Oxidative copolymerization between toluidine and vinyl acetate

Abstract

A series of copolymers between o-toluidine (OT) and vinyl acetate (VA) was synthesized by a chemically oxidative polymerization, which was carried out by three different methods: suspension solution precipitation, emulsion and inverse emulsion copolymerizations by using iron trichloride, and ammonium persulfate as oxidant. The progress in the copolymerization, polymerization yield, structure, and properties of the resulted OT/VA copolymers were systematically characterized by solution potential/ temperature monitor, laser particle size, FTIR, UV-vis, and thermogravimetry techniques. The results show that the diameter, spectral characteristics, solubility, film formability, electrical conductivity, and thermostability of the virgin polymer particles formed exhibit a nonmonotonic dependence on the OT/VA ratio, suggesting an occurrence of an oxidative copolymerization between OT and VA monomers.

Estudos do meio reacional da síntese de polianilina e poli-o-toluidina

“…Estes fatos suscitaram pesquisa com estruturas modificadas de PAni, pela utilização de dispersões do meio reacional[23], uso de diferentes ácidos / ácidos funcionalizados[20,[24][25], síntese de copolímeros[26][27] ou utilização de anilinas substituídas[26][27][28][29][30][31][32][33]. meio ácido na presença de um agente oxidante, sendo persulfato de amônio o reagente mais utilizado.…”