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Poly (vinyl alcohol) (PVAL) partially functionalized with monosuccinate groups was obtained by reaction of PVAL with succinic anhydride using triethylamine as catalyst and N-Methyl-2-pyrrolidone as solvent. The structure of the resulting polymers was determined by 1 H and 13 C nuclear magnetic resonance (n.m.r.) spectroscopy. The influence of the type of catalyst, solvent composition...
The direct esterification reaction of dextran with α-naphthylacetic acid (a model bioactive carboxylic acid) is studied in homogeneous phase using pyridine-sulfonyl chloride as catalyst. The structure of the resulting adducts was determined by means of infra-red, 1 H nuclear magnetic resonance (n.m.r.) and 13 C n.m.r. spectroscopy. The influence of the pyridine concentration,...
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