Synthesis and properties of poly(phenylacetylene)s having dialkylamino groups.

Autor: Sugimoto, Toshiya, Koremoto, Toshihiro, Inoue, Takeshi, Nomura, Ryoji, Masuda, Toshio
Zdroj: Polymer Bulletin; Feb1999, Vol. 42 Issue 1, p55-60, 6p
Abstrakt: Poly(phenylacetylene)s bearing dialkylamino groups were prepared by the polymerization of p-( N,N-dialkylamino)phenylacetylenes with [Rh(nbd)Cl]2, and their electrochemical behavior was examined. Rh-catalyzed polymerization of p-( N,N-diethylamino)phenylacetylene (DEAPA) and p-( N,N-di- n-butylamino)phenylacetylene (DBAPA) in toluene in the presence of triethylamine gave good yields of the polymers (86 and 90%, respectively). Poly(DEAPA) was soluble in chloroform and dichloromethane, and poly(DBAPA) dissolved in various solvents such as toluene, THF, dichloromethane and chloroform. Poly(DEAPA) and poly(DBAPA) showed onset temperatures at 248 and 190°C, respectively, and absorptions around 300–400 nm. Electrochemical doping of the polymer films resulted in the shift of the absorptions to a region around 680 nm, which accompanied a color change of the polymer films from green ocher to deep blue. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
Externí odkaz: