Electrical Conduction in a Polyblend of Polyvinyl Pyrrolidone and Polyacrylamide

Rao, S. Sreepathi; Rao, K. V.; Shareefuddin, Md.; Chary, M. Narasimha; Reddy, K. Narasimha; Rao, Uma

doi:10.1002/crat.2170270718

Cited by 2 publications

(2 citation statements)

References 22 publications

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“…As a result, apart from a variety of silver polymer electrolytes, new systems based on PEO-AgNO 3 , polypropylene glycol (PPG)-AgCF 3 SO 3 , PEO-silver trifluoroacetate (AgCF 3 COO), PEO-silver trifluoroborate (AgBF 4 ), polyphospazene-AgCF 3 SO 3 and poly(2-ethyl-2-oxazoline) (POX)-poly(vinylpyrrolidone) (PVP)-AgCF 3 SO 3 (or AgBF 4 ) were also developed recently [6][7][8][9][10][11][12][13]. It is now generally believed that the mobility of charge carriers within a polymer-salt complex would be influenced by various parameters like ion-ion interactions and formation of ionpairs.…”

Section: Introductionmentioning

confidence: 99%

Vibrational spectroscopic and electrochemical characteristics of poly (propylene glycol)-silver triflate polymer electrolyte system

Suthanthiraraj

Paul

2009

Ionics

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Fourier transform infrared spectroscopic and electrochemical complex impedance studies have been carried out on a series of complexes containing poly (propylene glycol) of molecular weight 4,000 and silver triflate (AgCF 3 SO 3 ) salt corresponding to the ether oxygen to metal cation ratios (O : M) in the range 16:1 to 12:1. The formation of ion pairs and aggregates noticed in the case of specimens having high salt concentrations as well as the complete coordination of the cation with the ether oxygen at low salt concentrations within the PPG4000-AgCF 3 SO 3 polymer electrolyte system have been confirmed. The appearance of two weak triflate bands at 1,032 and 1,272 cm −1 in the absorption spectra in respect of low salt concentrations is indicative of the fact that triflate ions are free within the polymer matrix. The room temperature (298 K) electrical conductivity is found to increase with increasing ether oxygen content while exhibiting the maximum value of 7.1×10 −5 Scm −1 possibly due to silver ionic transport in the case of the typical composition having an O : M ratio of 16:1.

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Section: Introductionmentioning

confidence: 99%

Vibrational spectroscopic and electrochemical characteristics of poly (propylene glycol)-silver triflate polymer electrolyte system

Suthanthiraraj

Paul

2009

Ionics

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“…Several experimental techniques have been employed to study the polymer blends such as dielectric relaxation [15,16], nuclear magnetic resonance [17,18] and electron spin resonance [19]. Thermally stimulated discharge current (TSDC) studies in polyacrylamide(PAAm) and the electrical conduction phenomena and TSDC studies in polyvinyl alcohol(PVA) in the low temperature have been reported earlier [20][21][22][23][24]. The thermally stimulated luminescence (TSL) in PAAm-PVA blends have been made and results are correlated with the results obtained from differential scanning calorimetry (DSC) and Optical microphotography [25].…”

Section: Introductionmentioning

confidence: 99%

Physical Properties of Polyacrylamide/Polyvinylalcohol Silica Nanocomposites

Abulyazied¹,

Mansour²,

Mazrouaa³

et al. 2016

J. Res. Updates Polym. Sci.

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In this paper, samples of Polyacrylamide (PAAm) nanosilica nanocomposites were prepared having different concentration of nanosilica (0.125, 0.25, and 0.5). Polyacrylamide (PAAm) and poly (vinyl alcohol) (PVA) were blended with different ratio (3/1, 1/1, 1/3) using solution-cast technique. The prepared films were characterized by Fourier transform infrared (FTIR), X-ray diffractions (XRD) and scanning electron microscopy (SEM). FTIR spectra showed the presence of hydrogen bonding between-CONH2 groups in PAAm and-OH group in PVA and confirm the hydrophilic nature of the blends. X-ray diffractions shows the presence of a strong broad peak centered at 22º (2) confirms the amorphous nature of silica which is supposed to be the characteristic of SiO2. The results obtained from different experimental techniques were supported by SEM image analysis. The thermal stability of the nanocomposites enhanced by increasing the silica content in the blend. The DC electrical conductivity was studied for all prepared samples. It was found that the conductivity increase by increasing silica content as well as, increased by increasing the wt% of PVA.

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Electrical Conduction in a Polyblend of Polyvinyl Pyrrolidone and Polyacrylamide

Cited by 2 publications

References 22 publications

Vibrational spectroscopic and electrochemical characteristics of poly (propylene glycol)-silver triflate polymer electrolyte system

Vibrational spectroscopic and electrochemical characteristics of poly (propylene glycol)-silver triflate polymer electrolyte system

Physical Properties of Polyacrylamide/Polyvinylalcohol Silica Nanocomposites

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