PREPARATION AND SURFACE CHARACTERISTICS OF PERFLUOROALKANE LANGMUIR-BLODGETT-FILMS

Authors
TERASAWA N HAYAKAWA Y FUKAYA H HAYASHI E ABE T
Citation
N. Terasawa et al., PREPARATION AND SURFACE CHARACTERISTICS OF PERFLUOROALKANE LANGMUIR-BLODGETT-FILMS, Journal of fluorine chemistry, 82(2), 1997, pp. 189-191
Citations number
8
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Journal of fluorine chemistry → ACNP
ISSN journal
00221139
Volume
82
Issue
2
Year of publication
1997
Pages
189 - 191
Database
ISI
SICI code
0022-1139(1997)82:2<189:PASCOP>2.0.ZU;2-U
Abstract
Surface pressure-area curves for the perfluoroalkanes C16F34, C20F42 a nd C24F50 showed that monolayers were formed on the surface of water. The monolayers of C20F42 and C24F50 were deposited on various substrat es by the Langmuir-Blodgett (LB) technique; LB films on hydrophobized mica show excellent water repellency with contact angles of water of 1 55 degrees and 153 degrees respectively. It was shown by comparison of the reflection-absorption and transmission IR spectra that difluorome thylene chains in the perfluoroalkane LB films are oriented perpendicu lar to the substrate.