SURFACE-ENHANCED RAMAN-SCATTERING FROM MODEL ACRYLIC ADHESIVE SYSTEMS

被引：40

作者：

BOERIO, FJ ^{[1
]}

HONG, PP ^{[1
]}

CLARK, PJ ^{[1
]}

OKAMOTO, Y ^{[1
]}

机构：

[1] LOCTITE CORP,NEWINGTON,CT 06111

来源：

LANGMUIR | 1990年 / 6卷 / 04期

关键词：

D O I：

10.1021/la00094a002

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 sulfimide (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 were preferentially adsorbed at the silver surface to form metal salts and that surface-enhanced Raman scattering can be used for nondestructive 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. © 1990, American Chemical Society. All rights reserved.

引用

页码：721 / 727

页数：7

共 22 条

[1] THE INFRARED SPECTRA OF SOME SULPHONAMIDES [J].