Investigation on the Electrical Properties of Polymer metal Nanocomposites for Physiological Sensing Applications

Vijayakumari, G.; Selvakumar, N.; Jeyasubramanian, K.; Mala, R.

doi:10.1016/j.phpro.2013.10.012

Cited by 46 publications

(17 citation statements)

References 2 publications

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“…The PMMA-PVA blend spectra in Figure 2(b) presented several peaks such as, 1646, 1604, 1361, and between 1260 and 1000 cm À1 that were attributed to (CH 2 ), (C-H) stretching, (O-H) bending, and (C-O) (ester bond) stretching vibration. These functional peaks were related to functional groups peaks of both PMMA, 42 and PVA 43 net. The contribution of the GO has presented a new functional peak in the nanocomposites, as displayed in Figure 2(c) to (e).…”

Section: Resultsmentioning

confidence: 87%

New fabricated PMMA-PVA/graphene oxide nanocomposites: Structure, optical properties and application

Kadhim

Al‐Bermany

2021

Journal of Composite Materials

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Graphene oxide nanosheets (GO) bring more interest in the tunable bandgap and enhanced the optical properties of nanocomposites. The developed method successfully mixed the PMMA- dissolved in dimethylformamide (DMF) with PVA dissolved in distilled water (DW) and DMF. New (PMMA-DMF)-(PVA-DW-DMF)/GO nanocomposite was successfully fabricated with various loading ratios of GO nanosheets for the first time. Several factors were applied to get fine desperation and homogeneous using the acoustic-solution casting method. Optical Microscope (OM), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and UV–visible spectrophotometer were applied to investigate the structure and optical properties of the PMMA-PVA-GO nanocomposite. The OM images confirmed the fine homogenous matrix and GO distribution in the nanocomposites. FTIR spectra exhibited the most functional group of polymers and GO in the nanocomposites and strong interfacial interaction between the GO and matrix as confirmed by the shifting in the XRD patterns of the PMMA. The optical properties results of the PMMA-PVA/GO nanocomposites revealed an improvement up to 400% of the absorbance, 337% of the absorption coefficient, 51% of the refractive index, 210% of the real and 125% of the imaginary dielectric constants in terms to increase the GO concentrations, whereas the reduction in the transmittance and energy bandgap results of allowed and forbidden indirect transition were exhibited up to 9 and 16.4%, respectively. These results could grow for better and wide applications such as radiation shielding, specific optoelectronic applications, and filters ultraviolet also could use in landfilling the chemical, nuclear, and radioactive waste.

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Section: Resultsmentioning

confidence: 87%

New fabricated PMMA-PVA/graphene oxide nanocomposites: Structure, optical properties and application

Kadhim

Al‐Bermany

2021

Journal of Composite Materials

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“…The band at 1193 cm −1 was due to –OCH 3 stretching. The absorption bands at 977 and 716 cm −1 were assigned to the CH 2 wagging and rocking modes of pPMMA, respectively [37,38,39,40].…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Properties of Plasma-Polymerized Methyl Methacrylate via the Atmospheric Pressure Plasma Polymerization Technique

et al. 2019

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Pinhole free layers are needed in order to prevent oxygen and water from damaging flexible electrical and bio-devices. Although polymerized methyl methacrylate (polymethyl methacrylate, PMMA) for the pinhole free layer has been studied extensively in the past, little work has been done on synthesizing films of this material using atmospheric pressure plasma-assisted electro-polymerization. Herein, we report the synthesis and properties of plasma-PMMA (pPMMA) synthesized using the atmospheric pressure plasma-assisted electro-polymerization technique at room temperature. According to the Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and time of flight-secondary ion mass spectrometry (ToF-SIMS) results, the characteristic peaks from the pPMMA polymer chain were shown to have been detected. The results indicate that the percentage of hydrophobic groups (C–C and C–H) is greater than that of hydrophilic groups (C–O and O–C=O). The field emission-scanning electron microscope (FE-SEM) and thickness measurement results show that the surface morphology is quite homogenous and amorphous in nature, and the newly proposed pPMMA film at a thickness of 1.5 µm has high transmittance (about 93%) characteristics. In addition, the results of water contact angle tests show that pPMMA thin films can improve the hydrophobicity.

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“…The sharp and very intense IR peak at around 1730 cm -1 is ascribed to ester carbonyl group stretching vibration. [55] The IR band spanning 1250-1000 cm -1 is attributed to the C-O (ester bond) stretching vibration. [33] The broad IR band in the range 950-650 cm -1 is mainly because of C-H bending whereas the peak in the range 3100-2900 cm -1 is due to the presence of CH stretching vibration of PMMA.…”

Section: Vibration Features Of Cspbx3 Perovskite Ncs and Correspondinmentioning

confidence: 99%

Tunable CsPb(Br/Cl)₃perovskite nanocrystals and further advancement in designing light emitting fiber membranes

et al. 2021

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Investigation on the Electrical Properties of Polymer metal Nanocomposites for Physiological Sensing Applications

Cited by 46 publications

References 2 publications

New fabricated PMMA-PVA/graphene oxide nanocomposites: Structure, optical properties and application

New fabricated PMMA-PVA/graphene oxide nanocomposites: Structure, optical properties and application

Synthesis and Properties of Plasma-Polymerized Methyl Methacrylate via the Atmospheric Pressure Plasma Polymerization Technique

Tunable CsPb(Br/Cl)₃perovskite nanocrystals and further advancement in designing light emitting fiber membranes

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Investigation on the Electrical Properties of Polymer metal Nanocomposites for Physiological Sensing Applications

Cited by 46 publications

References 2 publications

New fabricated PMMA-PVA/graphene oxide nanocomposites: Structure, optical properties and application

New fabricated PMMA-PVA/graphene oxide nanocomposites: Structure, optical properties and application

Synthesis and Properties of Plasma-Polymerized Methyl Methacrylate via the Atmospheric Pressure Plasma Polymerization Technique

Tunable CsPb(Br/Cl)3perovskite nanocrystals and further advancement in designing light emitting fiber membranes

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Tunable CsPb(Br/Cl)₃perovskite nanocrystals and further advancement in designing light emitting fiber membranes