Journal of Physical Chemistry, Vol.99, No.47, 17068-17070, 1995
Inplane Orientation of Molecules in Langmuir and Langmuir-Blodgett-Films by Shearing
Shearing of a Langmuir film by a rotating disk can induce orientation of surfactant molecules at the gas-water interface. Monolayers with such local anisotropy may be transferred onto a solid substrate by Langmuir-Blodgett techniques and give multilayer films which exhibit a preferred molecular orientation within the plane of the multilayers. This orientation process depends mainly on rotation speed and the distance between substrate and disk. This approach allows one, for the first time, to control in-plane ordering of Langmuir and Langmuir-Blodgett films.