DC electrical conductivity retention and electrical compensation of polyaniline by TiO2 at higher loading percentages in polyaniline@TiO2 nanocomposites

Ansari, Sajid Ali; Khan, Mohammad Mansoob

doi:10.1007/s13391-015-5073-2

Cited by 12 publications

(2 citation statements)

References 17 publications

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“…This copolymer also shows comparable level of impact, heat, and chemical resistance with PMMA. Literature survey reveals that the electrical properties of nanocomposites using various polymeric materials such as poly(methyl methacrylate) (PMMA)‐poly(ethylene oxide) (PEO) , polyaniline (PANI) , poly(methyl methacrylate) (PMMA) , and nanocomposites have been widely studied. However, the studies on poly(styrene‐co‐acrylonitrile) (PSAN) have been rarely reported.…”

Section: Introductionmentioning

confidence: 99%

Effect of TiO₂ nano‐filler on the electrical conductivity and free volume parameters of PSAN/TiO₂ nanocomposites

Ningaraju

Ravikumar

2016

Polymer Composites

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To explore the effect of filler on the electrical conductivity of polymer nanocomposites, polystyrene coacrylonitrile and TiO 2 (PSAN/TiO 2 ) nanocomposites of different TiO 2 wt% have been prepared. The microstructural characterization has been performed by positron annihilation lifetime spectroscopy (PALS). Positron lifetime parameters viz. o-Ps lifetime (s 3 ) and free volume size (V f ) decreases up to 0.6 wt% suggests the filling of the cavities by Ti 31 and O 2 ions as well as complex formation. The increased free volume size (V f ) after 0.6 wt% of TiO 2 was attributed to the o-Ps annihilation at the interface of PSAN and TiO 2 nanoclusters. The variation of electrical conductivity at lower and higher concentration of TiO 2 is attributed to the blocking effect and space charge effect, respectively. The electrical conductivity decreases along with the free volume sizes at lower concentration of TiO 2 due to the hindrance of the ions mobility. The increased conductivity with the increased free volume sizes indicates the formation of more void space at the interface due to the formation of TiO 2 nanoclusters. The surface morphology of the nanocomposites studied by scanning electron microscopy (SEM) shows uniform dispersion at the lower wt% of TiO 2 and increased size of nanocluster formation at the higher concentration of TiO 2 nanoparticles in PSAN matrix. The crystallinity evaluated by X-ray diffraction (XRD) results also indicates the formation of TiO 2 nanoclusters between 0.6 and 1.0 wt% of TiO 2 . Fourier transform infrared spectroscopy (FTIR) suggests the improved chemical and physical interaction between the functional groups of TiO 2 and polymer side chain. POLYM. COMPOS., 00:000-000,

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Section: Introductionmentioning

confidence: 99%

Effect of TiO₂ nano‐filler on the electrical conductivity and free volume parameters of PSAN/TiO₂ nanocomposites

Ningaraju

Ravikumar

2016

Polymer Composites

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“…The nano era has been, a tremendous increase in the number of reports discussing methods of fabricating and characterizing a variety of nanomaterials and nanostructures [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Among these, a new generation of gas sensors based on graphene materials such as graphene oxide, and reduced graphene oxide (RGO) have drawn attention, due to their room temperature operation, facile synthesis, and the ease with which their electrical properties can be tailored [21].…”

Section: Introductionmentioning

confidence: 99%

Effect of E-Beams Irradiation Dose on the Sensing Properties of Pt-Functionalized Reduced Graphene Oxides Following Annealing of the 6 nm-Thick Pt Layer

Kwon¹,

Mirzaei

Na³

et al. 2017

Korean J. Met. Mater.

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Pt-functionalized RGO samples were prepared and subsequently irradiated with 2-MeV electron beams (e-beams). The effect of e-beam dose on the structural, electrical, and gas sensing properties of the samples was investigated. E-beam irradiation was found to induce significant microstructural changes in the Pt-functionalized RGO. Measurements of NO2 sensing at room temperature showed that the dose of 100 kGy led to better NO2 sensing properties compared to those of unirradiated sensors. On the other hand, the dose of 500 kGy appeared to be excessive, leading to extensive damage of the RGO structure and a significant reduction in the response to NO2 gas. E-beam irradiation can be beneficial for improving the gas sensing of Pt-functionalized RGO, but its dose needs to be optimized to obtain the best sensing properties. † (

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Thermoelectric Properties and Thermal Stability of Conducting Polymer Nanocomposites: A Review

Romero

Mombrú

Faccio

et al. 2019

Advanced Thermoelectric Materials

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DC electrical conductivity retention and electrical compensation of polyaniline by TiO2 at higher loading percentages in polyaniline@TiO2 nanocomposites

Cited by 12 publications

References 17 publications

Effect of TiO₂ nano‐filler on the electrical conductivity and free volume parameters of PSAN/TiO₂ nanocomposites

Effect of TiO₂ nano‐filler on the electrical conductivity and free volume parameters of PSAN/TiO₂ nanocomposites

Effect of E-Beams Irradiation Dose on the Sensing Properties of Pt-Functionalized Reduced Graphene Oxides Following Annealing of the 6 nm-Thick Pt Layer

Thermoelectric Properties and Thermal Stability of Conducting Polymer Nanocomposites: A Review

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DC electrical conductivity retention and electrical compensation of polyaniline by TiO2 at higher loading percentages in polyaniline@TiO2 nanocomposites

Cited by 12 publications

References 17 publications

Effect of TiO2 nano‐filler on the electrical conductivity and free volume parameters of PSAN/TiO2 nanocomposites

Effect of TiO2 nano‐filler on the electrical conductivity and free volume parameters of PSAN/TiO2 nanocomposites

Effect of E-Beams Irradiation Dose on the Sensing Properties of Pt-Functionalized Reduced Graphene Oxides Following Annealing of the 6 nm-Thick Pt Layer

Thermoelectric Properties and Thermal Stability of Conducting Polymer Nanocomposites: A Review

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Product

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Effect of TiO₂ nano‐filler on the electrical conductivity and free volume parameters of PSAN/TiO₂ nanocomposites

Effect of TiO₂ nano‐filler on the electrical conductivity and free volume parameters of PSAN/TiO₂ nanocomposites