4 years ago

A platform to synthesize a soluble poly(3,4-ethylenedioxythiophene) analogue

A platform to synthesize a soluble poly(3,4-ethylenedioxythiophene) analogue
Cevdet Kaynak, Salih Ertan, Atilla Cihaner
Alkyl-substituted polyhedral oligomeric silsesquioxane (POSS) cage is combined with 3,4-ethylenedioxythiophene under the same roof. The corresponding monomer called EDOT-POSS is used to get soluble poly(3,4-ethylenedioxythiophene) (PEDOT-POSS) analogue. Both chemically and electrochemically obtained polymers are soluble in common organic solvents like dichloromethane, chloroform, tetrahydrofuran, and so forth. The PEDOT-POSS has somewhat higher band gap (1.71 eV at 618 nm) than its parent PEDOT (1.60 eV at 627 nm) and as expected the PEDOT-POSS exhibits higher optical contrast (74% at 618 nm) and coloration efficiency (582 cm2/C for 100% switching), lower switching time (0.9 s), higher electrochemical stability (93% of its electroactivity retains after 5000 cycles under ambient conditions) when compared to the PEDOT. A number of advantages of the PEDOT-POSS over the PEDOT can make it a promising material in the areas of electro-optical applications. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017, 55, 3935–3941 Alkyl-substituted polyhedral oligomeric silsesquioxane is combined with EDOT in the same pot. A highly soluble PEDOT analogue without using any surfactants and dispersants is synthesized. Soluble fluorescent and robust polymer is blue at neutral state and highly transparent when oxidized.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/pola.28779

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