Journal of Organic Chemistry p. 2674 - 2677 (1988)
Update date:2022-08-16
Topics:
Mitra, Smarajit
Overberger, C.G.
The synthesis of model compounds 5 and 6 for the homopolymers of vinyl and isopropenydioxazol-2-ones is described.These compounds are hydrolyzed to hydroxamic acids which can be estimated colorimetrically by complexation with Fe3+.The hydrolitic rates have been determined and the thermolysis rates were followed by measuring undecomposed dioxazolones by the colorimetric method.The isopropyldioxazolone was 100 times faster in thermal decomposition in the bulk than the tert-butyl-substituted one and this difference is reduced in presence of polar solvents.The resulrsexplain the previously observed differences in the thermal stability of the two polymers.
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