Ordered Langmuir–Blodgett films derived from a mesogenic polymer amphiphile
作者:Ziad Ali-Adib、Peter M. Budd、Neil B. McKeown、Kamolrat Thanapprapasr
DOI:10.1039/b003220o
日期:——
The synthesis of a novel side-chain liquid crystalline polymer
in which cholesterol mesogenic units are linked to a styrene backbone by a
tris(ethyleneoxy) spacer is described. This amphiphilic polymer displays an
unusual discontinuity in its monolayer behaviour at the airâwater interface.
This behaviour appears to be associated with the attainment of a closely-packed
arrangement of the cholesterol units at higher values of surface pressure.
Glancing angle X-ray diffraction shows that a well-ordered Y-type
film is obtained if deposition is performed at a surface pressure above that
of the apparent rearrangement.