Poly(methylthiomethyl methacrylate) (PMTMA) is miscible with poly( p -vinylphenol) (PVPh) as shown by the existence of a single glass transition temperature in each blend. Fourier transform infrared spectroscopy, solid-state 13 C nuclear magnetic resonance spectroscopy, and X-ray photoelectron spectroscopy show that miscibility arises mainly from interactions between the hydroxyl groups of PVPh and the thioether sulfur atoms of PMTMA. Measurements of proton spin−lattice relaxation time in the rotating frame, T 1 ρ (H), reveal that each of the blends has one composition-dependent T 1 ρ (H), indicating that the blends are homogeneous on a scale of about 3 nm.
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Yi et al. (2001) studied this question.
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