Studies on optical properties, thermal stability and electrical conductivity of copper alumina nanoparticles-reinforced Poly(pyrrole-co-indole) for optoelectronic devices

Sankar, S.; Ramesan, M. T.

doi:10.1007/s10854-022-08965-5

Cited by 13 publications

(3 citation statements)

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“…Thus, the processability of PIN is an important factor to be addressed for better applicability in various fields. In the literature, PIN has been modified in a variety of ways, including the addition of substitute groups in the main chain, the synthesis of soluble precursors, the preparation of composites through chemical oxidation methods and the blending of PIN with one or more flexible and stable polymers 6–8 . Recent reports have shown that the fabrication of PIN composites by chemical oxidative polymerization methods has drawn much attention, due to its easy and effective nature 9 .…”

Section: Introductionmentioning

confidence: 99%

“…In the literature, PIN has been modified in a variety of ways, including the addition of substitute groups in the main chain, the synthesis of soluble precursors, the preparation of composites through chemical oxidation methods and the blending of PIN with one or more flexible and stable polymers. [6][7][8] Recent reports have shown that the fabrication of PIN composites by chemical oxidative polymerization methods has drawn much attention, due to its easy and effective nature. 9 This chemical oxidative method can also be used to increase the length of the polymer chain to the desired length.…”

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confidence: 99%

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Effect of titanium dioxide on the structural, thermal, and electrical properties of chlorinated natural rubber/poly (indole) blend nanocomposites for flexible nanoelectronic devices

Parvathi

Ramesan

2023

J of Applied Polymer Sci

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The synthesis of highly flexible conductive rubber blend nanocomposites using a conductive polymer with metal oxide is a new and promising approach. In this work, the effect of titanium dioxide (TiO 2 ) on the performance of chlorinated natural rubber/polyindole (Cl-NR/PIN) blend nanocomposites was systematically studied. Fourier-transform infrared spectra revealed the successful incorporation of nanoparticles in the blend system. UV analysis assessed the increased absorption spectra of the nanocomposite compared to the pure blend. The X-ray diffraction confirms the presence of TiO 2 nanostructure in the blend. The high resolution transmission electron microscope results exhibited the uniform dispersion of TiO 2 in the blend. Differential scanning calorimetry and thermogravimetric analysis show the increased glass transition temperature and thermal stability of the blend nanocomposite with an increase in TiO 2 concentration. The linear low-frequency AC conductivity demonstrated the occurrence of electrode polarization and the exponential increase in AC conductivity after a threshold frequency illustrated the semiconducting behavior of the composites. The maximum dielectric constant and AC conductivity were measured for the composite with 5 wt% filler loading, as the threshold level for the maximum interfacial contact. The hopping conduction, activation energy, improved conductivity and dielectric properties suggest that these blend nanocomposite films are promising candidates for the development of flexible energy storage devices.chlorinated natural rubber/polyindole blend, dielectric parameters, nanocomposites, temperature dependent conductivity, thermal properties, titanium dioxide | INTRODUCTIONConducting polymers are of great interest due to their diverse applications such as rechargeable batteries, modified electrodes, biosensors, electrochromic displays, and primer layers that prevent corrosion. [1][2][3] The nitrogencontaining heteroaromatic polymer has several intriguing properties, but the main barrier is its poor mechanical stability, brittleness and low processability. Polyindole (PIN) films are often particularly rigid, brittle, insoluble,

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Effect of titanium dioxide on the structural, thermal, and electrical properties of chlorinated natural rubber/poly (indole) blend nanocomposites for flexible nanoelectronic devices

Parvathi

Ramesan

2023

J of Applied Polymer Sci

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“…PIN is a conducting polymer with delocalised conjugated structures with excellent optical and electrical properties, has various applications in the fields of sensors, electromagnetic interference (EMI) shielding, photocatalysis and supercapacitors [11][12][13]. PIN has improved thermal stability and slow hydrolytic degradation compared to polyaniline and other conducting polymers [14].…”

Section: Introductionmentioning

confidence: 99%

Improvement in structural, thermal, charge transport and mechanical properties of poly (methyl methacrylate)/polyindole composites for optoelectronic devices

et al. 2023

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This study encompasses the synthesis, characterization, optical properties, thermal, mechanical, and electrical characteristics of a series of in situ polymerized poly (methyl methacrylate) (PMMA) with different contents of polyindole (PIN) composites. The formation of composites was characterized by FTIR, UV-visible, XRD, FE-SEM, AFM, DSC and TGA. Tensile testing techniques was used to determine mechanical properties such as tensile strength, modulus, hardness and impact strength of PMMA/PIN. Impedance spectroscopy was used to study the electrical properties of the prepared composites. The interaction between the NH moiety of indole and ester groups of PMMA was established through FTIR. The optical bandgap energy determined from UV spectroscopy shows a declining trend, whereas the refractive index grows significantly with the loading of indole up to 5 wt%. The decrease in broadness and intensity of the XRD peak confirmed the presence of an indole component in the PMMA matrix. The holes in the surface morphology of PMMA was changed into uniformly dispersed particles, confirming the dispersion of PIN in the PMMA matrix. The surface roughness obtained from AFM increases with the addition of PIN to PMMA. DSC measurements show that the glass transition temperature of the polymer increases with the inclusion of the indole moiety. TGA indicates that the addition of PIN has a positive effect on the thermal stability of PMMA/PIN composites. The results of mechanical testing showed an increase in Youngs modulus, tensile strength, and impact strength with the addition of PIN. The AC impedance results show an increase in the dielectric constant and conductivity of PMMA with the PIN addition. The PMMA/PIN composites with high tensile strength, conductivity and dielectric constant can be used in the fabrication of optoelectronic devices and EMI shielding.

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Integrating the optical, conductivity, dielectric and thermal properties of silicon dioxide/polyindole nanocomposites for optoelectronic devices

Sulu,

Kalladi,

Abdulla

et al. 2024

J Mater Sci: Mater Electron

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Studies on optical properties, thermal stability and electrical conductivity of copper alumina nanoparticles-reinforced Poly(pyrrole-co-indole) for optoelectronic devices

Cited by 13 publications

References 50 publications

Effect of titanium dioxide on the structural, thermal, and electrical properties of chlorinated natural rubber/poly (indole) blend nanocomposites for flexible nanoelectronic devices

Effect of titanium dioxide on the structural, thermal, and electrical properties of chlorinated natural rubber/poly (indole) blend nanocomposites for flexible nanoelectronic devices

Improvement in structural, thermal, charge transport and mechanical properties of poly (methyl methacrylate)/polyindole composites for optoelectronic devices

Integrating the optical, conductivity, dielectric and thermal properties of silicon dioxide/polyindole nanocomposites for optoelectronic devices

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