Surface-Sensitive Molecular Information on Polymers from UV-Resonance Raman Spectroscopy

Authors: Wang, Jiann-Hua; Klenerman, David; van der Pol, André; Meier, Robert J.

Source: Applied Spectroscopy, Volume 57, Issue 5, Pages 154A-178A and 483-590 (May 2003) , pp. 518-521(4)

Publisher: Society for Applied Spectroscopy

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Abstract:

Ultraviolet resonance Raman spectroscopy (UV-RRS) has been applied to a series of samples of poly(ethylene 2,6-naphthalene dicarboxylate) (PEN) and poly(ethylene terephthalate) (PET) of varying thickness. The spectra demonstrate that under resonance conditions, when absorption is very strong, only a very thin top layer of the sample is probed (hundreds of nanometers range). This allows probing molecular vibrational spectra of the top layer of the sample, with a surface-resolution at least an order of magnitude better than in the case of normal non-resonance Raman spectroscopy and using a microscope.

Keywords: ULTRAVIOLET RESONANCE RAMAN SPECTROSCOPY; POLY(ETHYLENE TEREPHTHALATE); PET; POLY(ETHYLENE 2,6-NAPHTHALENE DICARBOXYLATE); PEN; SURFACE SENSITIVITY

Document Type: Research article

DOI: http://dx.doi.org/10.1366/000370203321666524

Publication date: 2003-05-01

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