title: Synthesis, characterization, and electrical properties of regioregular alkyl-substituted PEDOTt.
abstract: The regioregular hexyl-substituted poly(3,4-ethylenedioxy-2-thiophenylthiophene) (PEDOTt), structurally alternating copolymer of EDOT and thiophene, was synthesized via the Grignard Metathesis (GRIM) using catalytic amounts of Ni(dppp)Cl2. The products were characterized by 1H NMR spectroscopy, UV-vis spectroscopy and XRD. The alkyl-substituted conjugated polymer showed an enhancement of solubility in common organic solvents. Based on XRD data, the regioregular hexyl-substituted poly(3,4-ethylenedioxy-2-thiophenylthiophene) (PEDOTt) shows better crystallinity than the regiorandom hexyl-substituted PEDOTt owing to self-ordering. In addition, regioregular hexyl-PEDOTt has a conductivity of 0.788 S/cm by iodine doping.
authors: Green Chemistry and Engineering R&D Department, Korea Institute of Industrial Technology (KITECH), Cheonan-Si, Chungnam 331-825, Korea.
authors: Ha-Young
authors: HY
authors: Son
authors: Eunhee
authors: E
authors: Lim
authors: Kyeong K
authors: KK
authors: Lee
authors: Dong Hoon
authors: DH
authors: Choi
authors: Sungkoo
authors: S
authors: Lee