ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Electrosynthesis of poly(p-phenylene) and poly(p-phenylene/pyrrole) films under controlled humidity

Carla Eiras, Maurício Foschini, Juliana C. Soares, and Débora Gonçalves

Centro de Ci˛encias da Natureza, Universidade Federal do Piauí, Teresina, PI, Brazil

E-mail: gdebora@ifsc.usp.br

Abstract: Poly(p-phenylene/pyrrole) (PPP-PPY) films were electrochemically synthesised on transparent indium-tin-oxide-covered glass (ITO) electrodes. The presence of two monomers, p-phenylene and pyrrole, in the polymerisation medium facilitated the synthesis process, yielding electroactive, uniform and stable films. In order to obtain materials with improved quality, PPP, PPY and PPP-PPY films were prepared in a mild, dry atmosphere. The morphological, electrochemical and optical properties were compared for different films obtained by varying the number of cycles with and without controlling humidity.

Keywords: conducting polymers – polypyrrole – conjugated polymers – copolymers – poly-p-phenylene

Full paper is available at www.springerlink.com.

DOI: 10.1515/chempap-2015-0107

Chemical Papers 69 (7) 958–963 (2015)