Electrospun Nanofibers of Polypyrrole-Poly(Acrylonitrile-<i>co</i>-Vinyl Acetate)

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

doi:10.1177/0040517510365953

Cited by 36 publications

(20 citation statements)

References 40 publications

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“…s represents the AC conductivity. 38 The conductivity increase with frequency is a polymeric semiconductor response, which is due to the increase of the charge carrier mobility in PPy-coated cotton composites. The values of AC conductivity and the dielectric constant of coated fabrics increases with the increase of PPy content (Figures 3(a) and (b)).…”

Section: Resultsmentioning

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: Resultsmentioning

confidence: 99%

Dielectric and morphological studies of nanostructured polypyrrole-coated cotton fabrics

Çetiner

2014

Textile Research Journal

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“…Cerium (IV) ammonium nitrate (NH 4 ) 2 [Ce(NO 3 ) 6 ] and dimethylformamide (DMF) were all Merck reagents. PAN copolymer containing ∼10 wt% of vinyl acetate [P(AN‐ co ‐VAc)] was synthesized in our laboratory and details were given in our previous work [21]. Py was Aldrich reagent.…”

Section: Methodsmentioning

confidence: 99%

Dielectric, FTIR spectroscopic and atomic force microscopic studies on polypyrrole‐poly(acrylonitrile‐co‐vinyl acetate) composites

et al. 2011

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In this study, Poly(acrylonitrile‐co‐vinyl acetate) [P(AN‐co‐VAc)] composite films were fabricated by chemical polymerization of pyrrole (Py) with cerium(IV) (Ce(IV)) on P(AN‐co‐VAc) matrix. The effect of amount of Py and temperature on the composite film properties was studied in a frequency range starting from 0.05 Hz to 10 MHz and in a temperature range from 0 to 250°C. The electric modulus provides a good description of the dielectric relaxation of the conducting polymer composites. The atomic force microscopy images of the polypyrrole (PPy)‐P(AN‐co‐VAc) composites show the polymerization of Py on P(AN‐co‐VAc) matrix producing different sized grainy orientations resulting in higher conductivity values that increase with average grain size. The real [(ε′) or ε′(ω)] and imaginary [(ε″) or ε″(ω)] parts of the permittivity of PPy‐P(AN‐co‐VAc) composite were comparatively higher than PPy‐Polyacrylonitrile (PAN) and P(AN‐co‐VAc). It was also seen that the conductivity of PPy‐P(AN‐co‐VAc) composite was considerably higher than PPy‐PAN and P(AN‐co‐VAc) itself. POLYM. COMPOS., 2011. © 2011 Society of Plastics Engineers

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“…This behavior observed with the surface tension had a direct impact on the fiber diameter. These properties were previously investigated by our group [32] and have shown their direct influence on the fiber diameter and in accordance on electrochemical behaviors.…”

Section: Electrochemical Analysis Of Fiber and Thin Film Pan/ Pin Blendsmentioning

confidence: 52%

“…PAN and its copolymers are intensely used in textile industry in the form of fiber. Besides its good spinning capability, its environmental nature and commercial practicality were also very important to produce their fibers [32]. The obtained smart textile products are mainly used for industrial applications, such as microwave absorbing, electrostatic discharge, electromagnetic interference (EMI) shielding, and sensor applications [33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and electrochemical investigation of polyindole based fiber as sensor electrode by EIS method

2015

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Fibers of Polyacrylonitrile/Polyindole were prepared by electrospinning method. Fourier transform infrared spectroscopy (FTIR), Atomic force microscopy (AFM) and Scanning electron microscopy (SEM) were used for their structural characterization. The synthesis and characterization results showed that the incorporation of indole moieties affected the characteristic and topological properties of the polyacrylonitrile fiber. The fiber diameter was closely dependent to the polymer blend solution, surface tension, solution conductivity and viscosity. The results obtained by using Electrochemical impedance spectroscopy (EIS) showed that the fiber diameter affected the electrical conductivity of the fibers. It was discussed that the presence of Polyindole (PIN) content showed an electrocatalytic activity against K 3 Fe(CN) 6 / K 4 Fe(CN) 6 depending on the synthetic conditions, preparation process and the structure of organic matrix.

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Electrospun Nanofibers of Polypyrrole-Poly(Acrylonitrile-co-Vinyl Acetate)

Cited by 36 publications

References 40 publications

Dielectric and morphological studies of nanostructured polypyrrole-coated cotton fabrics

Dielectric and morphological studies of nanostructured polypyrrole-coated cotton fabrics

Dielectric, FTIR spectroscopic and atomic force microscopic studies on polypyrrole‐poly(acrylonitrile‐co‐vinyl acetate) composites

Synthesis and electrochemical investigation of polyindole based fiber as sensor electrode by EIS method

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