Abstract
In order to obtain a cationic poly electrolyte with a narrow molecular weight distribution, the anionic polymerization of 4-vinylbenzyldimethylamine was studied. It was concluded that, if the polymerization of the monomer is carried out in benzene with s-butyllithium at low monomer concentrations (ca. 3%), the polymerization proceeds at a first-order reaction rate and the resulting poly(4-vinylbenzyldimethylamine)s each have narrow molecular weight distributions. Moreover, it was found that the living-ends in this polymerization system are ion-pairs, and are not associated in the benzene solution. Poly(4-vinylbenzyldimethylamine) can be converted to a salt of the strong base, poly(4-vinylbenzyltrimethylammonium iodide) by quaternization with methyl iodide. No chain degradation is observed.
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Higo, Y., Chosi, H., Fujimoto, T. et al. Preparation and Characterization of a Poly(strong base) with Narrow Molecular Weight Distribution; Poly(4-vinylbenzyltrimethylammonium chloride). Polym J 12, 729–734 (1980). https://doi.org/10.1295/polymj.12.729
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DOI: https://doi.org/10.1295/polymj.12.729