Abstract
Anionic polymerization of 2-vinylpyridine was carried out in tetrahydrofuran at −78-°C with four kinds of initiators, i.e., n-butyllithium, tritylsodium, cumylpotassium and cumylcesium. It was confirmed that the polymerizations with all these initiators proceeded on a living mechanism and the polymers obtained had narrow molecular weight distributions. The triad isotactic contents of the polymers prepared were almost identical, independently of counter ions. The intrinsic viscosity-molecular weight relationships were determined in two good solvents and in a θ-solvent From those relationships, it was concluded that poly(2-vinylpyridine) has almost the same chain flexibility as ordinary vinyl polymers.
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Matsushita, Y., Shimizu, K., Nakao, Y. et al. Preparation and Characterization of Poly(2-vinylpyridine) with Narrow Molecular Weight Distributions. Polym J 18, 361–366 (1986). https://doi.org/10.1295/polymj.18.361
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DOI: https://doi.org/10.1295/polymj.18.361