BIS(P-TOLUENE SULFONATE) DIACETYLENE.

Coherent thin films of poly left bracket bis(p-toluene sulfonate) diacetylene right bracket were successfully formed by modified Langmuir-Blodgett techniques using two methods: (i) photopolymerization of the monomer film at the gas/liquid interface and then transfer to a solid substrate, and (ii) transfer of the monomer film to the solid substrate and subsequent photopolymerization on the substrate itself. The films thus obtained were characterized by traditional force-area isotherms while on pure water subphases. Segments were transferred at either 1 or 10 dyn/cm surface pressure, in different stages of photopolymerization, to glass or germanium substrates. The films on the substrate were characterized by the methods of multiple attenuated-internal-reflection infrared spectroscopy, ellipsometry, contact-potential measurement, and laser Raman spectroscopy.