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Please use this identifier to cite or link to this item: https://ptsldigital.ukm.my/jspui/handle/123456789/578215
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dc.contributor.authorGhalib H (UKM)
dc.contributor.authorAbdullah I (UKM)
dc.contributor.authorDaik R (UKM)
dc.date.accessioned2023-11-06T02:59:15Z-
dc.date.available2023-11-06T02:59:15Z-
dc.date.issued2013-07
dc.identifier.issn0128-7680
dc.identifier.otherukmvital:115744
dc.identifier.urihttps://ptsldigital.ukm.my/jspui/handle/123456789/578215-
dc.descriptionConducting polypyrrole (PPy) nanoparticles were synthesized by chemical oxidative polymerization of pyrrole in aqueous solution containing ferric sulfate (Fe2(SO4)3), anionic surfactants (sodium dodecylbenzene-sulfonate (NaDBS) or sodium dodecyl sulfate (SDS)), 1-pentanol as the oxidant, dopant and co-emulsifier, respectively. The polymerization was carried out at 0 ºC and 25 ºC. Fourier transform infrared spectroscopy (FTIR) and elemental analysis indicated that anionic surfactants were successfully incorporated into the PPy backbone. Incorporation of anionic surfactants caused enhanced electrical conductivity, increased yield, decreased the size of particles as well as improved the thermal stability of the resultant PPy. The presence of anionic surfactant seems to inhibit undesirable side reactions so as to improve the regularity of the PPy backbone. Globular PPy particles were obtained with diameter ranged from 40 to 118 nm as revealed by field emission scanning electron microscopy (FE-SEM) and conductivity of 7.89×10-4 –2.35×10-2 S cm-1, as measured using impedance analyzer. It was found that polymerization at low temperature (0 ºC) produced PPy particles with smaller size and higher conductivity. The sodium dodecyl sulfate-doped PPy (SDS-doped PPy) exhibited higher conductivity than that of the sodium dodecylbenzenesulfonate-doped PPy (NaDBS-doped PPy), due to the bulkiness of NaDBS as compared to SDS.
dc.language.isoen
dc.publisherUniversiti Putra Malaysia Press
dc.relation.haspartPertanika Journals
dc.relation.urihttp://www.pertanika.upm.edu.my/view_archives.php?journal=JST-21-2-7
dc.rightsUKM
dc.subjectPolymer nanoparticle
dc.subjectConducting polymer
dc.subjectConjugated polymer
dc.subjectEmulsion polymerization
dc.titleElectrical conductivity of anionic surfactant-doped polypyrrole nanoparticles prepared via emulsion polymerization
dc.typeJournal Article
dc.format.volume21
dc.format.pages459-472
dc.format.issue2
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