Determining the Elastic Properties of Modified Polystyrenes by Sound Velocity Measurements

Date

2011-09-15

Author

Oral, Imran
Guzel, Hatice
Ahmetli, Gulnare
Gür, Cemil Hakan

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The effect of the binding of various polyfunctional groups to polystyrene's (PS's) aromatic ring on the elastic properties of the PS were investigated by an ultrasonic method. Various sets of samples were prepared by chemical modification of pure PSs having different molecular weights with SA, maleic anhydride, and phthalic anhydride. The ultrasonic wave velocities of modified PSs were measured with the pulse-echo method at room temperature by a computer-controlled analyzer and a digital oscilloscope. The values of the acoustic impedance, Poisson's ratio, and elasticity constants of the samples were calculated by the measured values of the densities and sound velocities. The longitudinal and shear wave velocities and the values of all elastic constants increased with chemical modification of the pure PS. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 3425-3432, 2011

Subject Keywords

Materials Chemistry, General Chemistry, Surfaces, Coatings and Films, Polymers and Plastics

URI

https://hdl.handle.net/11511/47299

Journal

JOURNAL OF APPLIED POLYMER SCIENCE

DOI

https://doi.org/10.1002/app.33860

Collections

Department of Metallurgical and Materials Engineering, Article

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Citation Formats

I. Oral, H. Guzel, G. Ahmetli, and C. H. Gür, “Determining the Elastic Properties of Modified Polystyrenes by Sound Velocity Measurements,” JOURNAL OF APPLIED POLYMER SCIENCE, pp. 3425–3432, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47299.