Abstract
Static and dynamic light scattering was measured for methylcyclohexane solutions of polystyrene with molecular weights 1.75×104, 5.00×104, 1.10×105, 2.33×105, 4.22×105, and 1.26×106 in the temperature region from Θ to the critical point. It was found that the average line width Γ for higher molecular weights deviated from the prediction of the mode–mode coupling theory, showing a large background whose temperature dependence apparently had the same trend as that of small molecule systems. The decay of the correlation function was more non-exponential for higher molecular weight. A histogram analysis showed that the line width distribution was bimodal for higher molecular weights of 4.22×105 and 1.26×106.
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Takahashi, M., Nose, T. Dynamical Properties of Polymer Solutions from Θ to Critical Regions as Measured by Quasi–Elastic Light Scattering: Polystyrene–Methylcyclohexane System. Polym J 16, 771–778 (1984). https://doi.org/10.1295/polymj.16.771
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DOI: https://doi.org/10.1295/polymj.16.771