M. Arbelhaddad et al., DESIGN OF MIXED LANGMUIR FILMS EXPOSING SEGREGATED HYDROXYL DOMAINS FOR INDUCING ICE NUCLEATION, JOURNAL OF PHYSICAL CHEMISTRY B, 102(9), 1998, pp. 1543-1548
The structure of mixed Langmuir films of the normal alkane C32H66 With
different quantities of the normal alcohol C31H63OH Or the diol HO(CH
2)(30)OH on pure water were determined in situ by applying surface-sen
sitive methods that include grazing incidence X-ray diffraction (GIXD)
and infrared reflection-absorption spectroscopy (IRRAS) and by induce
d freezing of water drops. Random solid solutions were formed between
the alkane and C31H63OH On the other hand, segregation of the two comp
onents was observed in the mixed systems of the alkane and HO(CH2)(30)
OH. These findings suggest new ways for the design of hydrophobic surf
aces bearing hydrophilic sites, which may be appropriate for epitaxial
ice nucleation and cloud seeding purposes.