Multiple hopping conduction in interpenetrating polymer network composites of poly pyrrole and poly (styrene-co-butyl acrylate)

Bhattacharyya, Souvik; Saha, Shyamal Kumar; Mandal, Tarun K.; Mandal, Broja M.; Chakravorty, D.; Goswami, K.

doi:10.1063/1.1356435

Cited by 11 publications

(4 citation statements)

References 25 publications

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“…Similarly, work on liquid-liquid mixtures can be found in the literature [149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165]. The dielectric spectroscopy technique has been found powerful for investigating polymer-polymer mixtures [166,167,168,169,170,171,172,173,174,175,176]. Recently, dielectric behavior of confined polymers has got attention [177,178,179,90,180].…”

Section: Experimental Studies Of Dielectric Systemsmentioning

confidence: 99%

Dielectric mixtures: electrical properties and modeling

Tuncer

Serdyuk

Gubanski

2002

IEEE Trans. Dielect. Electr. Insul.

270

154

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A review of current state of understanding of dielectric mixture properties and approaches to use numerical calculations for their modeling are presented. It is shown that interfacial polarization can yield different non-Debye dielectric responses depending on the properties of the constituents, their concentrations and geometrical arrangements. Future challenges on the subject are also discussed.

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Section: Experimental Studies Of Dielectric Systemsmentioning

confidence: 99%

Dielectric mixtures: electrical properties and modeling

Tuncer

Serdyuk

Gubanski

2002

IEEE Trans. Dielect. Electr. Insul.

270

154

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“…The electrical conductivity of an insulating polymer can be altered by adding conducting particles like carbon black particles, − carbon fibers, metallic fillers, , or intrinsically conducting polymers. − The conductivity of the composite material can thus be controlled by properly choosing the components, their shape, and their relative concentrations.…”

Section: Introductionmentioning

confidence: 99%

DC and AC Conductivity of Carbon Nanotubes−Polyepoxy Composites

et al. 2003

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The dc and ac conductivities of carbon nanotubes-polyepoxy composites have been investigated from 20 to 110°C in the frequency range 10 -2 -10 6 Hz as a function of the conductive weight fraction p ranging from 0.04 to 2.5 wt %. The frequency dependence of the measured conductivity obeys the universal dynamic response (UDR): a dc plateau followed, above a critical frequency ωc,b yt h eω s power law with exponent s ∼ 0.6-1. The dc conductivity follows a percolation scaling law: σdc ∝ (ppc) t with pc ) 0.3 wt % and t ) 1.4-1.8, according to the temperature. σdc reached 10 -4 S/cm for 2.5 wt % CNTs content and increases with increasing temperature. Considering a biased random walk in three dimensions approach, we may explain the scaling law of ω c with p and its proportionality to σdc. The universality of ac conduction in carbon nanotubes-polymer composites is examined by the construction of master curves.

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“…The electrical resistivity of neat PLA has been reported to be ∼10 16 Ω cm thus, it can be categorized as an insulating polymer. The modification of the electrical conductivity of insulating polymers can be performed through the addition of conductive fillers such as metallic fillers, carbon black particles, carbon nanofillers, in addition to intercalation with intrinsically conductive polymers . High aspect ratio nanofillers such as nanographite platelets (NGP) may enhance the electrical conductivity of insulating polymers at low loading fractions, i.e.…”

Section: Resultsmentioning

confidence: 99%

The comparison between the effects of solvent casting and melt intercalation mixing processes on different characteristics of polylactide‐nanographite platelets composites

Narimissa

Gupta

Kao

et al. 2014

Polymer Engineering & Sci

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This study investigates the influence of enhanced dispersion of nanographite platelets (NGP) fillers through solvent casting mixing process on rheological, electrical and thermal properties of polylactide (PLA)/NGP composites. PLA/NGP composites were fabricated at 1 to 5 wt% filler contents by means of three processing techniques: (i) dry mixing and melt intercalation; (ii) solvent casting using dichloromethane organic solvent; and (iii) combination of solvent casting and melt intercalation techniques. The extent of dispersion of nanofillers within polymer matrix was evaluated through X-ray diffraction and transmission electron microscopy analysis of the composites. Morphological studies of the samples revealed that the maximum extent of dispersion of NGP fillers within PLA matrix was achieved when the combination of solvent casting and melt intercalation processes occurred. Rheological analyses of the samples were indicative of deterioration in the composites produced through solvent casting mixing process. Despite of initial reduction in electrical resistivity of the composites after the addition of 1 wt% of NGP fillers, further addition of nanofillers did not exhibit a considerable enhancement in their electrical conductivity of the composites. Thermogravimetric analysis of the composites was demonstrative of enhancing impact of nanofiller loading, along with detrimental effect of solvent casting on the thermal stability of the PLA matrix. POLYM. ENG. SCI., 55:1560-1570

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Multiple hopping conduction in interpenetrating polymer network composites of poly pyrrole and poly (styrene-co-butyl acrylate)

Cited by 11 publications

References 25 publications

Dielectric mixtures: electrical properties and modeling

Dielectric mixtures: electrical properties and modeling

DC and AC Conductivity of Carbon Nanotubes−Polyepoxy Composites

The comparison between the effects of solvent casting and melt intercalation mixing processes on different characteristics of polylactide‐nanographite platelets composites

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