Synthesis and Polymerization of 3-Octylsubstituted Thiophene,Bithiophene and Terthiophene

Abstract

The synthesis of 3-octyl-thiophene, 3,3′-dioctyl-bithiophene and 3,4′,3″-tri(3-octy!)-terthiophene has been carried out by using the cross coupling reaction, catalyzed by nickel. These oligomers were polymerized by chemical oxidative method with FeCl₃ and electrochemically. The products were characterized by UV. ¹H-NMR, ¹³C-NMR and GPC. The behavior and optical properties of the polymers obtained by different polymerization methodologies is discussed.