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ABSTRACT Early stages of phase separation in liquid mixtures of polystyrene (PS) and poly(methylphenylsiloxane) were studied by light scattering. Measurements were made at four
concentrations less than 60 wt% PS and at several temperatures in the two-phase region. The time (_t_) dependence of maximum intensity of scattered light _I_m and the corresponding wave
number _k_m did not obey the Cahn theory but could be represented by power-laws: _I_m∝_t_θ and _k_m∝_t_φ with θ=0.69 (±0.17) and φ=−0.29 (±0.05). These values of θ and φ agree well with
those predicted by recent theories of Langer _et al._ and Binder _et al._ for spinodal decomposition, and also with the experimental values for binary mixtures of small molecules. It was
concluded that there is no essential difference in the mechanism of phase separation between mixtures of small molecules and polymer blends. SIMILAR CONTENT BEING VIEWED BY OTHERS A COMBINED
STUDY ON INTERMOLECULAR INTERACTIONS BETWEEN POLYSTYRENE AND _D_-LIMONENE UTILIZING LIGHT-SCATTERING EXPERIMENTS AND COMPUTATIONAL SIMULATIONS Article 14 November 2024 CONFIGURATIONAL HEAT
CAPACITY OF VARIOUS POLYMERS ABOVE THE GLASS TRANSITION TEMPERATURE Article 25 November 2021 KINETICS AND MORPHOLOGIES OF SYNDIOTACTIC POLYSTYRENE CRYSTALLIZED ISOTHERMALLY OVER A WIDE
TEMPERATURE RANGE Article 28 March 2023 ARTICLE PDF REFERENCES * E. D. Siggia, _Phys. Rev._, A20, 595 (1979). * J. Zarzycki, _Disc. Faraday Soc._, 50, 122 (1971). * I. M. Lifshitz and V. V.
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AFFILIATIONS * Department of Polymer Chemistry, Tokyo Institute of Technology, Shuichi Nojima, Katsuaki Tsutsumi & Takuhei Nose Authors * Shuichi Nojima View author publications You can
also search for this author inPubMed Google Scholar * Katsuaki Tsutsumi View author publications You can also search for this author inPubMed Google Scholar * Takuhei Nose View author
publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Nojima, S., Tsutsumi, K. &
Nose, T. Phase Separation Process in Polymer Systems. I. Light Scattering Studies on a Polystyrene and Poly(methylphenylsiloxane) Mixture. _Polym J_ 14, 225–232 (1982).
https://doi.org/10.1295/polymj.14.225 Download citation * Issue Date: 01 March 1982 * DOI: https://doi.org/10.1295/polymj.14.225 SHARE THIS ARTICLE Anyone you share the following link with
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content-sharing initiative KEYWORDS * Phase Separation * Polymer Blend * Light Scattering * Spinodal Decomposition * Cahn’s Theory