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http://dx.doi.org/10.5012/jkcs.2014.58.3.251

Thermodynamic Properties and Self Diffusions from Rheological Parameters of Eyring-Halsey Model  

Kim, Nam Jeong (Department of Chemistry, Sahmyook University)
Publication Information
Abstract
The stress relaxation of poly(methyl acrylate)-poly(acrylonitrile) copolymer samples were carried out in air and distilled water at various temperatures using the tensile tester with the solvent chamber. The rheological parameters were obtained by applying the experimental stress relaxation curves to the theoretical equation of the Eyring-Halsey non-Newtonian model. The self diffusion, hole volume, viscosities, and thermodynamic parameters of copolymer samples were calculated from rheological parameters and crystallite size in order to study of flow segments in amorphous region. It was observed that the rheological parameters of these copolymer samples are directly related to the self diffusion, hole volume, viscosities, and thermodynamic parameters of flow segments.
Keywords
Self diffusion; Hole volume; Thermodynamic parameters; Stress relaxation; Rheological parameters;
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