Preparation and Characterization of Neutral and Oxidized Polypyrrole Films.

Abstract

Oxidized and neutral films of polypyrrole have been prepared electrochemically in the absence of oxygen and water. The neutral films are insulating and can be readily oxidized by chemical oxidizing agents to give films of greater conductivity than can be achieved by electrochemical oxidation. Optical spectroscopy provides evidence for the similarity of the polymeric carbonium ion produced by both types of oxidation. NMR studies are consistent with the alpha, alpha' bonding in these polymers; they also show the expected downfield shifts relative to the neutral polymer on both chemical and electrochemical oxidation. Electron Spin Resonance studies of both the electrochemically oxidized and the neutral polymer suggest the presence of highly mobile spins. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 31, 1981
Accession Number
ADA107166

Entities

People

  • G. B. Street
  • K. K. Kanazawa
  • M. T. Krounbi
  • T. C. Clarke
  • V. Y. Lee

Organizations

  • International Business Machines Corporation (Armonk, NY)

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Cells
  • Chemical Analysis
  • Chemistry
  • Conductive Polymers
  • Conductivity
  • Electrochemical Cells
  • Films
  • Materials
  • Military Research
  • Optical Properties
  • Polymers
  • Spectra
  • Spectroscopy
  • Thick Films
  • United States
  • X Rays

Readers

  • Organic Chemistry
  • Plasma Physics.
  • Polymer Science and Technology

Technology Areas

  • Microelectronics