Esterification of cellulose with carbonic carboxylic anhydrides
Abstract
Abstract -O-CO-O-CO-A'' WHEREIN A'' IS POLYFLUOROALKYL OR POLYFLUOROALKOXYALKYL, R" IS A LOWER ALKYLENE GROUP, AND G'' IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND A''-CO-O-CO-O-R"-G'' WHEREBY A MONOVALENT OR DIVALENT CARBON ACYL GROUP IS BONDED TO THE CELLULOSE BY REPLACING ACTIVE HYDROGEN, WITH CONSEQUENT ESTER FORMATION, AND THERE IS RELEASED AS BY-PRODUCTS AN ALCOHOL OR GLYCOL AND CARBON DIOXIDE. IN ADDITION, NOVEL COMPOUNDS OF THE CARBONIC CARBOXYLIC ANHYDRIDE CLASS WHICH ARE USEFUL IN THE FORMATION OF CELLULOSE ESTERS ACCORDING TO THE ABOVE-MENTIONED PROCESS, AND WHICH ARE CHARACTERIZED BY THE FORMULA -CO-O-CO-O- A PROCESS FOR ESTERIFICATION OF CELLULOSE WHEREIN A CELLULOSIC MATERIAL IS REACTED UNDER MILD CONDITIONS AND IN THE ABSENCE OF A CATALYST WITH MIXED CARBONIC CARBOXYLIC ANHYDRIDES HAVING THE CHARACTERISTIC GROUP
Inventors
- 👤 Giuliana C Tesoro
Bibliographic Details
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