| Synthesis and Characterization of Conducting Self-Assembled Polyaniline Nanotubes/Zeolite Nanocomposite. | |
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MedLine Citation:
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PMID: 19170627 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Self-assembled conducting, paramagnetic polyaniline nanotubes have been synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in aqueous medium in the presence of zeolite HZSM-5, without added acid. The influence of initial zeolite/aniline weight ratio on the conductivity, molecular and supramolecular structure, paramagnetic characteristics, thermal stability, and specific surface area of polyaniline/zeolite composites was studied. The conducting ( approximately 10(-2) S cm(-1)), semiconducting (3 x 10(-5) S cm(-1)), and nonconducting (5 x 10(-9) S cm(-1)) composites are produced using the zeolite/aniline weight ratios 1, 5, and 10, respectively. The coexistence of polyaniline nanotubes, which have a typical outer diameter of 70-170 nm and an inner diameter of 5-50 nm, accompanied by nanorods with a diameter of 60-100 nm and polyaniline/zeolite mesoporous aggregates, distinct from the morphology of microporous zeolite HZSM-5, was proved in the conducting nanocomposite by scanning and transmission electron microscopies. FTIR spectroscopy confirmed the presence of polyaniline in the form of conducting emeraldine salt and suggested significant interaction of polyaniline with zeolite. The evolution of molecular and supramolecular structure of polyaniline in the presence of zeolite was discussed. |
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Authors:
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Gordana Ćirić-Marjanović; Vera Dondur; Maja Milojević; Miloš Mojović; Slavko Mentus; Aleksandra Radulović; Zorica Vuković; Jaroslav Stejskal |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2009-1-26 |
Journal Detail:
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Title: Langmuir : the ACS journal of surfaces and colloids Volume: - ISSN: 1520-5827 ISO Abbreviation: Langmuir Publication Date: 2009 Jan |
Date Detail:
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Created Date: 2009-1-27 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9882736 Medline TA: Langmuir Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Faculty of Physical Chemistry, University of Belgrade, and Institute of General and Physical Chemistry, Studentski Trg 12-16, 11158 Belgrade, Serbia, Department of Catalysis and Chemical Engineering, ICTM, Njegoseva 12, Belgrade, Serbia, and Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague 6, Czech Republic. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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