Synthesis of a regular polymer containing pseudo-polyether cages

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 CH 3C...

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Bibliographic Details
Published in:Synthetic metals 2005-04, Vol.150 (1), p.39-45
Main Authors: Cihaner, Atilla, Önal, Ahmet M.
Format: Article
Language:English
Subjects:
Applied sciences
Chemical polymerization
Electrochemical polymerization
ESR
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymer containing polyether cages
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary: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 CH 3CN. Chemical polymerization was carried out using FeCl 3 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. Although as synthesized polymers exhibited no conductivity, they gain conductivity via chemical doping using I 2 vapor exposure. The polymers were characterized using FT-IR spectroscopic technique and I 2 doping was monitored using in-situ electron spin resonance (ESR) spectroscopy. Thermal behavior of electrochemically prepared polymer was investigated using differential scanning calorimetry, DSC and thermogravimetric analysis, TGA.
ISSN:0379-6779
1879-3290
DOI:10.1016/j.synthmet.2004.12.014