Synthesis of Diacetylene-Substituted Polydi-acetylenes with Alkoxycarbonylurethane H. Kawanami, S. Okada, H. Matsuda, T. Doi, N. Kikuchi, K. Hayamizu, H. Oikawa, and H. Nakanishi [Mol. Cryst. Liq. Cryst., Vol.255, pp.103-112, 1994]
