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Influence of different organic solvents and oxidants on insulating and film-forming properties of PEDOT polymer
Högskolan i Borås, Institutionen Ingenjörshögskolan. (Polymer Group)
Högskolan i Borås, Institutionen Ingenjörshögskolan. (Polymer Group)
Högskolan i Borås, Institutionen Ingenjörshögskolan. (Polymer Group)
Vise andre og tillknytning
2013 (engelsk)Inngår i: Iranian polymer journal, ISSN 1026-1265, E-ISSN 1735-5265, Vol. 22, nr 8, s. 599-611Artikkel i tidsskrift (Fagfellevurdert) Published
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Abstract [en]

Processing of conjugate polymers has always been a challenge because of their poor solubility and infusibility in organic and inorganic solvents. The processibility and applications of intrinsically conductive polymers (ICPs) can be enhanced by producing their solutions or dispersions in different suitable solvents. It can also be achieved by preparing un-doped or electrically neutral polymers, which can further be transformed in semiconductor after oxidation/reduction reaction. The present study focuses on the preparation of active dispersions of poly (3,4-ethylenedioxythiophene) (PEDOT) conductive polymer in various organic solvents. For this purpose, the polymerization of 3,4-ethylenedioxythiophene (EDOT) monomer was carried out in three different organic solvents, ethanol, 1-butanol and acetonitrile with two commonly used oxidants, ferric (III) chloride (FeCl3) and ferric (III) p-toluenesulfonate (FepTS). In this regard, the oxidant and monomer solutions with variable molar concentrations (0.25, 0.5, 1.0 M) were prepared in particular solvents and then these solutions were mixed with different monomer/oxidant volume ratios. The obtained dispersions of PEDOT can readily be polymerized on the surface of different materials after solvent evaporation and a uniform film can be achieved. The effect of molar as well as volume concentrations of EDOT monomer and oxidant on insulating (undoped/neutral) and film forming properties of PEDOT was investigated. These dispersions were applied on a transparent PET film and cellulosic fibers (viscose), dried at room temperature and analyzed using scanning electron microscope (SEM), optical microscope and ATR-FTIR spectroscopic analysis. The electrical characterization of undoped PEDOT-coated fibers was performed on Keithly picoammeter. This study contributes to obtain a simpler and instantaneous polymerization method of PEDOT preparation and to enhance its application area.

sted, utgiver, år, opplag, sider
Springer , 2013. Vol. 22, nr 8, s. 599-611
Emneord [en]
PEDOT, Solution Polymerization, Organic solvents, PEDOT coating, Organic Electronics, Conductive Polymers
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URN: urn:nbn:se:hb:diva-1588DOI: 10.1007/s13726-013-0159-xISI: 000320580600006Lokal ID: 2320/12515OAI: oai:DiVA.org:hb-1588DiVA, id: diva2:869657
Tilgjengelig fra: 2015-11-13 Laget: 2015-11-13 Sist oppdatert: 2017-12-09bibliografisk kontrollert

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Bashir, TariqBakare, FatimatBaghaei, BehnazSkrifvars, Mikael

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