Accession Number : ADA296462

Title :   Improved Route to Bridged Planar Poly(p-phenylene) Derivatives for Maximization of Extended pi Conjugation.

Descriptive Note : Technical rept.,

Corporate Author : SOUTH CAROLINA UNIV COLUMBIA DEPT OF CHEMISTRY AND BIOCHEMISTRY

Personal Author(s) : Lamba, J. S. ; Tour, J. M.

PDF Url : ADA296462

Report Date : 07 JUN 1995

Pagination or Media Count : 9

Abstract : Poly(p-phenylene) (PPP), a highly insoluble polymer that has been studied extensively for its possible electronic and photonic applications, has a 230 twist between the consecutive aryl units due to ortho hydrogen interactions. Attempts to enhance the solubility by substitution of the rings forces the consecutive aryl units even further out of plane resulting in a plummet of the extended conjugation (easily observed by the optical spectra). We recently described a route to soluble ladder PPP derivatives. Here we describe an improved synthetic route to the monomers as well as an aryl-substituted ladder PPP derivative. jg p.3

Descriptors :   *POLYPHENYLENES, ELECTRONICS, OPTICS, INTERACTIONS, SYNTHESIS, POLYMERS, HYDROGEN, PLANAR STRUCTURES, VISIBLE SPECTRA, PHOTONS, ARYL RADICALS, MONOMERS, SOLUBILITY.

Subject Categories : Polymer Chemistry
      Organic Chemistry
      Atomic and Molecular Physics and Spectroscopy
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE