Preparation and optical/electrical/electrochemical properties of expanded graphite-filled polypyrrole nanocomposite

Konwer, Surajit; Maiti, Jatindranath; Dolui, Swapan Kumar

doi:10.1016/j.matchemphys.2011.03.013

Cited by 44 publications

(24 citation statements)

References 33 publications

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“…To measure the electrical conductivity, pellet‐shaped (1.5 cm diameter, 2 mm thick) composite samples were made using a compression‐moulding machine at a high pressure (1–2 tonnes). To measure the electrical conductivity of PTh and PTh/GO composites, the four‐probe technique was used in the temperature range 300–400 K. The electrical conductivity ( σ , S cm −1 ) of the composite was calculated using the following equations:

ρ = \frac{italicV}{italicI} \times 2 π S

σ = \frac{1}{ρ}

…”

Section: Methodsmentioning

confidence: 99%

Synthesis of polythiophene/graphene oxide composites by interfacial polymerization and evaluation of their electrical and electrochemical properties

Bora

Pegu

Saikia

et al. 2014

Polymer International

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ρ = \frac{italicV}{italicI} \times 2 π S

σ = \frac{1}{ρ}

…”

Section: Methodsmentioning

confidence: 99%

Synthesis of polythiophene/graphene oxide composites by interfacial polymerization and evaluation of their electrical and electrochemical properties

Bora

Pegu

Saikia

et al. 2014

Polymer International

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“…The former is contributed to the π − π* interband transition, namely, transition from valence band to the conduction band of neutral state of PPy, which is indicative of the formation of PPy [10]. As for the broad absorption band, it reveals the take place of the polymerization [16]. For those PPy derivatives, it is obvious to find that all of them have absorption peak at around 280 nm, but with some shift in the peak position.…”

Section: Linear Optical Absorption Analysismentioning

confidence: 97%

Nonlinear Optical Properties of Novel Polypyrrole Derivatives Bearing Different Aromatic Segments

Zhao¹,

Wang²,

Wang³

2017

MSA

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Polypyrrole (PPy) and its derivatives containing different aromatic segments were synthesized by the interfacial polymerization reaction using ammonium per sulfate as oxidant, and were characterized by using Fourier transform infrared, Ultraviolet/visible absorption, and Raman spectroscopic techniques. The third-order nonlinear optical properties of all samples were measured by using nanosecond Z-scan measurements at 532 nm. At the identical mass concentration of 0.15 mg•mL −1 , all PPy derivatives exhibited an obvious reverse saturable absorption performance, while the saturable absorption response was observed for PPy. In addition, significant differences in their nonlinear optical performances were observed, highlighting the influence on optical nonlinearity of the aromatic segments of conjugated polymers.

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“…However, CTNs are very expensive for large-scale applications. Other conductive fillers such as graphite and its variants are being used provide electrical conductive properties to polymeric matrices [9,10]. Graphite, is very cheap, abundant, has an elevated electrical conductivity (10 4 S · cm −1 ), and increases the mechanical properties of polymers having a reinforcing effect on the polymeric material [10].…”

Section: Introductionmentioning

confidence: 99%

An experimental study of dynamic behaviour of graphite–polycarbonatediol polyurethane composites for protective coatings

Gómez

Culebras

Cantarero

et al. 2013

Applied Surface Science

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Segmented polycarbonatediol polyurethane has been synthesized and modified with different amounts of graphite conductive filler (from 0 to 50 wt %). Thermal and Dynamical thermal analysis behavior of the composites clearly indicates the changes in polyurethane relaxations upon addition of graphite. Broadband Dielectric Spectroscopy has been used to study the dielectric properties of the composites in the frequency range from 10 −2 to 10 7 Hz and temperature window of -140 to 170 • C. Conductivity, relaxation processes associated with different molecular motions, Maxwell-Wagner-Sillars and electrode polarization are discussed and related with the graphite content.

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Preparation and optical/electrical/electrochemical properties of expanded graphite-filled polypyrrole nanocomposite

Cited by 44 publications

References 33 publications

Synthesis of polythiophene/graphene oxide composites by interfacial polymerization and evaluation of their electrical and electrochemical properties

Synthesis of polythiophene/graphene oxide composites by interfacial polymerization and evaluation of their electrical and electrochemical properties

Nonlinear Optical Properties of Novel Polypyrrole Derivatives Bearing Different Aromatic Segments

An experimental study of dynamic behaviour of graphite–polycarbonatediol polyurethane composites for protective coatings

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