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Titolo:
Texture of fatty acid Langmuir films studied by means of Brewster angle reflectometry
Autore:
Katholy, S; Reiche, J; Brehmer, L;
Indirizzi:
Univ Potsdam, Inst Phys, D-14469 Potsdam, Germany Univ Potsdam Potsdam Germany D-14469 Inst Phys, D-14469 Potsdam, Germany
Titolo Testata:
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
fascicolo: 1-3, volume: 171, anno: 2000,
pagine: 87 - 95
SICI:
0927-7757(20001010)171:1-3<87:TOFALF>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
AIR-WATER-INTERFACE; URANYL ARACHIDATE; DIRECT VISUALIZATION; MONOLAYERS; MULTILAYERS; MICROSCOPY;
Keywords:
Langmuir films; Brewster angle reflectometry; reflection isotherm;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Reiche, J Univ Potsdam, Inst Phys, Neuen Palais 10, D-14469 Potsdam, Germany Univ Potsdam Neuen Palais 10 Potsdam Germany D-14469 m, Germany
Citazione:
S. Katholy et al., "Texture of fatty acid Langmuir films studied by means of Brewster angle reflectometry", COLL SURF A, 171(1-3), 2000, pp. 87-95

Abstract

The compression induced change of the integral reflected intensity of an arachidic acid Langmuir film at the Brewster angle - the so-called reflection isotherm - is analysed to get information about the in-plane anisotropy of the Langmuir film caused by compression and expansion cycles. Based on the matrix method of Berreman a theoretical model, connecting the shape of the reflection isotherms with the domain orientation distribution in the monofilm, is developed. Furthermore, the influence of different counter-ions onthe reflection isotherms is studied. The data indicate the formation of ion-specific domain orientation distributions (textures). The reflection isotherms are sensitive to changes in the Langmuir films supramolecular structure which are not reflected by the surface pressure-area isotherms. (C) 2000Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 11:52:32