Organization in pure and alternate deuterated cadmium arachidate monolayers on solid substrates and at the air/water interface studied by conventional and differential Fourier transform infrared spectroscopies

1996 ◽  
Vol 104 (24) ◽  
pp. 9983-9993 ◽  
Author(s):  
D. Blaudez ◽  
T. Buffeteau ◽  
N. Castaings ◽  
B. Desbat ◽  
J.‐M. Turlet
Keyword(s):  
Fourier Transform ◽  
Fourier Transform Infrared ◽  
Water Interface ◽  
Solid Substrates ◽  
Air Water Interface

External Reflection Fourier Transform Infrared Spectroscopy of Surfactants at the Air—Water Interface: Separation of Bulk and Adsorbed Surfactant Signals

2005 ◽  
Vol 59 (8) ◽  
pp. 993-1001 ◽  
Author(s):  
Richard A. Campbell ◽  
James P. R. Day ◽  
Colin D. Bain
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Linear Relationship ◽  
Fourier Transform Infrared Spectroscopy ◽  
Fourier Transform Infrared ◽  
Constant Density ◽  
Neutron Reflection ◽  
Fitting Procedure ◽  
Target Factor Analysis ◽  
Air Water Interface

External reflection Fourier transform infrared spectroscopy (ERFTIRS) has been used to obtain spectra of monolayers of the hydrocarbon surfactant octaethylene glycol monodecyl ether (C10E8) and the fluorocarbon surfactant ammonium perfluorononanoate (APFN) at the expanding liquid surface of an overflowing cylinder. The use of target factor analysis (TFA) to separate out the contributions of water, adsorbed surfactant, and dissolved surfactant is demonstrated. For both surfactants, there is a linear relationship between the component weight of the adsorbed surfactant, obtained by TFA, and the surface excess determined independently by ellipsometry or neutron reflection. This linear relationship suggests that the monolayers behave like isotropic films with a constant density. A sensitivity of less than 10% of a monolayer is demonstrated. The benefits of using a multivariate curve fitting procedure to analyze sets of ER-FTIR spectra are discussed and some potential pitfalls are identified. This technique is also applicable to static interfaces.

Hyperbranched Polyesters Terminated with Alkyl Chains of Different Length at the Air/Water Interface and on Solid Substrates

2014 ◽  
Vol 47 (15) ◽  
pp. 5256-5268 ◽  
Author(s):  
Anna Brzozowska ◽  
Jan Paczesny ◽  
Paweł Parzuchowski ◽  
Monika Kusznerczuk ◽  
Kostyantyn Nikiforov ◽  
...  
Keyword(s):  
Water Interface ◽  
Alkyl Chains ◽  
Hyperbranched Polyesters ◽  
Solid Substrates ◽  
Air Water Interface
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