Aromatic polyethers,polysulfones, and polyketones as laminating resins. VII. Polymers with [2.2]-p-cyclophane units

1,3-Bis(p-phenoxybenzenesulfonyl)benzene (I), 4,4′-diphenoxy-diphenyl sulfone (II), diphenyl ether, and 3,9-bis(p-phenoxybenzoyl) [2.2]-p-cyclophane were polymerized with isophthaloyl chloride in Friedel-Crafts type polymerization. The polymers obtained, containing 6–8 wt.-% of p-cyclophane units were moderately soluble in HMPA and sulfuric acid with inherent viscosities, between 0.5 and 1.0. The polymers cured at 375°C for 3 days showed little penetration up to 400°C in the Vicat softening curves. Strong molding disks and laminates on glass fiber can be made with excellent thermal stability.