Structure of Barium Stearate Films at the Air/Water Interface Investigated by Polarization Modulation Infrared Spectroscopy and π−AIsotherms

Langmuir ◽  
2001 ◽  
Vol 17 (9) ◽  
pp. 2688-2693 ◽  
Author(s):  
Yanzhi Ren ◽  
Ken-ichi Iimura ◽  
Teiji Kato
Keyword(s):  
Infrared Spectroscopy ◽  
Polarization Modulation ◽  
Water Interface ◽  
Air Water Interface ◽  
Barium Stearate

Investigations at the air/water interface using polarization modulation IR spectroscopy

1996 ◽  
Vol 92 (4) ◽  
pp. 525 ◽  
Author(s):  
Daniel Blaudez ◽  
Jean-Marie Turlet ◽  
Jean Dufourcq ◽  
Delphine Bard ◽  
Thierry Buffeteau ◽  
...  
Keyword(s):  
Ir Spectroscopy ◽  
Polarization Modulation ◽  
Water Interface ◽  
Air Water Interface

scholarly journals Multilayer formation by a compressed monolayer of poly-∈-benzyloxycarbonyl-l-lysine

1968 ◽  
Vol 110 (4) ◽  
pp. 733-737 ◽  
Author(s):  
B. R. Malcolm
Keyword(s):  
Infrared Spectroscopy ◽  
Electron Diffraction ◽  
Helical Conformation ◽  
Water Interface ◽  
Ordered Arrays ◽  
Molecular Monolayers ◽  
Air Water Interface ◽  
Polarized Infrared Spectroscopy ◽  
Multilayer Formation ◽  
Perfect Plastic

Molecular monolayers of poly-∈-benzyloxycarbonyl-l-lysine were studied at the air/water interface. Deuterium-exchange measurements and the surface area of the monolayer are consistent with a structure consisting of condensed ordered arrays of α-helices. Collapsed films removed from the surface and air-dried were examined by polarized infrared spectroscopy and electron diffraction and found to consist of molecules in the α-helical conformation. There is no indication of a conformational change during compression of the monolayer, and a series of transitions found in the force–area curve are interpreted as the consecutive formation of additional layers of molecules. Some of the factors that influence this almost perfect plastic behaviour are discussed.

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