Electrosynthesis of free‐standing poly(para‐phenylene) films in mixed electrolytes of boron trifluoride diethyl etherate and trifluoroacetic acid on stainless steel electrode

Free-standing poly(para-phenylene) (PPP) films have been electrosynthesized by direct oxidation of benzene on stainless steel electrode in mixed e1ectrolytes of boron trifluoride diethy1 etherate (BFEE) and trifluoroacetic acid (TFA). The oxidation potential of the monomer in these media is lower than those in the neutral media. Increasing the content of TFA in the mixed electrolyte can effective1y decrease the oxidation potential and increase the coup1ing rate of the monomer. The films obtained from these media were very shiny and flexible, and could easily be processed into various shapes by conventional mechanical methods. The films had a 1inear chain structure, and their degree of polymerization could be improved by increasing the TFA content in the mixed electrolyte. Moreover, the films had a fairly good thermal stability. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 2462–2466, 2002

[1]  H. Nalwa.  Handbook of organic conductive molecules and polymers , 1997 .

[2]  Shi Jin,et al.  A Conducting Polymer Film Stronger Than Aluminum , 1995, Science.

[3]  K. Vijayamohanan,et al.  Mechanistic studies of electrochemically deposited poly(o-anisidine) films , 1995 .

[4]  G. Shi,et al.  Uniaxial oriented poly(p-phenylene) fibrils and films , 1994 .

[5]  L. Goldenberg,et al.  Anodic synthesis of poly(p-phenylene) , 1993 .

[6]  Susumu Tanaka,et al.  Preparation of poly(p-phenylene) via a new precursor route , 1993 .

[7]  C. Macosko,et al.  Electrochemical Processing of Conducting Polymer Fibers , 1993, Science.

[8]  L. Goldenberg,et al.  Low potential anodic polymerization of benzene in strong acid and superacid solutions , 1992 .

[9]  W. Stevenson,et al.  Thermal analysis of polyaniline. Part I. Thermal degradation of HCl-doped emeraldine base. , 1991 .

[10]  M. Delamar,et al.  Electrosynthesis and spectroscopic characterization of poly-para-phenylene films prepared by oxidation of benzene in liquid sulfur dioxide , 1988 .

[11]  T. F. Otero,et al.  Electrochemical generation of polythiophene films on platinum electrodes , 1988 .

[12]  P. Lacaze,et al.  Influence of the temperature on the structure of poly(p-phenylene) (PPP) films formed by electropolymerization of benzene on platinum electrodes in sulphur dioxide medium , 1988 .

[13]  D. Pletcher,et al.  A study of the conditions for the electrodeposition of polythiophen in acetonitrile , 1986 .

[14]  R. L. Elsenbaumer,et al.  Handbook of conducting polymers , 1986 .

[15]  P. Kovacic,et al.  Properties of poly(p-phenylene)s and the perdeuterated analog , 1982 .

[16]  N. Lerner.  ESR and chemical study of p‐polyphenylene formed by using an AlCl3–CuCl2 catalyst , 1974 .

[17]  P. Kovacic,et al.  Polymerization of Benzene to p-Polyphenyl by Aluminum Chloride-Cupric Chloride , 1963 .

[18]  C. Rao,et al.  Chemical Applications of Infrared Spectros-copy , 1963 .