Synthesis of star-shaped pyrrole and thiophene functionalized monomers and optoelectrochemical properties of corresponding copolymers

Date

2009-04-15

Author

Ak, Metin
Toppare, Levent Kamil

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Star-shaped thiophene and pyrrole functionalized monomers namely 2,4,6-tris(4-(1H-pyrrol-1-yl)phenoxy)-1,3,5-triazine (TriaPy) and 2,4,6-tris(4-(1H-pyrrol-1-yl)phenoxy)-1,3,5-triazine (TriaTh) were synthesized from 2,4,6-trichloro-1,3,5-triazine, thiophen-3-ylmethanol and 4-(1H-pyrrol-1-yl)phenol. Electrochemical copolymerization of monomers with thiophene and pyrrole was achieved in tetrabutylammonium tetrafluoroborate/acetonitrile (TBAFB/AN). Resulting copolymers were characterized by Fourier transform infrared (FTIR) spectrometer, cyclic voltammetry (CV) and conductivity measurements. Spectroelectrochemical analysis reflected that copolymer films have low lambda(max) for pi-pi* electronic transitions accompanied with a rather high band gap compared to polythiophene and polypyrrole. Switching abilities of copolymer films were evaluated by a kinetic study via measuring the transmittance (%T) at the maximum contrast.

Subject Keywords

General Materials Science, Condensed Matter Physics

URI

https://hdl.handle.net/11511/35608

Journal

MATERIALS CHEMISTRY AND PHYSICS

DOI

https://doi.org/10.1016/j.matchemphys.2008.10.041

Collections

Department of Chemistry, Article

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Citation Formats

M. Ak and L. K. Toppare, “Synthesis of star-shaped pyrrole and thiophene functionalized monomers and optoelectrochemical properties of corresponding copolymers,” MATERIALS CHEMISTRY AND PHYSICS, pp. 789–794, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/35608.