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Reactions of some phosphorus compounds with cellulose dissolved in aqueous alkaline solution
Author(s) -
Petreuş Oana,
Bubulac T.,
Petreuş I.,
Cazacu Georgeta
Publication year - 2003
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/app.12532
Subject(s) - cellulose , microcrystalline cellulose , aqueous solution , dissolution , degree of polymerization , chemistry , polymerization , phosphoric acid , polymer chemistry , regenerated cellulose , phosphorus , organic chemistry , materials science , chemical engineering , polymer , engineering
Dissolution of cellulose in aqueous hydroxide offers a procedure for regeneration of cotton or wood celluloses. The aqueous NaOH system for dissolving cellulose seems to have considerable potential for fiber production and also as a medium for preparing cellulose derivatives. Reactions with phosphoric and phosphorous acids, phenyl‐ and phenoxy phosphonic dichlorides, and an amido phosphite oligomer on aqueous dissolved cellulose are described. The resulting products are characterized by analytical and spectral methods (infrared and X‐ray diffraction) to determine phosphorus and nitrogen content, substitution degree, and polymerization degree. Particular attention was given to the effects produced by chemical modification on the crystalline pattern of microcrystalline cellulose. Some remarks are also made about the thermooxidative behavior of phosphorylated cellulose. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 327–333, 2003