Ar.sub.5, Ar.sub.6, Ar.sub.8, Ar.sub.9 and Ar.sub.10 are the same or different bivalent aromatic hydrocarbon radicals containing six to ten carbon atoms, Ar.sub.7 is a trivalent aromatic hydrocarbon radical containing 6 to 10 carbon atoms, and n is 30 to 120.