Abstract
Poly(methyl methacrylate)s (PMMAs) with five different tacticities were prepared by radical or anionic polymerization and used as stationary phases (packing materials) for high-performance liquid chromatography (HPLC). From retention times of small molecules on these stationary phases, tacticity effect on interactions between PMMA and solutes was evaluated. Aromatic hydrocarbons were chromatographed by using polar eluents, and polar benzene derivatives by nonpolar eluents. The retention times on the syndiotactic PMMA phase were much longer than those on the isotactic PMMA phase. The infrared spectra of the PMMAs and HPLC data indicated that highly isotactic PMMA changes its conformation depending on the polarity of eluents. Poly(ethyl methacrylate)s and poly(benzyl methacrylate)s with different tacticities were also used as stationary phases.
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Okamoto, Y., Yanagida, M. & Hatada, K. High-Performance Liquid Chromatography Using Stereoregular Poly(methyl methacrylate)s as Stationary Phases. Polym J 21, 795–801 (1989). https://doi.org/10.1295/polymj.21.795
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DOI: https://doi.org/10.1295/polymj.21.795
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