The surface pressure-area curve for the novel perfluorodiacetylene, C2
4F42, showed that a monolayer was formed on the surface of the water.
The monolayer was deposited on KRS-5, Al and quartz plates by the Lang
muir-Blodgett (LB) technique. The LB film on the KRS-5 plate showed ex
cellent water repellency with a contact angle of 162 degrees. Comparis
on of the reflection-absorption and transmission i.r. spectra showed t
hat the difluoromethylene chains in the C24F42 LB film were oriented p
erpendicular to the substrate surface. The C24F42 LB film on the quart
z plate was polymerized by u.v. irradiation giving a highly electrocon
ductive film without doping or further treatment. (C) 1998 Elsevier Sc
ience Ltd. All rights reserved.