Percolated conductive polyaniline-clay nanocomposite in polyvinyl chloride through the combined approach porous template and self-assembly

Devaki, Sudha J.; Sivakala, S.; Chandrakanth, C. K.; Sadanandhan, Neethu K.; Rohini, K N; Ramakrishnan, Rajaraman

doi:10.3144/expresspolymlett.2014.13

Cited by 18 publications

(15 citation statements)

References 31 publications

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“…The best value of copolymer yield was obtained with maghnite-H + 0.25 M, in which there is a complete saturation of montmorillonite with protons without destruction of catalyst structure [31]. Maghnite-H + was found to have a BET surface area (SSA) of 59.45 m 2 /g, an average pore diameter of 62.46 Å and total pore volume of 0.00772 cm 3 /g.…”

Section: Characterization Spectroscopic and Thermal Of Catalystmentioning

confidence: 99%

Synthesis and Characterization of Polymeric Material Consisting on Acrylamide Catalyzed by Maghnite (Algerian MMT) under Microwave Irradiation

Rahmouni¹,

Belbachir²

2019

Characterizations of Some Composite Materials

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Intercalation of acrylamide into interlayer spaces of natural montmorillonite called maghnite (Algerian MMT) by the free solvent polymerization technique under microwave irradiation was studied. The transformation was carried out with using both the raw (maghnite-Na fin) and treated clay (maghnite-Na + fin) in aqueous sodium hydroxide NaOH solution (1 M). It was shown that no initial modification of the layered mineral (by ion-exchange with Na + cations or organophilization) is needed for the successful introduction of anionic hydrogels into the interlayer gallery. The goal of the present study was to synthesis anionic polyacrylamide/maghnite composite with similar composition and structure to that synthesized of other catalyst. Maghnite catalyst has a significant role in the industrial scale. In fact, the use of maghnite is preferred for its many advantages: a very low purchase price compared to other catalysts, the easy removal of the reaction mixture. The anionic sodium-clay polyacrylamide material exhibited a tendency to the formation of exfoliated structure. The synthesized hydrogels, as monitored by the swelling behavior were characterized by Fourier transform infrared and 1 HNMR analysis.

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Section: Characterization Spectroscopic and Thermal Of Catalystmentioning

confidence: 99%

Synthesis and Characterization of Polymeric Material Consisting on Acrylamide Catalyzed by Maghnite (Algerian MMT) under Microwave Irradiation

Rahmouni¹,

Belbachir²

2019

Characterizations of Some Composite Materials

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“…The IR bands near 772, 3,447 cm -1 also indicate the presence of kaolinite mineral. IR PANI showed characteristic bands at 1,543 and 1,426 cm -1 (stretching vibration of quinoid ring and benzenoid ring), 3,100 cm -1 (N-H str), 2,900 cm -1 (C-H str), and 1,291 cm -1 (C-N) [15].…”

Section: Characterizationsmentioning

confidence: 99%

Preparation of polyaniline-modified local clay and study of its sorption capacity

et al. 2014

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Clay minerals are frequently used in adsorption processes with aqueous solution; it was found that the adsorption properties of clays change when the samples are modified. In this context, polyaniline-modified clay nanocomposite (at 10 %) was prepared by in situ polymerization processes. The structural and morphological characteristics of the synthesized material are systematically examined by X-ray diffraction, scanning electron microscopy, thermo-gravimetry, differential scanning calorimetry and infrared spectroscopy techniques. The adsorption property of the modified clay was evaluated for the removal of a reactive dye (methylene blue) from aqueous solution at room temperature (25°C) via batch adsorption.

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“…Blending of insulating polymeric matrices and electrically conducting polymers has been receiving great attention in recent years due to a combination of conventional properties of traditional polymers such as easy processability, low density, environmental stability, and corrosion resistance, with the electrical properties of the conducting ones . These conducting polymers are a class of functional materials in which the polymeric chains are constituted by alternated single and double carbon‐carbon bonds.…”

Section: Introductionmentioning

confidence: 99%

“…The improvement degree depends on the properties of the compounds involved in the system . There are some reports in the literature on the use of MMT clay modified with Pani in different polymeric matrices . In all these works, the nanocomposites were produced by in‐situ polymerization and observed an improvement in dielectric and mechanical properties, showing the feasibility of using these hybrid nanocomposites in a wide range of applications.…”

Section: Introductionmentioning

confidence: 99%

Plasticizer effect and electronic diffusive behavior of polyaniline‐modified clay in polystyrene nanocomposites

et al. 2017

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Montmorillonite clay (MMT) was modified with polyaniline (Pani) and used to produce nanocomposites in a polystyrene (PS) matrix. MMT/Pani particles were evaluated by Infrared Spectroscopy (FT-IR), where groups of both MMT and Pani were found; and by XRD, where an increase in the interlamellar distance was detected, changes on the resistive electrical behavior of MMT to a diffusive one for MMT/Pani were identified by Electrochemical Impedance Spectroscopy (EIS). Nanocomposites of PS with MMT-Pani were produced by melt intercalation in the proportions of 1%, 3%, 5%, and 10%. They were characterized by Transmission Electron Microscopy (TEM), Differential Scanning Calorimetry (DSC), Thermogravimetry (TG), and EIS. Main results showed a decrease in the glass transition temperature and in the onset temperature according to the amount of MMT-Pani. Analyses by EIS demonstrated a capacitive behavior (polarization) for nanocomposites containing smaller amounts of MMT-Pani and diffusive behavior for the largest proportions, which were explained by a model of electronic diffusion in the Pani polymeric chain due to the chain intercalation observed by TEM in samples with higher concentration of MMT-Pani. Therefore, the results suggest that the addition of MMT-Pani alters some properties of the polystyrene matrix, changing its degradation and transition temperature, and its electrical behavior. POLYM. COMPOS., 00:000-000, 2017. FIG. 7. EIS spectra (Bode plots) for the nanocomposites of PS with the modified Pani/MMT clay at different compositions. (a) Log Z vs. frequency; and (b) phase angle vs. frequency. FIG. 8. Schematic view of current flow through Pani interphase between MMT platelets and PS matrix.

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Percolated conductive polyaniline-clay nanocomposite in polyvinyl chloride through the combined approach porous template and self-assembly

Cited by 18 publications

References 31 publications

Synthesis and Characterization of Polymeric Material Consisting on Acrylamide Catalyzed by Maghnite (Algerian MMT) under Microwave Irradiation

Synthesis and Characterization of Polymeric Material Consisting on Acrylamide Catalyzed by Maghnite (Algerian MMT) under Microwave Irradiation

Preparation of polyaniline-modified local clay and study of its sorption capacity

Plasticizer effect and electronic diffusive behavior of polyaniline‐modified clay in polystyrene nanocomposites

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