Synthesis of Novel Low-band-Gap Thiophene-based Oligomers and Copolymers

• 作 者: I.Kmínek V.Cimrová D.Vyprachicky P.Pavlaková
• 机 构: Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic Heyrovského nám.2,CZ
• 出 处: 复旦学报(自然科学版)
• 发表日期: 2007年05期
• 关键词: copolymer ethylhexyl thiophene derivative analogues propane vinyl Suzuki alterna

1 Results In this contribution,the synthesis and characterization of low-band-gap oligothiophenes and copolymers based on fluorene and thiophene units are reported.First,5,5′-dibromo derivative of 1 was synthesised and used as a building block for synthesis of quinquethiophene and septithiophene analogues of 1 and the synthesis of a novel low band-gap polymer - soluble alternating copolymer 3,which was prepared by the Suzuki coupling of 5,5′-dibromo derivative of 1 with bis(propane-1,3-diyl) 9,9-bis(2-ethylhexyl)fluorene-2,7-bisboronate.Further,two soluble random copolymers 4 of 3-(3-methylbutyl)thiophene with 3-[2-(pyren-1-yl)vinyl]thiophene were prepared by Grignard metathesis copolymerization of corresponding dibromo monomers.See Fig.1.

1 Results In this contribution, the synthesis and characterization of low-band-gap oligothiophenes and copolymers based on fluorene and thiophene units are reported. First, 5,5’-dibromo derivative of 1 was synthesized and used as a building block for synthesis of quinquethiophene and septithiophene analogues of 1 and the synthesis of a novel low band-gap polymer - soluble alternating copolymer 3, which was prepared by the Suzuki coupling of 5,5’-dibromo derivative of 1 with bis (propane-1,3-diyl (2-ethylhexyl) fluorene-2,7-bisboronate.Further, two soluble random copolymers 4 of 3- (3-methylbutyl) thiophene with 3- [2- thiophene were prepared by Grignard metathesis copolymerization of corresponding dibromo monomers.