Abstract
In order to rectify and overcome environmental perturbations and crises, researchers have recently been developing environmentally friendly materials in various sectors. The present work aims at the synthesis, characterization and properties of conductive polymer blend nanocomposites based on polyindole (PIN) and carboxymethyl chitosan (CMCS) with various concentrations of alumina (Al2O3) nanoparticles. The FTIR measurement reveals the distinct absorption peaks of Al2O3 in the PIN/CMCS blend. The minimum optical bandgap energy was observed for 10 wt% Al2O3 nanoparticle loaded blend nanocomposite. The presence of Al2O3 nanoparticles in the blend was confirmed by the change in intensity and transformation in XRD of the pure blend. SEM unveiled the improved dispersion of Al2O3 nanofillers within the polymer blend matrix. TEM structural evaluations of the compounds revealed the uniform dispersion of alumina at lower concentrations, transitioning into an increased degree of particle clustering at higher loadings. Thermogravimetric studies show that the addition of Al2O3 improved the thermal stability of the conductive polymer blend nanocomposite. The AC electric conductivity was improved considerably with increasing temperature and the inclusion of Al2O3. The mobilization energy of AC conductivity reduces with a rise in temperature. The mechanical strength and surface hardness of the PIN/CMCS/Al2O3 composites were greatly boosted by the bonding of Al2O3 with the conductive blend. This conductive polymer blend nanocomposite material is excellent for electronic components and bendable dielectric circuits due to improvements in optical qualities, thermal stability and electrical performance.
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M.S.B contributed to experimental design, carrying out measurements and writing, and manuscript composition; S contributed formal analysis and visualization. AJK contributed to formal analysis and editing; B.K.B contributed to formal analysis, visualization, conceptualization and resources; MTR contributed to data curation, investigation, methodology, visualization and supervision.
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Baskar, M.S., Sooryajayan, Kalladi, A.J. et al. Development of high strength, thermal resistant and electrical properties of polyindole/carboxymethyl chitosan/alumina blend nanocomposites for flexible energy storage applications. emergent mater. 7, 887–898 (2024). https://doi.org/10.1007/s42247-024-00629-w
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DOI: https://doi.org/10.1007/s42247-024-00629-w