Author/Authors :
Matsuda، نويسنده , , H. and Shimada، نويسنده , , S. and Takeda، نويسنده , , H. and Masaki، نويسنده , , A. and Van Keuren، نويسنده , , E. and Yamada، نويسنده , , S. and Hayamizu، نويسنده , , K. and Nakanishi، نويسنده , , F. and Okada، نويسنده , , S. and Nakanishi، نويسنده , , H.، نويسنده ,
Abstract :
In order to reduce the band gap of polydiacetylene, a new class of polydiacetylene derivative having sulfur atom directly bound to the main chain was synthesized. The solid state polymerization of the new diacetylenes occurs in the manner of the topochemical and topotactic 1,4-addition reaction. The evidence of the electron donating effect of the sulfur atoms of the polydiacetylenes is obvious in the red shift of the absorption maximum and the asymmetrical bond length alternation of the main chain.
