Synthesis and Characterization of a Polyacetylene Derivative with Phenylazobenzene Moieties
A new polyacetylene derivative was prepared by the activated polymerization of 2-ethynylpyridine by using 4-(phenylazo)benzoyl chloride without any additional initiator or catalyst in high yield. The chemical structure of poly[2-ethynyl-N-(4-(phenylazo)benzoyl) pyridinium chloride [PEPABPC]
was characterized by such instrumental methods as NMR, IR, and UV-visible spectroscopies to have a conjugated polymer backbone system with the designed azobenzene moieties. The electrooptical and electrochemical properties of PEPABPC were studied. The photoluminescence spectrum showed that
the PL peak is at 597 nm corresponding to the photon energy of 2.07 eV. The cyclovoltammograms of PEPABPC exhibited the irreversible electrochemical behaviors between the oxidation and reduction peaks. The oxidation current density of PEPABPC versus the scan rates is approximately linear relationship
in the range of 30 mV/sec–150 mV/sec. It was found that the the kinetics of the redox process of this polymer is controlled by the reactant diffusion process from the oxidation current density of PEPABPC versus the scan rates.
Keywords: 2-ETHYNYLPYRIDINE; 4-(PHENYLAZO)BENZOYL CHLORIDE; CYCLOVOLTAMMOGRAM; PHOTOLUMINESCENCE; POLYACETYLENE
Document Type: Research Article
Publication date: 01 August 2011
- Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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