Modeling and characterization of polyelectrolyte complex of polyaniline and sulfonated polystyrene produced by palm tree peroxidaseстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Polyelectrolyte complexes of polyaniline (PANI) and sulfonated polystyrene (SPS) have been built by computer modeling. It has been shown that complexes where one molecule of SPS interacts with one PANI molecule are less stable than complex between one SPS and two PANI molecules. It has also been shown that latter complexes provide better conditions for PANI doping. Optical microscopy shows that the SPS-PANI complexes synthesized by royal palm tree peroxidase as a catalyst are in dispersed form. A size of these particles reaches up to 1.5-2 mum. UV-Vis absorption, FT-IR, EPR and cyclic voltammetry demonstrate that SPS and PANI form the electroactive complex, similar to PANI doped traditionally using low molecular weight sulfonic acids. Effect pH and salt concentration on conformational variability of the complex is evaluated by UV-Vis spectroscopy and EPR. The results obtained confirm that doping of PANI in the complex is observed due to ionic interaction of molecules of PANI and SPS. (C) 2003 Elsevier B.V. All rights reserved.