A Comment on Random Versus Non-Random Defect Placement in Polyacetylane

Abstract

The dependence of electrical transport of doped polyacetylenes on conjugation length has been a topic of debate in recent years. We do not wish to comment on this issue specifically, but rather on the synthetic approach of introducing sp(3) defects into polyacetylene through protonation or alkylation of the n-type derivative. Specifically, we address the question of the randomness of the placement of defects and its implications for carrier transport and other electronic properties. Our principal conclusion is one defect for every 10 carbons in polyacetylene. We base this conclusion on experimental results reported in the literature of our theoretical study. Keywords: Synthesis (chemistry), Doping, Alkylation.

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Document Details

Document Type
Technical Report
Publication Date
Oct 03, 1988
Accession Number
ADA200807

Entities

People

  • Bradley J. Orchard
  • Gary E Wnek
  • Stuart B. Clough
  • Sukant Tripathy
  • Xiao-fang Sun

Tags

DTIC Thesaurus Topics

  • Acetylenes
  • Alkylation
  • Alkynes
  • Band Gaps
  • Band Structures
  • Carrier Mobility
  • Chemical Synthesis
  • Chemistry
  • Conductive Polymers
  • Energy Bands
  • Methylenes
  • Military Research
  • Organic Chemistry
  • Polymers
  • Spectra
  • Transport Ships
  • Visible Spectra

Readers

  • Government and Public Administration Law.
  • Materials Science and Engineering.
  • Molecular Genetics

Technology Areas

  • Microelectronics