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Physicochemical modifications of partially esterified cellulose evidenced by inverse gas chromatography
Author(s) -
Gauthier Helene,
Coupas AnneCecile,
Villemagne Pascal,
Gauthier Robert
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19980912)69:11<2195::aid-app11>3.0.co;2-z
Subject(s) - inverse gas chromatography , cellulose , thermogravimetric analysis , swelling , gas chromatography , chemistry , cellulosic ethanol , alkyl , polymer chemistry , carbon fibers , chemical engineering , organic chemistry , materials science , chromatography , composite material , composite number , engineering
Partial esterification of cellulose using acyl chlorides having 5 and 16 carbon atoms was performed in a swelling medium to produce cellulosic esters with two different degrees of substitution (DS = 0.15 and 0.45). The effects of this treatment on the surface energy, on the water uptake, and on the acido‐basic character of the cellulose were studied by inverse gas chromatography and thermogravimetric analysis. The attaching of alkyl chains to the surface of cellulose reduces its acidic character and its hydrophilicity and the DS required for such an effect depends on the chain length. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 69: 2195–2203, 1998