Poly(aniline-co-o-toluidine) and poly(aniline-eo-m-toluidine) have been synthesized by both chemical and electrochemical copolymerizations of aniline with o-toluidine and with m-toluidine, respectively. The compositions of the copolymers were determined by 1H NMR spectroscopy and could be altered by variation of the comonomer feed ratios. Thus, conductivity of copolymers can be controlled in a broad range, (e.g. when doped with 1 M HC1), from cá. 10 S/cm for homopolymer of aniline to ca. 0.1 S/cm for those of toluidines. The relationship between copolymer composition and comonomer feed ratio shows that the toluidines are more reactive than aniline in the copolymerization. The results are consistent with the proposed mechanism for the polymerization of aniline and its derivatives.

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Poly(2,2'-bithienylmethyl methacrylate) has been prepared and used as an initiator in electrochemical and chemical oxidative polymerization of 3-alkylthiophenes,

A new acetylene‐terminated Schiff base monomer, N,N′‐(1,4‐phenylenedimethylidyne)‐bis‐(4‐ethynylaniline) (PPP), was synthesized and was characterized by nuclear magnetic resonance and infrared spectroscopy. This monomer was then polymerized to yield a new polymer (PPPP) with alternating units of aromatic imine and diacetylene via an oxidative coupling polymerization of the acetylenic terminal groups. The monomer was also polymerized by thermal curing at elevated temperatures up to 400°C to afford a crosslinked polymer network without significant structural decomposition. Thermal properties and thermal reactions of the monomer and the polymers were studied by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The polymers exhibit excellent thermal stabilities in an inert atmosphere. Electronic properties of the polymers are also discussed.

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