Synthesis and Solid-State Polymerization of ω-(1,3-Butadiynyl) Substituted 1-Alkanol and Alkanoic Acid

Article abstract of DOI:10.1246/bcsj.67.455

ω-(1,3-Butadiynyl) substituted 1-alkanol and alkanoic acid were synthesized and their polymerization behavior in crystals and in Langmuir-Blodgett (LB) films were investigated.Polymerization, using UV or γ-ray irradiation or thermal treatment, resulted in red- or golden-colored polymers.Since the absorption edge in the visible spectra of these polymers appeared at shorter wavelengths than those of the well known blue-colored polydiacetylenes, ?-conjugation is considered to be deteriorated to some extent.IR, X-ray diffraction, and solid-state 13C NMR measurements showed that the polymerization does not proceed in a single-crystal-to-single-crystal transition manner via regular 1,4-addition but with deterioration of the crystalline lattice.