MORPHOLOGY AND BINDING OF SPONTANEOUSLY ASSEMBLED MULTILAYERS OF CALIX-4-RESORCINARENES

Calix-4-resorcinarenes form multilayers (7-40 layers) by self-assembly from hydrophobic solvents such as hexane on various substrates. Hydro philic solvents such as ethanol reverse this process. Infrared and X-r ay photoelectron spectroscopy, together with X-ray and neutron reflect ometry measurements are described. Comparison is made with similar mea surements on Langmuir-Blodgett films of these materials. The aim of th is work was to study the structure and morphology of the multilayers i n the context of a model which has been proposed for their bilayer str ucture and which is based on the X-ray crystal structure of calix-4-re sorcinarene 1. These multilayers have been found to bind glutaric acid selectively.