Surfactant-assisted synthesis of polyaniline nanofibres without shaking and stirring: effect of conditions on morphology and conductivity
-
Ali Olad
,
Fahimeh Ilghami
Abstract
Polyaniline (PANI) nanofibres were synthesised by the chemical oxidative polymerisation method using ammonium peroxydisulphate (APS) as an oxidant/initiator. In this work, a surfactant-assisted method without shaking and stirring was used for the synthesis of PANI nanofibres. The effect was investigated of various parameters such as monomer/oxidant ratio, polymerisation temperature, and the presence of surfactant (Triton X-100 as a non-ionic surfactant) on the morphology and electrical conductivity of nanofibres. The morphology of PANI nanofibres was characterised by scanning electron microscopy and transmission electron microscopy. The results demonstrate that the morphology of PANI nanofibres was significantly influenced by the aniline/APS mole ratio, polymerisation temperature and presence of the surfactant during synthesis. The results showed that more regular and consistent nanofibres were obtained using a monomer/oxidant ratio of 4 at ambient temperature of polymerisation. PANI nanofibres with diameters in the range of 10–100 nm and length up to several μm were obtained. PANI nanofibres were also characterised using FTIR and UV-VIS absorption spectroscopy. The electrochemical behaviour of PANI nanofibres was studied by cyclic voltammetry. It was found that the electrical conductivity of PANI nanofibres increased with the increasing monomer/oxidant ratio and decreasing polymerisation temperature, respectively.
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© 2012 Institute of Chemistry, Slovak Academy of Sciences
Articles in the same Issue
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Articles in the same Issue
- Determination of total petroleum hydrocarbons in soil from different locations using infrared spectrophotometry and gas chromatography
- Effect of Ag-doping of nanosized FeMgO system on its structural, surface, spectral, and catalytic properties
- Synthesis of new dendritic antenna-like polypyridine ligands
- Solvothermal synthesis of hollow Eu2O3 microspheres using carbon template-assisted method
- Effect of substrate on phase formation and surface morphology of sol-gel lead-free KNbO3, NaNbO3, and K0.5Na0.5NbO3 thin films
- Surfactant-assisted synthesis of polyaniline nanofibres without shaking and stirring: effect of conditions on morphology and conductivity
- Novel ammonium phosphinates containing peptide moiety: Synthesis, structure, and in vitro antimicrobial activity
- Reduction of aromatic nitro compounds to amines using zinc and aqueous chelating ethers: Mild and efficient method for zinc activation
- Ethylcellulose, polycaprolactone, and eudragit matrices for controlled release of piroxicam from tablets and microspheres
- Spectroscopic investigation of interaction of 6-methoxyflavanone and its β-cyclodextrin inclusion complex with calf thymus DNA
- Photosynthesis-inhibiting effects of 2-benzylsulphanylbenzimidazoles in spinach chloroplasts
- Investigation of structure of milled wood and dioxane lignins of Populus nigra and Cupressus sempervirens using the DFRC method
