Cyclic ureas as solvents for esterificat
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M. D. Fernández; M. J. Fernández
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Article
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2007
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John Wiley and Sons
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English
⚖ 181 KB
👁 1 views
## Abstract Poly(vinyl alcohol) (PVAL) and vinyl acetate‐vinyl alcohol copolymers (VAVAL) were esterified with 3,5‐dinitrobenzoyl chloride using the cycled urea __N__,__N__′‐dimethylpropyleneurea (1,3‐dimethyl‐3,4,5,6‐tetrahydro‐2(1H)‐pyrimidinone) (DMPU) as the solvent. Vinyl alcohol‐vinyl‐3,5‐din