Accession Number:

ADA160482

Title:

Chemical Modification of Poly(ethylene imine) for Polymeric Electrolyte.

Descriptive Note:

Technical rept.,

Corporate Author:

NATIONAL BUREAU OF STANDARDS GAITHERSBURG MD POLYMERS DIV

Report Date:

1985-10-01

Pagination or Media Count:

13.0

Abstract:

Linear PEI has been chemically modified in an attempt to prevent formation of a crystalline complex without altering its ability to dissolve salts and conduct ions. Three main systems were investigated a polyN-acetylethylene imine, b partially quaternized PEI with ethyl or butyl groups, and c PEI cross-linked with diepoxyoctane. Dissolution of salt was followed by x-ray diffraction on the mixtures and changes in T sub g as determined by DSC. In all cases, the crystallinity was destroyed but conductivity of salt-containing polymer was not improved. However, lightly cross-linked PEI exhibits much improved mechanical properties and the incorporation of .05 mole NaImole of monomer yields a conductivity of .00005 Scm at 100 C. Author

Subject Categories:

  • Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE