Conducting copolymers of thiophene functionalized polystyrenes with thiophene

Sahin, E
Camurlu, P
Toppare, Levent Kamil
Mercore, VM
Cianga, I
Yagci, Y
Thiophene capped polystyrenes (TCP1, TCP2) were synthesized by atom transfer radical polymerization of styrene followed by Suzuki condensation with 2-thiophene boronic acid. Electrically conducting graft polymers of TCP1 and TCP2 with thiophene were achieved by electrochemical methods. Characterization of the graft polymers were performed by cyclic voltammetry (CV), Fourier transform infrared spectroscopy, differential scanning calorimetry, scanning electron microscopy analyses. Electrochromic properties of the conducting copolymers were investigated by spectroelectrochemistry, kinetic and colorimetry studies. The observed lambda(max) and band gap values were found to be at 432 nm, 2.10 eV and 453 nm, 2.13 eV for P(TCP1 -co-Th) and P(TCP2-co-Th), respectively. Also, we successfully established the utilization of dual-type complementary colored polymer electrochromic devices using P(TCP I co-Th)/poly(3,4-ethylenedioxythiophene) (PEDOT) in sandwich configuration. The switching ability, stability and optical memory of the electrochromic device were investigated with UV-Vis spectrophotometer and CV. P(TCP1-co-Th)/PEDOT switches between blue and brown.


Synthesis, characterization and optoelectrochemical properties of poly(1,6-bis(2,5-di(thiophen-2-yl)-1H-pyrrol-1-yl)hexane) and its copolymer with EDOT
Ak, Metin; Sahmetlioglu, Ertugrul; Toppare, Levent Kamil (Elsevier BV, 2008-09-01)
A new polythiophene derivative was synthesized by electrochemical oxidative polymerization of 1,6-bis(2,5-di(thiophen-2-yl)-1H-pyrrol-1-yl)hexane (TPH). The structure of the monomer was elucidated by H-1, C-13, MR and mass analyses. The polymer P(TPH) and its copolymer with 3,4-ethylenedioxythiophene (P(TPH-co-EDOT)) were synthesized via potentiostatic electrochemical polymerization. Characterizations of the resulting polymers were performed by cyclic voltammetry (CV), FTIR, UV-vis spectroscopies; and condu...
Synthesis and polymerization of 2-and 3-substituted thiophene derivatives linked by polyether bridges
Tirkeş, Süha; Önal, Ahmet Muhtar (Elsevier BV, 2004-11-15)
New compounds consisting of 2- and 3-thienyl units linked by polyether bridges have been synthesized and their electrochemical polymerization was performed via constant potential electrolysis (CPE) in an electrolytic solution containing 0.1 M tetrabutylammonium hexafluorophosphate (TBAPF(6)) dissolved in CH3CN. 2-Thienyl monomers (I and II), but not 3-thienyl monomers (III and IV), were also polymerized via chemical oxidation, which yielded broken pi-conjugated polymer products. The polymers were characteri...
Conducting copolymers of thiophene-functionalized polystyrene
Papila, O; Toppare, Levent Kamil; Yagci, Y; Cianga, L (Informa UK Limited, 2004-01-01)
The syntheses of conducting copolymers of thiophene-functionalized polystyrene and pyrrole (PS/PPy) were achieved using p-toluene sulfonic acid (PTSA) as the supporting electrolyte via constant potential electrolysis technique. Characterization of the samples was performed by a combination of techniques: cyclic voliammetry (CV), thermogravimetric analysis (TGA), differential scanning colorimetry (DSC), scanning electron microscopy (SEM), NMR, and FT-IR analyses. The conductivities were measured by the four-...
Spectroelectrochemical investigation of the anodic oxidation of dibenzo-18-crown-6
Cihaner, A; Önal, Ahmet Muhtar (Elsevier BV, 2004-10-01)
Poly(dibenzo-18-crown-6) (poly-DB18C6) was synthesized by electrochemical oxidation of dibenzo-18-crown-6 (DB18C6) using a mixture of acetonitrile and dichloromethane as the solvent and tetrabutylammonium tetrafluoroborate (TBABF(4)) or tetrabutylammonium hexafluorophosphate (TBAPF(6)) as supporting electrolyte. The anodic polymerization of DB18C6 was investigated using in situ ESR and in situ UV-Vis spectroscopic techniques. Spectroelectrochemical (SPEL), properties and thermal analysis of the resulting po...
Magnesium substituted cobalt spinel nanostructures for electrocatalytic water oxidation
Ekebas, Elif; Çetin, Asude; Önal, Ahmet Muhtar; Nalbant Esentürk, Emren (Springer Science and Business Media LLC, 2019-03-01)
Two MgCo2O4 nanostructures in different morphologies have been synthesized by using two different structure-directing agents (urea (U) and nitrilotriacetic acid (NTA)) as new catalysts for water oxidation reactions. The properties of these nanostructures were discovered and characterized by a combination of analytical techniques, being TEM, SEM, EDX, XRD, XPS, and BET. While the urea-stabilized MgCo2O4 (U-MgCo2O4) nanostructures have spiky morphology, the NTA-stabilized ones (NTA-MgCo2O4) have wire-like str...
Citation Formats
E. Sahin, P. Camurlu, L. K. Toppare, V. Mercore, I. Cianga, and Y. Yagci, “Conducting copolymers of thiophene functionalized polystyrenes with thiophene,” JOURNAL OF ELECTROANALYTICAL CHEMISTRY, pp. 189–197, 2005, Accessed: 00, 2020. [Online]. Available: