Homogeneous esterification of cellulose and characterization of cellulose esters | Abstract

Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

ISSN: 0975-413X
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Homogeneous esterification of cellulose and characterization of cellulose esters

Author(s): Kongala Sirisha devi,V. K. Mathur, S. K. Nayak, S. Mohanty, Manish Kumar

The present work focus on esterification of cellulose using lithium chloride–N,Ndimethylacetamide (LiCl–DMAc) solvent system with acetic anhydride and maleic anhydride system using pyridine as catalyst. Reaction temperature varied from 25 to 70 0C and the time varied from 2 to 24 hours. Small degradation in cellulose chain occurred at a temperature 70 0C .The esters prepared from cellulose in LiCl/DMAc solvent system were characterized by molecular weight determination and IR studies & viscometrically .Degree of substitution of the ester was found by calculating the amount of anhydride consumed.


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