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Synthesis and Application of Oligo(3-Methylthiothiophene) Using Palladium Catalyst  

Park, Sang-Ho (Department of Polymer Science & Engineering, Sungkyunkwan University)
Jung, Moon-Young (Department of Polymer Science & Engineering, Sungkyunkwan University)
Bae, Jin-Young (Department of Polymer Science & Engineering, Sungkyunkwan University)
Publication Information
Polymer(Korea) / v.31, no.6, 2007 , pp. 469-473 More about this Journal
Abstract
In this study, oligo(3-methylthiothiophene) was synthesized from thiophene derivative according to the method of reductive coupling using palladium catalyst. For the preparation of monomer, 3-methylthiothiophene was first synthesized through the metal-halogen exchange reaction of 3-bromothiophene with n-butyllithiuim, and the corresponding 2,5-dibromo-3-methylthiothiophene was formed by bromination. Their synthesis and characterization were determined by $^1H-NMR$ and ATR analyses. Thermal stability of the oligothiophene was monitored by thermogravimetric analysis (TGA). Thermal evaporation of the oligo(3-methylthiothiophene) on the substrate was attempted for OTFT applications.
Keywords
OTFT; thiophene; palladium; coupling;
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