|Title||Synthesis of highly regioregular poly[3-(4-alkoxyphenyl)-thiophene]s by oxidative catalysis using copper complexes|
|Publication Type||Articolo su Rivista peer-reviewed|
|Year of Publication||2013|
|Authors||Ricciotti, L., Borbone F., Carella A., Centore R., Roviello A., Barra M., Roviello G., Ferone C., Minarini Carla, and Morvillo P.|
|Journal||Journal of Polymer Science, Part A: Polymer Chemistry|
|Keywords||Air mobility, Bottom-contact, Catalysis, Conducting polymers, Conjugated polymers, Copper, Copper complexes, Field effect transistors, Gate dielectrics, Organic field effect transistors, Oxidative couplings, Poly-thiophene, Polymer thin films, Regioregularity, Synthesis (chemical), Synthesized polymers, Synthetic procedures, Thiophene|
A novel, easy, and cost-effective synthetic procedure is reported for the production of very highly regioregular poly[3-(4-alkoxyphenyl)thiophene]s by means of oxidative coupling. Four copper complexes were synthesized and used as catalysts to obtain polymers with higher regioregularity compared to the previous oxidative coupling methodologies reported in the literature and similar to that obtained by McCullough and Rieke methods in the synthesis of poly-3-alkylthiophenes. The regioregularity of the synthesized polymers was investigated by UV-Visible characterization on polymer thin films and 1H NMR analysis. The remarkable potentialities of these polymers have emerged from field-effect transistor mobility measurements operated on devices with bottom-contact configuration and hexamethyldisilazane-treated SiO 2 gate dielectric, showing a well-defined p-type field-effect response and maximum mobility values in air higher than 10-4 cm 2 V-1 s-1. © 2013 Wiley Periodicals, Inc.
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