Electrical properties of sorbitol‐doped poly(vinyl alcohol)–poly(acrylamide‐co‐acrylic acid) polymer membranes

Abstract

Solid polymer membranes from poly(vinyl alcohol) (PVA) and poly(acrylamide‐co‐acrylic acid) (PAA) with varying doping ratios of sorbitol were prepared using the solution casting method. The films were examined with Fourier transform infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, and AC impedance spectroscopy. The impedance measurements showed that the ionic conductivity of PVA–PAA polymer membrane can be controlled by controlled doping of sorbitol within the polymer blends. The PVA–PAA–sorbitol membranes were found to exhibit excellent thermal properties and were stable for a wide temperature range (398–563K), which creates a possibility of using them as suitable polymers for device applications. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

Fabrication and characterization of poly(vinyl alcohol)—Glycerol—Spinel ferrites flexible membranes

“…Poly(vinyl alcohol) (PVA) is a water‐soluble synthetic polymer that is formed from a hydrolysis process of poly(vinylacetate) . It has high chain flexibility as well as high concentration for the polar groupsaccording to the polymer's molar mass.…”

“…In previous investigations, the influences of blending PVA with different ratios of plasticizers on electrical, structural, and mechanical properties of the membranes were examined. The studies demonstrated that the addition of plasticizers to PVA enabled the control of its electrical conductivity and decreased the interaction among the macromolecules that increased the flexibility of its membranes.…”

“…Poly(vinyl alcohol) (PVA) is a water-soluble synthetic polymer that is formed from a hydrolysis process of poly(vinylacetate). 1 It has high chain flexibility as well as high concentration for the polar groupsaccording to the polymer's molar mass. PVA is typically mixed with natural polymers to produce biodegradable blends because of its water solubility and thin film forming characteristics.…”

“…12 The analysis enables identification of capacitance and charge transfer for composite membranes, the influence of blocking electrodes, the effect of grain boundaries, and so forth. 13 In previous investigations, 1,2,14,15 the influences of blending PVA with different ratios of plasticizers on electrical, structural, and mechanical properties of the membranes were examined. The studies demonstrated that the addition of plasticizers to PVA enabled the control of its electrical conductivity and decreased the interaction among the macromolecules that increased the flexibility of its membranes.…”

Integrated Piezoelectric Energy Harvesting and Organic Storage System

“…The preparation of the semiconducting blend polymer is described by Josh et al (2013). Briefly, poly-vinyl alcohol (PVA) and poly-acrylic acid (PAA) with average molecular weights of 61,000 g/mol and 5,000,000 g/mol, respectively, were used.…”