Accession Number:

ADD012150

Title:

Conducting Poly (p-Xylylidenes).

Descriptive Note:

Patent Application,

Corporate Author:

DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s):

Report Date:

1985-08-19

Pagination or Media Count:

19.0

Abstract:

Polyp-xylylidenes having a high degree of polymerization in the form of films, foams or highly molecularly oriented films and fibers are chemically modified from insulators to conducting materials by exposure to either p- or n-type dopants. Poly p-xylylidene films are cast from aqueous solutions of a poly p-xylene-a-dimethylsulfonium salt polyelectrolyte. Processing of the films at elevated temperatures can yield both fibers and foams. Exposure of the polyp-xylylidene films, fibers or foams to p-type dopants result in an up to fifteen order of magnitude increase in conductivity, while n-type coping yields a nine order of magnitude increase. Doping of molecularly oriented films and fibers yields a highly anisotropic conductor with a greatly improved conductivity in the orientation direction. Patent applications

Subject Categories:

  • Electrical and Electronic Equipment
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE