Abstract
A new class of polyenamines with pendant hydroxyl groups was synthesized by the ring-opening polyaddition of 5,5′-oxalylbisi(3,4-dihydro-2H-pyran) with diamines through vinyl-ogous nucleophilic substitution. Solution polymerization carried out in alcoholic solvents such as m-cresol at room temperature afforded polymers having inherent viscosities of 0.1–0.27 in quantitative yields. The hydroxyl-containing polyenamines were soluble in a limited number of solvents and had low softening temperatures, below 200°C.
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Ueda, M., Funayama, M. & Imai, Y. Synthesis of Polyenamines with Pendant Hydroxyl Groups by Ring-Opening Polyaddition of 5,5′-Oxalylbis(3,4-dihydro-2H-pyran) with Diamines. Polym J 11, 491–495 (1979). https://doi.org/10.1295/polymj.11.491
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DOI: https://doi.org/10.1295/polymj.11.491