Characterization of conductive poly(acrylonitrile-co-vinyl acetate) composites: Matrix polymerization of pyrrole derivatives

Çetiner, Suat; Kalaoğlu, Fatma; Karakas, Hale; Sarac, A. Sezai̇

doi:10.1007/s12221-011-0151-z

Cited by 13 publications

(10 citation statements)

References 37 publications

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“…It was pointed out by Varesano et al 47 that PPy-coated fibers are less stable to heating than uncoated fibers because of the breakdown of the PPy backbone. According to the literature, the major weight loss of PPy occurs between 190 and 210 C. 52 So the coated cotton fabrics begin to decompose between the decomposition temperature of uncoated cotton fabric and PPy.…”

Section: Thermal Analysismentioning

confidence: 99%

Dielectric and morphological studies of nanostructured polypyrrole-coated cotton fabrics

Çetiner

2014

Textile Research Journal

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In this study, nanostructured polypyrrole (PPy)-coated cotton textiles were produced by in situ chemical oxidative polymerization and dielectric/electrical properties of PPy-coated cotton fabrics were presented in the low-and highfrequency regions. The conductive cotton fabrics showed a relatively high dielectric constant in the low-and radiofrequency region. The dielectric constant and dielectric loss for all fabrics presented relatively high values at low frequency and were found to decrease with the frequency. The influence of the PPy content and the type of dopant and oxidant on the morphological, dielectric/electrical and thermal properties of the cotton fabrics was investigated. It was found that the type of dopants and oxidants had a noticeable effect on the electrical/dielectric and morphological properties. The frequency dependence of AC conductivity, dielectric constant, dielectric loss and electric modulus were analyzed in the frequency range from 0.1 kHz to 10 MHz. The nanofiber network morphology of coated fabrics produced by dodecylbenzenesulfonic acid sodium salt improved the electrical/dielectric and thermal properties of cotton composites.

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Section: Thermal Analysismentioning

confidence: 99%

Dielectric and morphological studies of nanostructured polypyrrole-coated cotton fabrics

Çetiner

2014

Textile Research Journal

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“…Among the alternatives such as inorganic or organic hole conductors 1 , ionic liquids 2 , polymer gel electrolytes 3,4 stand out because of their excellent properties such as easy fabrication, low cost, and good stability. Since the first report by Gratzel, the overall efficiency as high as 11% has been achieved with liquid electrolytes through various works.…”

Section: Introductionmentioning

confidence: 99%

High-performance dye-sensitized solar cell based on an electrospun poly(vinylidene fluoride-co-hexafluoropropylene)/cobalt sulfide nanocomposite membrane electrolyte

et al. 2015

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Different weight percentage (1, 2 and 3wt%) of cobalt sulfide incorporated (CoS) incorporated electrospun poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) nanocomposite membranes were prepared by electrospinning technique. The surface morphology, crystallinity, porosity and electrolyte uptake of the electrospun nanocomposite membranes were examined. The prepared electrospun PVdF-HFP/CoS nanocomposite membranes (esCPM) were activated by ionic liquid electrolyte containing 0.5M LiI, 0.05M I 2 and 0.5M 4-tert butylpyridine, 0.5M 1-Butyl-3-methylimidazolium iodide in acetonitrile to obtain electrospun PVdF-HFP/CoS nanocomposite membrane electrolytes (esCPMEs). The uniformly dispersed CoS nanoparticles increase the charge transport and facilitate the diffusion of redox couple in the electrolyte system. The electrochemical characteristics of dye-sensitized solar cell (DSSC) depends on the amount of CoS incorporated in esCPME wasalso studied in detail. The photovoltaic performance of DSSC assembled using 1wt% of CoS incorporated esCPME was measured and it was found to be 7.34%, which is higher than that assembled using esPME (6.42%).

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“…3. There is much difference in mechanical strength between P(AN‐ co ‐BuA) and PAN and poly(acrylonitrile‐ co ‐vinyl acetate) [P(AN‐ co ‐VAc)] 24…”

Section: Resultsmentioning

confidence: 99%

Polypyrrole/Poly(acrylonitrile‐co‐butyl acrylate) Composite

Unsal¹,

Kalaoğlu²,

Karakas³

et al. 2012

Adv Polym Technol

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Poly(acrylonitrile-co-butyl acrylate) [P(AN-co-BuA)] was synthesized from acrylonitrile (AN) 95% and butyl acrylate (BuA) 5%-molar ratios-by free-radical polymerization in aqueous media, using ceric ammonium nitrate as an initiator. Pyrrole was oxidatively polymerized in dimethylformamide in the presence of P(AN-co-BuA) matrix to produce polypyrrole (PPy) composites. Composite thin films were produced by solution casting onto smooth glass surfaces. Scanning electron microscopy and Fourier transform infrared-attenuated total reflectance analysis of thin films revealed the presence of PPy in the composite structure. Electrical impedance measurements were conducted to reveal the electrical conductivity change due to increasing PPy content. Enhancing the flexibility of PPy structures, as a composite film composed of PPy, could find substantial utility in the application of PPy products. BuA in a copolymer structure with AN improved the mechanical properties of the resulting copolymer by compensating the mechanical disadvantages of PPy. The

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Characterization of conductive poly(acrylonitrile-co-vinyl acetate) composites: Matrix polymerization of pyrrole derivatives

Cited by 13 publications

References 37 publications

Dielectric and morphological studies of nanostructured polypyrrole-coated cotton fabrics

Dielectric and morphological studies of nanostructured polypyrrole-coated cotton fabrics

High-performance dye-sensitized solar cell based on an electrospun poly(vinylidene fluoride-co-hexafluoropropylene)/cobalt sulfide nanocomposite membrane electrolyte

Polypyrrole/Poly(acrylonitrile‐co‐butyl acrylate) Composite

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