Abstract
The reactivity of hydroxyl groups in different tactic sequences on poly(vinyl alcohol) was studied in the Michael type addition reaction with vinyl sulfoxides and vinyl sulfones. By the 13C NMR anaysis on the methine carbon signal in unreacted vinyl alcohol units for the obtained sulfinylethyl and sulfonylethyl poly(vinyl alcohol)s, it was concluded that the reactivity order of hydroxyl groups in different tractic sequences was isotactic>heterotactic>syndiotactic.
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