DERIVATIVES OF POLY(PYRROLE) WITH DECONJUGATED CARBONYL SUBSTITUENTS IN BETA-POSITION

Date

1993-03-22

Author

VOIGT, M
GEISSLER, U
HAASE, V
VOIGT, B
HALLENSLEBEN, ML
Toppare, Levent Kamil

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

105
views

0
downloads

Four omega-(3-pyrrolyl)esters were investigated by cyclic voltammetry, electron microscopy and conductivity measurements. The corresponding poly(pyrrole) derivatives exhibit enhanced conductivities compared to poly(3-acylpyrrole)s, and their electrochemical behavior resembles that of poly(3-alkylpyrrole)s rather than the poly(3-acylpyrrole) derivatives. Ester saponification occurring during electropolymerization was examined by gas chromatography.

Subject Keywords

Mechanical Engineering, Materials Chemistry, Mechanics of Materials, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Metals and Alloys

URI

https://hdl.handle.net/11511/48663

Journal

SYNTHETIC METALS

DOI

https://doi.org/10.1016/0379-6779(93)90265-x

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Synthesis of a regular polymer containing pseudo-polyether cages Cihaner, A; Önal, Ahmet Muhtar (Elsevier BV, 2005-04-20) A new compound consisting of 2-thienyl units linked by polyether bridge has been synthesized and its electrochemical polymerization was performed via constant potential electrolysis (CPE) in an electrolytic solution containing 0.1 M tetrabutylammonium hexafluorophosphate (TBAPF(6)) dissolved in CH3CN. Chemical polymerization was carried out using FeCl3 as oxidizing agent. It is found that both methods gave the same polymer product without any cleavage of the polyether bridge between thiophene (Th) rings. Al...
A CONDUCTING COMPOSITE OF POLYPYRROLE .1. SYNTHESIS AND CHARACTERIZATION SELAMPINAR, F; Akbulut, Ural; YALCIN, T; SUZER, S; Toppare, Levent Kamil (Elsevier BV, 1994-02-01) A conducting composite of polypyrrole was prepared via electrochemical methods. A polyamide was used as the insulating matrix polymer. The characterization of the composite was done by FT-IR, SEM, TGA, DSC and pyrolysis studies. Conductivity and solubility studies together with spectroscopic methods reveal that H bonding exists between the two polymers and a possible grafting to a certain extent.
Characteristics of HfO2 and SiO2 on p-type silicon wafers using terahertz spectroscopy Altan, Hakan; Pham, D.; Grebel, H.; Federici, J. F. (IOP Publishing, 2007-05-01) The effect of high-kappa dielectric HfO2 films on 200 mm diameter p-type silicon substrates was investigated and compared with conventional dielectric material, SiO2. We employed all-optical characterization methods using terahertz (THz) time-domain spectroscopy and visible cw pump/THz probe spectroscopy. Measurements were performed on two sets of samples, each set containing both HfO2 and SiO2 coated wafers with varying thickness of oxide layer. One set had a protective coating of either photoresist or Si3...
Properties of YBCO superconductors prepared by ammonium nitrate melt and solid-state reaction methods Sozeri, Huseyin; Ozkan, Husnu; Ghazanfari, Nader (Elsevier BV, 2007-01-31) Ceramic YBCO superconductors were prepared by: (1) ammonium nitrate melt, (2) solid-state reaction methods and the properties of the samples obtained were compared. Under the same annealing conditions single phase YBCO was synthesized at a lower temperature by the former method. Moreover, at 900 degrees C Y-123 phase and the initially adjusted Y-211 additive could be formed using ammonium nitrate melt, but not with the solid-state method which leads Y-123 at a higher temperature (950 degrees C) without Y-21...
Synthesis and characterization of conducting copolymers of succinic acid bis-(4-pyrrol-1-yl-phenyl) ester and their electrochromic properties Ertas, M; Çırpan, Ali; Toppare, Levent Kamil (Elsevier BV, 2004-05-07) A new dipyrrolyl monomer was synthesized via the reaction between 4-pyrrol-1-yl phenol and butanedioyl dichloride. Electrochemical behavior of this monomer, succinic acid bis-(4-pyrrol-1-yl-phenyl) ester (SM) was studied. Homopolymerization was achieved by chemical and constant Current electrolysis methods. Copolymerization of SM with thiophene was performed by constant potential electrolysis in acetonitrile (AN)-tetrabutylammonium tetrafluoroborate (TBAFB) and dichloromethane (DCM)-TBAFB, solvent-electroly...

Citation Formats

M. VOIGT, U. GEISSLER, V. HAASE, B. VOIGT, M. HALLENSLEBEN, and L. K. Toppare, “DERIVATIVES OF POLY(PYRROLE) WITH DECONJUGATED CARBONYL SUBSTITUENTS IN BETA-POSITION,” SYNTHETIC METALS, pp. 1441–1446, 1993, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48663.