Abstract
Two-layer Langmuir-Blodgett films of cadmium arachidate were deposited onto hydrophobic glass plates. The adhesional stability of the films has been studied by wetting tension measurements, X-ray photoelectron spectroscopy (XPS), and atomic force microscopy (AFM). Partial detachment of the Langmuir-Blodgett layer while immersing the plate repeatedly into water or aqueous electrolyte solutions was deduced from the increase in the wettability and the decrease in the surface tension of the immersion liquid. Surface coverages obtained from XPS data and shown by AFM images are in agreement with the expectation based on tensiometric measurements of arachidate release from the substrate. AFM investigations revealed a distinct difference in the structure of the layer depending on whether water or an aqueous solution of NaCl and CaCl2 was applied in the stability test, providing evidence for the dissolution or the detachment type of the removal of the Langmuir-Blodgett film. The contact of a sessile droplet with the Langmuir-Blodgett film induced no detectable change in the contact angle or the surface tension of the liquid, demonstrating the role of a moving contact line in the degradation of the Langmuir-Blodgett film.
| Original language | English |
|---|---|
| Pages (from-to) | 127-133 |
| Number of pages | 7 |
| Journal | Progress in Colloid and Polymer Science |
| Volume | 125 |
| DOIs | |
| Publication status | Published - 2004 |
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Keywords
- Adhesional stability
- Atomic force microscopy
- Cadmium arachidate
- Langmuir-Blodgett films
- Wettability
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Chemistry (miscellaneous)
- Colloid and Surface Chemistry
- Polymers and Plastics
Cite this
Adhesional stability of cadmium arachidate Langmuir-Blodgett layers. / Kiss, E.; Szalma, József; Keresztes, Z.; Kálmán, E.; Mohai, M.; Bertóti, I.
In: Progress in Colloid and Polymer Science, Vol. 125, 2004, p. 127-133.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Adhesional stability of cadmium arachidate Langmuir-Blodgett layers
AU - Kiss, E.
AU - Szalma, József
AU - Keresztes, Z.
AU - Kálmán, E.
AU - Mohai, M.
AU - Bertóti, I.
PY - 2004
Y1 - 2004
N2 - Two-layer Langmuir-Blodgett films of cadmium arachidate were deposited onto hydrophobic glass plates. The adhesional stability of the films has been studied by wetting tension measurements, X-ray photoelectron spectroscopy (XPS), and atomic force microscopy (AFM). Partial detachment of the Langmuir-Blodgett layer while immersing the plate repeatedly into water or aqueous electrolyte solutions was deduced from the increase in the wettability and the decrease in the surface tension of the immersion liquid. Surface coverages obtained from XPS data and shown by AFM images are in agreement with the expectation based on tensiometric measurements of arachidate release from the substrate. AFM investigations revealed a distinct difference in the structure of the layer depending on whether water or an aqueous solution of NaCl and CaCl2 was applied in the stability test, providing evidence for the dissolution or the detachment type of the removal of the Langmuir-Blodgett film. The contact of a sessile droplet with the Langmuir-Blodgett film induced no detectable change in the contact angle or the surface tension of the liquid, demonstrating the role of a moving contact line in the degradation of the Langmuir-Blodgett film.
AB - Two-layer Langmuir-Blodgett films of cadmium arachidate were deposited onto hydrophobic glass plates. The adhesional stability of the films has been studied by wetting tension measurements, X-ray photoelectron spectroscopy (XPS), and atomic force microscopy (AFM). Partial detachment of the Langmuir-Blodgett layer while immersing the plate repeatedly into water or aqueous electrolyte solutions was deduced from the increase in the wettability and the decrease in the surface tension of the immersion liquid. Surface coverages obtained from XPS data and shown by AFM images are in agreement with the expectation based on tensiometric measurements of arachidate release from the substrate. AFM investigations revealed a distinct difference in the structure of the layer depending on whether water or an aqueous solution of NaCl and CaCl2 was applied in the stability test, providing evidence for the dissolution or the detachment type of the removal of the Langmuir-Blodgett film. The contact of a sessile droplet with the Langmuir-Blodgett film induced no detectable change in the contact angle or the surface tension of the liquid, demonstrating the role of a moving contact line in the degradation of the Langmuir-Blodgett film.
KW - Adhesional stability
KW - Atomic force microscopy
KW - Cadmium arachidate
KW - Langmuir-Blodgett films
KW - Wettability
UR - http://www.scopus.com/inward/record.url?scp=4644366257&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4644366257&partnerID=8YFLogxK
U2 - 10.1007/b13945
DO - 10.1007/b13945
M3 - Article
AN - SCOPUS:4644366257
VL - 125
SP - 127
EP - 133
JO - Progress in Colloid and Polymer Science
JF - Progress in Colloid and Polymer Science
SN - 0340-255X
ER -