Synthesis and photophysical properties of soluble low-bandgap thienothiophene polymers with various alkyl side-chain lengths
作者:Woo Jin Bae、Christopher Scilla、Volodimyr V. Duzhko、Won Ho Jo、E. Bryan Coughlin
DOI:10.1002/pola.24761
日期:2011.8.1
Grignard metathesis (GRIM) polymerization methods. The polymers are readily soluble in common organic solvents. The polymers synthesized by GRIM polymerization method (PTtx‐G) have narrower molecular weight distribution (Đ) with lower molecular weight (Mn) than those synthesized by oxidative polymerization (PTtx‐O). The band structures of the polymers with various lengths of alkyl side chains were investigated
我们报告了各种长度的烷基侧链的一类噻吩噻吩聚合物的简便合成和表征。通过两步操作合成了一系列2-烷基噻吩并[3,4- b ]噻吩单体(Ttx),总产率为28-37%。聚(2-烷基噻吩并[3,4- b ]噻吩)(PTtx,烷基:戊基,己基,庚基,辛基和十三烷基)是通过FeCl 3氧化聚合或格氏(Grignard)复分解(GRIM)聚合方法合成的。该聚合物容易溶于普通的有机溶剂。通过GRIM聚合方法(PTtx‐G)合成的聚合物具有较窄的分子量分布(Đ)和较低的分子量(M n),而不是通过氧化聚合(PTtx-O)合成的那些。通过紫外可见光谱,循环伏安法和紫外光电子能谱研究了具有不同长度烷基侧链的聚合物的能带结构。这些低带隙聚合物是有机晶体管,有机发光二极管和有机光伏电池的理想候选材料。©2011 Wiley Periodicals,Inc. J Polym Sci A部分:Polym Chem,2011年