Dynamical study of the water penetration process into a cellulose acetate film studied by coherent anti-Stokes Raman scattering (CARS) microspectroscopy

Rie Fujisawa, Tomoya Ohno, Junya F. Kaneyasu, Philippe Leproux, Vincent Couderc, Hiroshi Kita, Hideaki Kano

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The penetration process of water into a cellulose acetate film was traced in real time by coherent anti-Stokes Raman scattering (CARS) microspectroscopy. The C=O stretch mode was red-shifted due to hydrogen-bond formation. We also found that two Raman bands at 1605 cm-1 and 1665 cm-1 emerged only in the early stage of the water penetration process. Based on the combined analysis of the experimental and computational studies, these bands at 1605 cm-1 and 1665 cm-1 were assigned as the OH bend mode due to hydrogen-bonded penetrated water and hydrogen-bonded OH groups in pyranose rings, respectively.

Original languageEnglish
Pages (from-to)86-90
Number of pages5
JournalChemical Physics Letters
Volume655-656
DOIs
Publication statusPublished - Jul 1 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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