Parvez, Md. Shohan and Rahman, Md Mustafizur and Samykano, Mahendran and Maleque, M. A. (2025) Interfacial mechanism of sulfonic acid-doped polyaniline/ cotton fabric for maximized electrical properties and tailored surface functionality. Surfaces and Interfaces. pp. 1-26. ISSN 2468-0230. (In Press / Online First) (In Press / Online First)
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2025_Elsevier_Interfacial Mechanism of Sulfonic Acid-Doped Polyaniline- Cotton Fabric for Maximized Electrical Properties and Tailored Surface Functionality.pdf - Accepted Version Restricted to Repository staff only Download (2MB) | Request a copy |
Abstract
Wearable electronics are being revolutionized by conductive polymers like polyaniline (PANI) due to their excellent optical and electrical properties. However, its processability, solvent selection, and establishment of stable synthesis protocols have hindered widespread applications. This study aims to investigate PANI polymerization on cotton fabrics using p-toluene sulfonic acid (pTSA) as a dopant, aniline as a monomer, and ammonium persulfate (APS) as an oxidant. This research elucidates the interfacial mechanism and formulates a relationship among synthesis parameters governing electrical properties for high-performance e-textile applications. The significance lies in developing a robust strategy to conformally coat flexible cotton with highly conductive PANI for next-generation wearable devices. A Box-Behnken response surface methodology systematically optimized critical parameters - aniline monomer, oxidant, and pTSA dopant concentrations. Comprehensive characterizations were performed, including FTIR, FESEM, EDX, XRD, UV-Vis, and measurement of sheet resistance. The quadratic model fitted the data excellently (R2 = 0.9899, F = 75.95, p < 0.0001), validating the optimization approach. The optimized conditions (0.3M aniline, 0.38M APS, 0.6M pTSA) facilitated a uniform, conformal PANI coating with the desirable emeraldine salt oxidation state, minimizing the sheet resistance to 2.60 kΩ/sq. This 80% reduction compared to non-optimized syntheses dramatically enhanced charge transport within the conductive fabrics. In conclusion, this rational design strategy successfully tailored the sulfonic acid-PANI synthesis to maximize the electrical performance of cotton-based e-textiles. The optimized composites are promising for flexible energy storage, sensors, electromagnetic shielding, electro-thermal devices, and other wearable applications. Further work explores innovative PANI nanostructures and industrial scale-up feasibility.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Polyaniline; pTSA; cotton fabric; sheet resistance; Aniline; APS |
| Subjects: | H Social Sciences > HD Industries. Land use. Labor T Technology > TJ Mechanical engineering and machinery |
| Faculty/Division: | Faculty of Industrial Sciences And Technology Institute of Postgraduate Studies Centre for Research in Advanced Fluid & Processes (Fluid Centre) |
| Depositing User: | Miss Amelia Binti Hasan |
| Date Deposited: | 16 Apr 2025 06:35 |
| Last Modified: | 16 Apr 2025 06:35 |
| URI: | http://umpir.ump.edu.my/id/eprint/44318 |
| Download Statistic: | View Download Statistics |
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