Ultrasonic properties of polystyrene-based composites

In this study, first the pure polystyrenes (PS) with different molecular weights (350 × 103 and 500 × 103) have been modified by the chemical modification with succinic anhydride (SA), maleic anhydride (MA), and phthalic anhydride (PhA) and then the polystyrene based composites (CPS) prepared by add...

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Veröffentlicht in:Journal of applied polymer science 2012-07, Vol.125 (2), p.1226-1237
Hauptverfasser: Oral, Imran, Guzel, Hatice, Ahmetli, Gulnare
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creator Oral, Imran
Guzel, Hatice
Ahmetli, Gulnare
description In this study, first the pure polystyrenes (PS) with different molecular weights (350 × 103 and 500 × 103) have been modified by the chemical modification with succinic anhydride (SA), maleic anhydride (MA), and phthalic anhydride (PhA) and then the polystyrene based composites (CPS) prepared by addition of modified polystyrenes (MPS) into pure PS (with the molecular weight of 230 × 103) in weight % ratios of 90 : 10, 80 : 20, and 70 : 30. Ultrasonic measurements were performed on PS/MPS blends of different weight percent of MPSs by use of pulse echo method with 5‐MHz frequency at room temperature. Elastic properties namely; longitudinal modulus (L), Young's modulus (E), bulk modulus (K) and shear modulus (G), Poisson's ratio (μ), and acoustic impedance (Z) were calculated from the ultrasonic velocities values measured and densities values obtained experimentally. Atomic force microscopy (AFM) has been used for determining the microstructure of composites. The variations of these parameters with increasing MPSs weight percentage content in PS/MPS from 10 to 30 have been discussed. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
doi_str_mv 10.1002/app.34926
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Ultrasonic measurements were performed on PS/MPS blends of different weight percent of MPSs by use of pulse echo method with 5‐MHz frequency at room temperature. Elastic properties namely; longitudinal modulus (L), Young's modulus (E), bulk modulus (K) and shear modulus (G), Poisson's ratio (μ), and acoustic impedance (Z) were calculated from the ultrasonic velocities values measured and densities values obtained experimentally. Atomic force microscopy (AFM) has been used for determining the microstructure of composites. The variations of these parameters with increasing MPSs weight percentage content in PS/MPS from 10 to 30 have been discussed. © 2012 Wiley Periodicals, Inc. 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subjects Anhydrides
Applied sciences
Atomic force microscopy
Blends
Chemical modifications
Chemical reactions and properties
compatibility
composites
Density
elastic properties
Exact sciences and technology
Materials science
Molecular weight
Organic polymers
Physicochemistry of polymers
Polymer blends
Polymer matrix composites
Polymers
polystyrene
Polystyrene resins
ultrasound
title Ultrasonic properties of polystyrene-based composites
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