Abstract
The ring-opening polymerization of the potassium salt of 4,4-dimethyl-1,2-thiazetidin-3-one 1,1-dioxide (DMTD) proceeded readily in polar aprotic solvents at room temperature in the presence of some initiators, leading to a poly(acylsulfonamide) with high molecular weight. The monomer DMTD also polymerized to the polymer in triethylamine or pyridine under similar conditions, after the corresponding organic quaternary salts of DMTD were formed in situ. The resulting poly(acylsulfonamide) was soluble in basic solvents like DMAC, and began to decompose at around 200°C, as determined by thermogravimetry.
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Imai, Y., Ueda, M. & Okuyama, K. Anionic Ring-Opening Polymerization of 4,4-Dimethyl-1,2-thiazetidin-3-one 1,1-Dioxide. Polym J 11, 613–617 (1979). https://doi.org/10.1295/polymj.11.613
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DOI: https://doi.org/10.1295/polymj.11.613