Attenuated total reflectance infrared microspectroscopy of aged carbon-filled rubbers

Do, Tuyet-Trinh, Celina, Mathew, & Fredericks, Peter M. (2002) Attenuated total reflectance infrared microspectroscopy of aged carbon-filled rubbers. Polymer Degradation and Stability, 77(3), pp. 417-422.

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A number of different carbon-filled rubbers have been studied using infrared microspectroscopy with an attenuated total reflectance objective incorporating a silicon internal reflectance element (IRE). Excellent spectra were obtained of these difficult samples in a reasonable measurement time. The IRE had a contact face of 100 μm diameter, but this could be apertured to improve the spatial resolution, but at the expense of the signal-to-noise ratio of the spectra. The minimum aperture size, which still produced an acceptable spectrum, was 40 μm. The spatial resolution was less than the aperture size because of the effect of the refractive index of the IRE. The method was applied to thermally aged rubbers by measuring spectra at intervals across a sectioned face. Oxidation profiles were derived from the absorbances of oxygenated functional groups in the spectra and were found to agree with those previously published. The IR-ATR microspectroscopic method is shown to be simple and effective because the measurement is made directly, and non-destructively, on the sectioned face of the rubber.

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22 citations in Scopus
19 citations in Web of Science®
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ID Code: 1425
Item Type: Journal Article
Refereed: Yes
Keywords: IR microscopy, FTIR, ATR, rubber degradation, oxidation profiles, polymer aging, carbon black filler
DOI: 10.1016/S0032-3861(02)00238-0
ISSN: 0141-3910
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > MACROMOLECULAR AND MATERIALS CHEMISTRY (030300)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2002 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 26 May 2005 00:00
Last Modified: 10 Aug 2011 13:30

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