Phase separation and crystallization in mixed monolayers of FC and HC surfactants

Authors
Zhu, BY Zhang, P Wang, RX Liu, ZF Lai, LH
Citation
By. Zhu et al., Phase separation and crystallization in mixed monolayers of FC and HC surfactants, COLL SURF A, 157(1-3), 1999, pp. 63-71
Citations number
20
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN journal
09277757 → ACNP
Volume
157
Issue
1-3
Year of publication
1999
Pages
63 - 71
Database
ISI
SICI code
0927-7757(19991030)157:1-3<63:PSACIM>2.0.ZU;2-0
Abstract
Mixed insoluble monolayers of anionic fluorocarbon amphiphile (C8F17COOH) a nd anionic hydrocarbon amphiphile (C(18)H(37)SO(3)NA) were investigated by means of a Langmuir balance, atomic force microscopy (AFM) and friction for ce microscopy (FFM). pi-A curves and topographic images of monolayers were provided. These pictures and data provide strong experimental evidence for two-dimensional phase separation and crystallization. Further studies from the viewpoints of thermodynamics and molecular dynamics were conducted. An explanation and a mechanism for the observations is suggested. (C) 1999 Els evier Science B.V. All rights reserved.