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Reflection–absorption Fourier transform infrared spectroscopy (RAIRS) study of the conformation and orientation of poly(amino acid) Langmuir–Blodgett films
Author(s) -
AuducBoyer N.,
Stevenson I.,
Duc Tran Mihn,
Linossier I.,
Gaillard F.
Publication year - 1995
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.740231005
Subject(s) - fourier transform infrared spectroscopy , infrared spectroscopy , infrared , fourier transform , attenuated total reflection , chemistry , monolayer , reflection (computer programming) , absorption (acoustics) , langmuir–blodgett film , spectroscopy , absorption spectroscopy , analytical chemistry (journal) , materials science , optics , organic chemistry , physics , biochemistry , quantum mechanics , computer science , programming language
A quantitative study by reflection–absorption infrared spectroscopy (RAIRS) on multilayer systems of Langmuir–Blodgett (LB) poly(amino acid) films has been carried out. Thickness measurements of monolayer and multilayer systems have been made and the results obtained by two well‐known equations have been compared. Evolution of the α‐helix conformation as a function of temperature in the case of polybenzyl aspartate (PBA) and polybenzyl glutamate LB systems has also been studied by RAIRS. Finally, a Fourier transform infrared transmission study on PBA LB multilayers as a function of temperature has allowed us to draw some conclusions on the orientation of the CO bonds (amide I) with respect to the dipping direction.