Abstract
Angular dependent X-ray photoelectron spectra were obtained for the Langmuir-Blodgett (LB or built-up) film of a fluorocarbon amphiphile with two fluoroalkyl chains and a poly(vinyl alcohol)/(fluorocarbon amphiphile) composite thin film. A simple layer model was proposed to estimate the photoelectron mean free path in fluorocarbon bilayers. A comparison of the angular dependences of the observed XPS intensity with the calculated intensity for built-up film revealed that the photoelectron mean free path for Claphotoelectron (kinetic energy of ca. 970 eV) in built-up film is ca. 4.0 nm. Fluorocarbon amphiphilic molecules in the composite thin film form highly oriented bilayer lamella. The surface enrichment of fluorocarbon amphiphile in the surface of the composite thin film facing the air was confirmed by X-ray photoelectron spectroscopy. Application of layer models to the calculation of the composition profile of the composite thin film revealed that the surface of the composite thin film which contains more than 19 wt % amphiphile was completely covered with an oriented bilayer of the amphiphile.
| Original language | English |
|---|---|
| Pages (from-to) | 617-622 |
| Number of pages | 6 |
| Journal | Macromolecules |
| Volume | 22 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Mar 1 1989 |
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All Science Journal Classification (ASJC) codes
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry
Cite this
Analysis of the Surface Structure of a Built-Up Film of Fluorocarbon Amphiphile and Polymer/ (Fluorocarbon Amphiphile) Composite Thin Film by Means of X-ray Photoelectron Spectroscopy. / Takahara, Atsushi; Morotomi, Naoaki; Hiraoka, Shoji; Higashi, Nobuyuki; Kunitake, Toyoki; Kaiivama, Tisato.
In: Macromolecules, Vol. 22, No. 2, 01.03.1989, p. 617-622.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Analysis of the Surface Structure of a Built-Up Film of Fluorocarbon Amphiphile and Polymer/ (Fluorocarbon Amphiphile) Composite Thin Film by Means of X-ray Photoelectron Spectroscopy
AU - Takahara, Atsushi
AU - Morotomi, Naoaki
AU - Hiraoka, Shoji
AU - Higashi, Nobuyuki
AU - Kunitake, Toyoki
AU - Kaiivama, Tisato
PY - 1989/3/1
Y1 - 1989/3/1
N2 - Angular dependent X-ray photoelectron spectra were obtained for the Langmuir-Blodgett (LB or built-up) film of a fluorocarbon amphiphile with two fluoroalkyl chains and a poly(vinyl alcohol)/(fluorocarbon amphiphile) composite thin film. A simple layer model was proposed to estimate the photoelectron mean free path in fluorocarbon bilayers. A comparison of the angular dependences of the observed XPS intensity with the calculated intensity for built-up film revealed that the photoelectron mean free path for Claphotoelectron (kinetic energy of ca. 970 eV) in built-up film is ca. 4.0 nm. Fluorocarbon amphiphilic molecules in the composite thin film form highly oriented bilayer lamella. The surface enrichment of fluorocarbon amphiphile in the surface of the composite thin film facing the air was confirmed by X-ray photoelectron spectroscopy. Application of layer models to the calculation of the composition profile of the composite thin film revealed that the surface of the composite thin film which contains more than 19 wt % amphiphile was completely covered with an oriented bilayer of the amphiphile.
AB - Angular dependent X-ray photoelectron spectra were obtained for the Langmuir-Blodgett (LB or built-up) film of a fluorocarbon amphiphile with two fluoroalkyl chains and a poly(vinyl alcohol)/(fluorocarbon amphiphile) composite thin film. A simple layer model was proposed to estimate the photoelectron mean free path in fluorocarbon bilayers. A comparison of the angular dependences of the observed XPS intensity with the calculated intensity for built-up film revealed that the photoelectron mean free path for Claphotoelectron (kinetic energy of ca. 970 eV) in built-up film is ca. 4.0 nm. Fluorocarbon amphiphilic molecules in the composite thin film form highly oriented bilayer lamella. The surface enrichment of fluorocarbon amphiphile in the surface of the composite thin film facing the air was confirmed by X-ray photoelectron spectroscopy. Application of layer models to the calculation of the composition profile of the composite thin film revealed that the surface of the composite thin film which contains more than 19 wt % amphiphile was completely covered with an oriented bilayer of the amphiphile.
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U2 - 10.1021/ma00192a018
DO - 10.1021/ma00192a018
M3 - Article
AN - SCOPUS:0024608627
VL - 22
SP - 617
EP - 622
JO - Macromolecules
JF - Macromolecules
SN - 0024-9297
IS - 2
ER -