Disubstituted p-phenylene monomers. α-methyl- and α-phenyl-vinyl derivatives of benzene, biphenyl, p-terphenyl, and p,p′-diphenoxiybiphenyl

The high-yield syntheses of bis [p-(α-methylvinyl)] monomers of benzene, biphenyl, p-terphenyl, and 4,4′-diphenoxybiphenyl are reported. Also described are the syntheses of new bis[p-(α-phenylvinyl)] monomers of biphenyl, p-terphenyl, and 4,4′-diphenoxy-biphenyl. Infrared spectral data for the diolefinic monomers and their precursors are presented, together with brief details for the polymerization of the diolefins by means of free radical and Lewis acid catalysts.