Accession Number:

ADA222750

Title:

Molecular Structure of Interphases between DGEBA/BTDA Adhesives and Silver Substances Using Surface-Enhanced Ram Scattering

Descriptive Note:

Technical rept.

Corporate Author:

CINCINNATI UNIV OH DEPT OF MATERIALS SCIENCE AND ENGINEERING

Personal Author(s):

Report Date:

1990-06-01

Pagination or Media Count:

29.0

Abstract:

Surface-enhanced Raman scattering SERS was used for the non- destructive characterization of interphases between epoxyanhydride adhesive systems and silver substrates. Normal Raman spectra of benzophenone tetra- carboxylic dianhydride BTDA were characterized by strong bands near 1785 and 1860 1cm that were assigned to the anhydride groups, a strong band near 1690 1 cm that was assigned to the benzophenone CO stretching mode, and by a strong band near 1620 1cm that was attributed to vibration and to the benzophenone CO stretching mode were prominent in the SERS spectra of BTDA but the bands related to the anhydride group were missing, indicating that the anhydride groups were hydrolyzed at the silver surface to form carboxylate groups. JG

Subject Categories:

  • Organic Chemistry
  • Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE