Synthesis and characterization of electrical conducting chitosan-graft-polyaniline
A mucopolysaccharide, chitosan was grafted with polyaniline through oxidative-radical copolymerization using ammonium persulfate in acidic medium. The grafting conditions were extensively studied by varying grafting parameters. All the findings have been discussed and proposed a plausible mechanism...
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| Format: | Article |
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| Language: | English |
| Published: |
Budapest University of Technology and Economics
2007-05-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0000201&mi=cd |
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| collection | DOAJ |
| description | A mucopolysaccharide, chitosan was grafted with polyaniline through oxidative-radical copolymerization using ammonium persulfate in acidic medium. The grafting conditions were extensively studied by varying grafting parameters. All the findings have been discussed and proposed a plausible mechanism for the graft copolymerization. The representative chitosan-graft-polyaniline (Ch-g-PANI) was characterized using UV-vis, FTIR, TGA, X-ray diffraction and Scanning electron microscopy taking chitosan as reference. Ch-g-PANI exhibited electrical conductivity, which increases with the extent of grafting onto chitosan backbone. Its electrical conductivity is further influenced by pH and showed pH switching electrical conduction behavior when exposed to NN3/HCl vapors. The application of conducting biomaterial such as Ch-g-PANI in the electronic devices especially for the fabrication of sensor devices would be attractive not only in terms of product cost and environmental safety but also from a materials science point of view. |
| format | Article |
| id | doaj-art-694b6886d2374bbfb122b80c20c97c3f |
| institution | Matheson Library |
| issn | 1788-618X |
| language | English |
| publishDate | 2007-05-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-694b6886d2374bbfb122b80c20c97c3f2025-08-02T10:06:56ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2007-05-011530831710.3144/expresspolymlett.2007.44Synthesis and characterization of electrical conducting chitosan-graft-polyanilineA mucopolysaccharide, chitosan was grafted with polyaniline through oxidative-radical copolymerization using ammonium persulfate in acidic medium. The grafting conditions were extensively studied by varying grafting parameters. All the findings have been discussed and proposed a plausible mechanism for the graft copolymerization. The representative chitosan-graft-polyaniline (Ch-g-PANI) was characterized using UV-vis, FTIR, TGA, X-ray diffraction and Scanning electron microscopy taking chitosan as reference. Ch-g-PANI exhibited electrical conductivity, which increases with the extent of grafting onto chitosan backbone. Its electrical conductivity is further influenced by pH and showed pH switching electrical conduction behavior when exposed to NN3/HCl vapors. The application of conducting biomaterial such as Ch-g-PANI in the electronic devices especially for the fabrication of sensor devices would be attractive not only in terms of product cost and environmental safety but also from a materials science point of view.http://www.expresspolymlett.com/letolt.php?file=EPL-0000201&mi=cdBiopolymers, biocompositesMaterial testingThermal propertiesIndustrial applications |
| spellingShingle | Synthesis and characterization of electrical conducting chitosan-graft-polyaniline eXPRESS Polymer Letters Biopolymers, biocomposites Material testing Thermal properties Industrial applications |
| title | Synthesis and characterization of electrical conducting chitosan-graft-polyaniline |
| title_full | Synthesis and characterization of electrical conducting chitosan-graft-polyaniline |
| title_fullStr | Synthesis and characterization of electrical conducting chitosan-graft-polyaniline |
| title_full_unstemmed | Synthesis and characterization of electrical conducting chitosan-graft-polyaniline |
| title_short | Synthesis and characterization of electrical conducting chitosan-graft-polyaniline |
| title_sort | synthesis and characterization of electrical conducting chitosan graft polyaniline |
| topic | Biopolymers, biocomposites Material testing Thermal properties Industrial applications |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0000201&mi=cd |