Abstract
Miscibility and phase-separation of bisphenol A polycarbonate/poly(methyl methacrylate) (PC/PMMA) blend are studied by examining the 1H spin-lattice relaxation behavior. The observation is done indirectly through high-resolution solid-state 13C resonance. The blend is found to be homogeneous on a scale of 200–300 Å, but heterogeneous on a scale of 20–30 Å. The phase diagram is obtained by analyzing the recovery curve of 1H relaxation of the blends heated at various temperatures for 30 min. The kinetics of the phase-separation were also observed, and found to be governed by spinodal decomposition.
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Asano, A., Takegoshi, K. & Hikichi, K. Solid-State NMR Study of Miscibility and Phase-Separation of Polymer Blend: Polycarbonate/Poly(methyl methacrylate). Polym J 24, 555–562 (1992). https://doi.org/10.1295/polymj.24.555
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DOI: https://doi.org/10.1295/polymj.24.555
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