Synthesis, Characterization, and Electrical Properties of Regioregular Alkyl-Substituted PEDOTt
作者:Ha-Young Son、Eunhee Lim、Kyeong K. Lee、Dong Hoon Choi、Sungkoo Lee
DOI:10.1166/jnn.2012.5644
日期:2012.4.1
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)CI2. 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 hexylsubstituted 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.
通过使用催化量的Ni(dppp)CI2,通过Grignard歧化反应(GRIM)合成了结构上交替共聚的3,4-亚乙基二氧噻吩和噻吩(EDOT和噻吩)的regiorregular己基取代聚(3,4-亚乙基二氧-2-噻吩噻吩)(PEDOTt)。通过1H NMR光谱、UV-vis光谱和XRD对产物进行了表征。这种烷基取代的共轭聚合物在常见有机溶剂中表现出溶解性增强。基于XRD数据,由于自组织,regiorregular己基取代的聚(3,4-亚乙基二氧-2-噻吩噻吩)(PEDOTt)比regiorrandom己基取代的PEDOTt表现出更好的结晶度。此外,regiorregular己基-PEDOTt通过碘掺杂具有0.788 S/cm的导电性。