Study of the water/poly(ethylene glycol) interface by IR-visible sum-frequency generation spectroscopy

Laurent Dreesen, Christophe Humbert, Philippe Hollander, Alaa Addin Mani, Kenichi Ataka, Paul Thiry, André Peremans

Research output: Contribution to journalArticle

Abstract

We used infrared-visible sum-frequency generation spectroscopy to investigate the vibrational properties of the water/poly(ethylene glycol) interface in the 2800±3800 cm'1 spectral range. The vibrational ¯ngerprint of the interface di€ers signi¯cantly from the one associated with the air/poly(ethylene glycol) interface. It is shown that the poly(ethylene glycol) molecular arrangement, originally relatively well-ordered, becomes disorganised in the presence of water. Moreover, a new OH band is identi¯ed demonstrating the strong interaction of water with the polymer.
Original languageEnglish
Pages (from-to)327-331
Number of pages5
JournalChemical Physics Letters
Volume333
Issue number5
Publication statusPublished - 2001

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