Surface-Enhanced Raman Scattering from Model Acrylic Adhesive Systems

reportActive / Technical Report | Accession Number: ADA216117 | Open PDF

Abstract:

Surface-enhanced Raman scattering SERS has been observed from a model acrylic adhesive deposited onto silver island films. SERS spectra of the adhesive system were very similar to SERS spectra of o-benzoic sulphimide saccharin, a component of the curing system of the adhesive, and to normal Raman spectra of the sodium salt of saccharin. When saccharin was replaced in the curing system by benzoic acid, SERS spectra of the adhesive were similar to SERS spectra of benzoic acid and to normal Raman spectra of benzoic acid salts. The intensity of the SERS spectra was independent of the thickness of the adhesive films, indicating that the observed Raman signal was characteristic of the interface and not of the bulk of the films. These results demonstrate that saccharin and benzoic acid wee preferentially adsorbed at the silver surface to form metal salts and that surface-enhanced Raman scattering can be used for non- destructive characterization of interphases between polymer films and SERS- active metal substrates as long as the films are not so thick that normal Raman scattering from the bulk is comparable in intensity to the SERS from the interphase.

Author(s):
Boerio, F. J. ; Hong, P. P. ; Clark, P. J. ; Okamoto, Y.
Author Organization(s):
CINCINNATI UNIV OH DEPT OF MATERIALS SCIENCE AND ENGINEERING
Descriptive Note:
Technical rept.
Supplementary Note:
Prepared in cooperation with Loctite Corp., Newington, CT.
Pagination:
0034

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR-4
Contract/Grant Number(s):
N00014-89-J-1590
 Subject Terms
Joint Capability Areas:
JCA_1.2.3_Educating; JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.2.7_Experimentation; JCA_4.6_Engineering
Communities of Interest:
Air Platforms
Descriptor(s):
*ACRYLIC RESINS, *ADHESIVES, *LIGHT SCATTERING, *RAMAN SPECTRA, SODIUM, SURFACES, SPECTRA, BENZOIC ACIDS, POLYMERIC FILMS, SALTS, CURING, SILVER, ISLANDS, SUGARS, SYNTHETIC MATERIALS, FILMS, MODELS, THICKNESS, METALS, SIGNALS
Field(s)/Group(s):
Medicine and Medical Research, Organic Chemistry, Adhesives, Seals and Binders
Report Date:
1989 Dec 01