Accession Number:

ADA149104

Title:

Conduction in Polymerized Polyfunctional Diacetylenes.

Descriptive Note:

Technical rept.,

Corporate Author:

CASE WESTERN RESERVE UNIV CLEVELAND OH DEPT OF MACROMOLECULAR SCIENCE

Personal Author(s):

Report Date:

1984-12-01

Pagination or Media Count:

14.0

Abstract:

The dimer of 1,11 dodecadiyne is representative of a family of diacetylene monomers which can be crystallized and then polymerized into semiconducting polymers. These materials possess sheet-like structures containing parallel polyacetylene and polydiacetylene chains bridged by methylene units. Polymeric forms of these coupled diynes have also been prepared and crosspolymerized. Structural studies of these materials have been performed. The dimer 1,11 dodecadiyne was prepared in a unique manner which eliminates the possibility of contamination by oligomeric impurities that hinder crystallization. Microscopic single crystals of the dimer, obtained from hexane solution, were used in a structure analysis by electron diffraction. These results were compared to the structure of the fully polymerized crystal which was determined by x-ray analysis. Originator-supplied keywords include Polydiacetylenes, and Conductivity.

Subject Categories:

  • Plastics
  • Electricity and Magnetism
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE