Phase Separation Process in Polymer Systems. II. Microscopic Studies on a Polystyrene and Diisodecyl Phthalate Mixture (original) (raw)

Polymer Journal volume 14, pages 289–294 (1982)Cite this article

Abstract

Late stages of phase separation in liquid mixtures of polystyrene (PS) and diisodecyl phthalate were investigated by microscopic observation. Droplet structures were observed in the matrix. Average droplet diameters d for mixtures of 5.7 and 16.6 wt% PS varied with the period of phase separation t according to a power-law, _d_∝_t_φ, with φ=0.30 (±0.09) being independent of quench depth. This value of φ agreed well with 1/3, theoretically predicted on the basis of the coalescence mechanism and the Ostwald Ripening mechanism. For a blend of PS and poly(methylphenylsiloxane), we investigated the relation between the average droplet diameter and the wave length at the maximum intensity of scattered light observed in the early stage.

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  1. Department of Polymer Chemistry, Tokyo Institute of Technology,
    Shuichi Nojima, Kenji Shiroshita & Takuhei Nose

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  1. Shuichi Nojima
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  2. Kenji Shiroshita
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  3. Takuhei Nose
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Nojima, S., Shiroshita, K. & Nose, T. Phase Separation Process in Polymer Systems. II. Microscopic Studies on a Polystyrene and Diisodecyl Phthalate Mixture.Polym J 14, 289–294 (1982). https://doi.org/10.1295/polymj.14.289

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