Synthesis and characterization of polyaniline/graphite composites and study of their electrical and electrochemical properties

Konwer, Surajit; Pokhrel, B.; Dolui, Swapan Kumar

doi:10.1002/app.31633

Cited by 13 publications

(4 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The manufacture of light weight polymer composites with high electrical conductivity has been a research focus in recent years [1][2][3][4][5][6]. Different conductive fillers such as carbon black and metallic powder have been extensively explored as composite components.…”

Section: Introductionmentioning

confidence: 99%

Dispersion of nanoplatelets of graphite on PMMA matrix byin situpolymerisation technique

Swain

Prusty

Ray

et al. 2012

Journal of Experimental Nanoscience

View full text Add to dashboard Cite

Poly(methyl methacrylate)/expanded graphite (PMMA/EG) composites were prepared by the incorporation of EG in various proportions (1%, 2%, 3%, 4% and 5%) with PMMA by in situ polymerisation technique. The polymer composites were characterised by ultraviolet-visible (UV-vis) and Fourier transform infra-red spectroscopies. The structural property of PMMA/EG nanocomposites was studied by X-ray diffraction. The scanning electron microscopy and transmission electron microscopy of synthesised composites were taken in order to study their morphological properties. The conductivity of composites was measured as function of EG concentration. It was found that conductivity of composites gradually increased with the increase in EG loading. Oxygen permeability of PMMA/EG nanocomposites was calculated and it was found that the property was reduced substantially with rise of EG proportion. The thermal stability of PMMA/EG nanocomposites was improved by dispersion of EG with PMMA matrix.

show abstract

Section: Introductionmentioning

confidence: 99%

Dispersion of nanoplatelets of graphite on PMMA matrix byin situpolymerisation technique

Swain

Prusty

Ray

et al. 2012

Journal of Experimental Nanoscience

View full text Add to dashboard Cite

show abstract

“…a and b represent the XRD pattern of native gel and graphite impregnated gel, respectively. The different peaks were observed at 2θ, 26.6, 44.6, and 54°, respectively and are matched with (002), (101), and (004) planes of the hexagonal system with primitive structure of graphite . These peaks were absent in the native gel.…”

Section: Results and Discusionmentioning

confidence: 77%

Electrical actuation of electroresponsive hydrogels based on poly(acrylamide‐co‐acrylic acid)/graphite suitable for biomedical applications

et al. 2013

View full text Add to dashboard Cite

A pH-sensitive composite hydrogel based on poly (acrylamide-co-acrylic acid)/graphite was prepared by solution polymerization process in presence of redox initiator potassium persulfate/N,N,N 0 ,N 0 -tetramethylethylenediamine and cross-linker (ethylene glycol dimethylacrylate). The structures of the hydrogels were confirmed using Fourier transform infrared, X-ray diffraction, and scanning electron microscopy (SEM) study. Tensile strengths of the hydrogels were determined by using a universal tensile machine, whereas the electrical conductivities of the hydrogels were evaluated using Four-probe method. The influence of cross-linker, graphite content, and temperature on the conductivity of the hydrogel was also investigated. The bending behavior of the conducting hydrogels was investigated by exposing the hydrogels under electric field in aqueous medium. By studying the swelling ratio of the polymer synthesized under different conditions, optimization conditions were found for a polymer with the highest swelling ratio. Also, the hemolytic potentiality test revealed that prepared hydrogels are biocompatible in nature. POLYM. COMPOS., 35:27-36, 2014.

show abstract

“…Figure 9 showed the variation of conductivity of the core-shell composites with the temperature range of 303 K C T C 413 K. At higher temperature the inter-chain and intra-chain hopping increases which results in high charge carrier mobility within the composite. This high charge carrier mobility leads to an increase in the conductivity at high temperatures [21,22]. Conductivity also increased with increase the concentration of graphite.…”

Section: Uv-visible Studymentioning

confidence: 87%

“…The PA/carbon filler composites, prepared by in situ polymerization [20], exhibited greatly improved conductivity, thermal stability, and mechanical properties in comparison with the pure PA. The in situ growth of PA as a thin layer on various materials, such as metals, micro-and nano-porous materials was also reported [21,22]. To the best of our knowledge there is no report on graphite filled PA/poly (styrene-co-methyl acrylate) coreshell composites that possesses electrical, electrochemical behaviours.…”

Section: Introductionmentioning

confidence: 87%

Synthesis of graphite incorporated core–shell composite of styrene-methylacrylate/polyaniline by surfactant free mini-emulsion polymerization and evaluation of their electrical property

Konwer

Barthakur²,

Dolui

2011

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

A series of core-shell particles (SMAP/G) having polystyrene-methylacrylate copolymer (styrenemethyl acrylate) as the core and graphite incorporated polyaniline as the shell were prepared by surfactant free mini-emulsion polymerization. Here poly (SMA) copolymer latex particles were first dispersed in water and then coated with polyaniline (PA) by in situ polymerization of aniline in presence of different percentage (0.25, 0.50 and 1.0%) of graphite. The composite particles were characterized by FTIR, XRD and TGA. TEM and SEM analysis confirms the core-shell morphology of the composite particles. DC electrical conductivity values of all the samples were measured by using a standard four-probe method. The effect of temperature and the amount of graphite incorporated into the PA shell on the dc electrical conductivity of the core-shell composites was investigated. The electro chemical behaviour of the core-shell composites was studied by using a cyclic voltammeter. Electro chemical data shows that the core-shell composites are sufficiently stable under redox potential of 50 mV/s to find applications in various electronic devices.

show abstract

Synthesis and characterization of polyaniline/graphite composites and study of their electrical and electrochemical properties

Cited by 13 publications

References 39 publications

Dispersion of nanoplatelets of graphite on PMMA matrix byin situpolymerisation technique

Dispersion of nanoplatelets of graphite on PMMA matrix byin situpolymerisation technique

Electrical actuation of electroresponsive hydrogels based on poly(acrylamide‐co‐acrylic acid)/graphite suitable for biomedical applications

Synthesis of graphite incorporated core–shell composite of styrene-methylacrylate/polyaniline by surfactant free mini-emulsion polymerization and evaluation of their electrical property

Contact Info

Product

Resources

About