Citation

Razak, S. I. A., Rahman, W. A. W. A., Yahya, M. Y. (2013). Para-hydroxybenzene Sulfonic Acid as a Suitable Dopant for the Preparation of Conductive Epoxy/Polyaniline Nanowires Nanocomposites Blend: Electrical vs Mechanical Properties. Polymer-Plastics Technology and Engineering, 52, 1266-1270.

Abstract

This article reports improved mechanical properties of epoxy/polyaniline nanowires nanocomposite (EP/PANI) by using para-hydroxybenzene sulfonic acid as the dopant. The PANI nanowires show no chain dedoping in the EP. Mechanical properties of the nanocomposites were maintained while achieving its conductive state and revealed pull-out of bundles rather than individual nanowire.

Taylor & Francis Online

Citation

Razak, S. I. A., Rahman, W. A. W. A., Hashim, S., Yahya, M. Y. (2013). Enhanced Interfacial Interaction and Electronic Properties of Novel Conducting Kenaf/Polyaniline Biofibers. Polymer-Plastics Technology and Engineering, 52, 51-57.

Abstract

Conducting kenaf/polyaniline (KF/PANI) biofibers were successfully prepared via in situ oxidative polymerization. It was demonstrated, for the first time, the possibility of imparting new electronic properties on KF by coating with acid-doped PANI. The morphological analysis revealed three different PANI morphologies on the KF, depending on the type of acid doping. Enhanced interaction was achieved between the fiber-PANI surfaces, mainly from the π − π interactions. The newly developed conducting biofibers achieved enhancement in DC conductivity up to fivefold compared to the unmodified KF. Mechanical test on the conducting biofibers revealed no significant loss in the tensile properties.

Taylor & Francis Online

Citation:

Razak, S. I. A., Sharif, N. F. A., Muhamad, I. I. (2014). Polyaniline Coated Halloysite Nanotubes: Effect of Para-Hydroxybenzene Sulfonic Acid Doping. Composite Interfaces, 21, 715-722. 

Abstract

This paper reports new method of preparing electrically conducting polyaniline-coated halloysite nanotube (HNT-PANI) by using para-hydroxybenzene sulfonic acid as the doping agent. The achieved DC electrical conductivity of the HNT-PANI was 9.83 × 10^-2 Scm^-1. The HNT revealed no damages by the acid doping while achieving its conductive state. The HNT-PANI exhibits polaronic transitions, existence of favorable IR peaks and Raman scattering, increased thermal stability, and desirable morphological characteristic as a result of the in situ coating. Such electronically modified tube-like clay could be useful in many applications such as conductive fillers in nanocomposites and drug delivery with the advantage of being cost effective. © 2014 © 2014 Taylor & Francis.

Taylor & Francis Online

Citation

Razak, S. I. A., Rahman, W. A. W. A., Hashim, S., Yahya, M. Y. (2013). Polyaniline and their Conductive Polymer Blend: A Short Review. Malaysian Journal of Fundamental and Applied Sciences, 9, 74-80.

Abstract

This short review discusses recent research regarding conductive polymeric blends containing polyaniline (PANI). Conducting PANI was reviewed in view of their properties to be used as a conducting component in several polymer matrix composites. Conductive PANI blends shows promise since the discovery of conducting polymers itself. These composite materials have introduced practical applications in various fields, including electromagnetic shielding and microwave absorption, static electricity dissipation, conducting membrane materials, conductive paint coatings and sensor materials. Highlights were made on PANI containing composites of polyethylene, polyamides, rubbers and elastomers, including other conventional thermoplastics and thermosets. Their electrical properties (percolation threshold and resistivity), blends preparation, drawbacks and potential usage were discussed in detail.

Malaysian Journal of Fundamental and Applied Sciences