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Molecules 2018, 23(10), 2470; https://doi.org/10.3390/molecules23102470

A Surfactant Directed Microcrystalline Cellulose/Polyaniline Composite with Enhanced Electrochemical Properties

1
Young Researchers and Elite Club, Islamshahr Branch, Islamic Azad University, Islamshahr 3314767653, Iran
2
Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, Serdang 43400, Malaysia
3
Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia 5756151818, Iran
*
Author to whom correspondence should be addressed.
Academic Editor: Janet L. Scott
Received: 4 July 2018 / Revised: 9 August 2018 / Accepted: 24 August 2018 / Published: 26 September 2018
(This article belongs to the Special Issue Cellulose Chemical Modifications—Towards Sustainable Materials)
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Abstract

In this study a cationic surfactant, cetyltrimethylammonium bromide (CTAB), was used as a soft template for in situ chemical polymerization of aniline on the surface of microcrystalline cellulose (MCC). The morphology of the wire-like and porous nanostructure of the resulting composite was highly dependent on the MCC and CTAB concentrations. The effect of the MCC and CTAB concentrations on the electrochemical and morphological properties of the polyaniline (PAni) nanocomposite was studied. Cyclic voltammograms of modified PAni/MCC/CTAB electrode displayed a high current response and the effect of scan rate on the current response confirmed a diffusion controlled process on the surface of the electrode that makes it suitable for sensor applications. The overlapping characteristic peaks of pure PAni and MCC caused peak broadening at 3263 cm−1 in the IR spectra of PAni/MCC/CTAB nanocomposite that revealed the interaction between NH of PAni and OH group of MCC via electrostatic interactions. The addition of MCC to PAni through chemical polymerization decreased the thermal stability of composite compared to pure PAni. Lower crystallinity was observed in the XRD diffractogram, with 2 theta values of 22.8, 16.5, and 34.6 for PAni/MCC, confirming the formation of PAni on the MCC surface. View Full-Text
Keywords: conducting polymers; microcrystalline cellulose; chemical polymerization; modified electrode conducting polymers; microcrystalline cellulose; chemical polymerization; modified electrode
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Abdi, M.M.; Md Tahir, P.; Liyana, R.; Javahershenas, R. A Surfactant Directed Microcrystalline Cellulose/Polyaniline Composite with Enhanced Electrochemical Properties. Molecules 2018, 23, 2470.

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