Absorption induced response of electrophysical characteristics of filled polymer-composite

Godovski, D.Yu.; Sukharev, Valeriy; Волков, А. В.; Москвина, М. А.

doi:10.1016/0022-3697(93)90357-w

Cited by 13 publications

(12 citation statements)

References 8 publications

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“…As determined in the characterization section, the LPH13 after purification is composed of CuS (covellite) nanoparticles mixed with ι‐carrageenan. Hence, the variation of the sensor resistance is attributed to either the change in electrical permittivity of the polymer matrix or the swelling of the hydrophilic carrageenan [56] . The precipitated CuS (covellite) was tested as well.…”

Section: Resultsmentioning

confidence: 99%

CuS‐Carrageenan Composite Grown from the Gel/Liquid Interface

Zouheir

Torop

et al. 2021

ChemSystemsChem

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The aim of this study is to highlight novel CuS‐carrageenan nanocomposites grown from the interface between sulfide solutions (liquid phases) and Cu‐ι‐carrageenan gels. Several parameters including pH, copper and carrageenan concentration of the hydrogel that influence the growth of the nanocomposite have been examined. The most effective parameter is the initial pH of the liquid phase, hence, three growing samples at pH 7, 10 and 13 were selected for further studies and referred as LPH7, LPH10 and LPH13. Three CuS‐carrageenan nanocomposites obtained from the three pH conditions were purified and examined in detail using several characterization techniques such as X‐ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and X‐ray photoelectron spectroscopy (XPS). The structure, composition, properties as well as the growth mechanism of the nanocomposite have been studied. Additionally, the electrical conductivity of the nanocomposite was exploited to be used as a sensor of relative humidity and temperature.

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Section: Resultsmentioning

confidence: 99%

CuS‐Carrageenan Composite Grown from the Gel/Liquid Interface

Zouheir

Torop

et al. 2021

ChemSystemsChem

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“…These materials have attracted much interest due to the remarkable change in properties such as mechanical [11], thermal [12], photoelectrochemical [10], electrical [13] and magnetic [14] compared to pure organic polymers.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterisation of polypyrrole–indium phosphide composite film

Habelhames

Nessark

Bouhafs³

et al. 2009

Ionics

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Polypyrrole (PPy)-indium phosphide (InP) composite material was electrochemically prepared by the incorporation of InP into a PPy matrix during electrochemical synthesis (cycling) under magnetic stirring from the acetonitrile/LiClO4 electrolyte containing the Py and InP particles. The PPy-InP composite material was designed to explore new approaches to improve light-collection efficiency in polymer photovoltaic. The samples were characterised by cyclic voltammetry, impedance spectroscopy measurement, scanning electron microscopy, energy dispersive X-ray spectroscopy, UV-visible and photoelectrochemical measurements. It was observed that the photocurrent of the composites was higher than that of the single PPy films and increased with InP concentration. The study showed that the presence of InP particles in the polymeric film improves the optical and the photovoltaic properties of PPy and give information on the use possibility of these films for photovoltaic cells' application.

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“…Helical (TTGG) conformations are formed in solution‐recovered sPS, whereas the more favorable all‐trans (TTTT) conformations are formed either from the melt or from annealing at elevated temperatures 4–8. Blends of thermoplastic polymers with montmorillonite have been extensively studied because small amounts of well‐dispersed clay in polymer matrices can improve their mechanical properties, optical properties, and magnetic behavior,9–12 particularly for nylon‐6/clay hybrids 13–15. The clay of a polymer/clay hybrid can be more thoroughly dispersed on a nanometer scale via the insertion of the polymer chains into the silicate interlayers of the clay if the clay is pretreated with an appropriate surfactant 16.…”

Section: Introductionmentioning

confidence: 99%

Crystallization kinetics and crystallization behavior of syndiotactic polystyrene/clay nanocomposites

Tseng

Lee

Chang

2001

J Polym Sci B Polym Phys

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We investigated the effects of montmorillonite (clay) on the crystallization kinetics of syndiotactic polystyrene (sPS) with isothermal differential scanning calorimetry analyses. The clay was dispersed into the sPS matrix via melt blending on a scale of 1-2 nm or up to about 100 nm, depending on the surfactant treatment. For a crystallization temperature of 240°C, the isothermal crystallization data were fitted well with the Avrami crystallization equation. Crystallization data on the kinetic parameters (i.e., the crystallization rate constant, Avrami exponent, clay content, and clay/surfactant cation-exchange ratio) were also investigated. Experimental results indicated that the crystallization rate constant of the sPS nanocomposite increased with increasing clay content. The clay played a vital role in facilitating the formation on the thermodynamically more favorable all-␤-form crystal when the sPS was meltcrystallized.

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Absorption induced response of electrophysical characteristics of filled polymer-composite

Cited by 13 publications

References 8 publications

CuS‐Carrageenan Composite Grown from the Gel/Liquid Interface

CuS‐Carrageenan Composite Grown from the Gel/Liquid Interface

Synthesis and characterisation of polypyrrole–indium phosphide composite film

Crystallization kinetics and crystallization behavior of syndiotactic polystyrene/clay nanocomposites

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