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Organic Esters of Cellulose: New Perspectives for Old Polymers

Polysaccharides I, 2005, p.103-149 [Peer Reviewed Journal]

ISSN: 0065-3195 ;ISBN: 3540261125 ;ISBN: 9783540261124 ;EISSN: 1436-5030 ;EISBN: 3540315837 ;EISBN: 9783540315834 ;DOI: 10.1007/b136818

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  • Title:
    Organic Esters of Cellulose: New Perspectives for Old Polymers
  • Author: El Seoud, Omar A. ; Heinze, Thomas
  • Subjects: Cellulose esters, properties of ; Cellulose, derivatization of ; Cellulose, esters of ; Cellulose, homogeneous reaction ; Green chemistry, application to cellulose ; Green chemistry, principles of
  • Is Part Of: Polysaccharides I, 2005, p.103-149
  • Description: The impetus for the increased interest in the synthesis of functionalized natural polymers, in particular esters of cellulose, is their easy biodegradability and conformity to the principles of green chemistry. This review is concerned with the preparation of cellulose esters under homogeneous reaction conditions, including products that cannot be obtained by the (industrial) heterogeneous reaction. This scheme, which leads to products of reproducible properties, includes three stages: Cellulose activation (by solvent exchange or heat), dissolution (in derivatizing or non-derivatizing solvent systems), and functionalization of the solubilized polymer. Dissolution in non-derivatizing solvent systems, in particular LiCl/DMAc; (C4H9)4NF ·hydrate/DMSO and ionic liquids (green solvents) is due to the disruption of the H-bonding within the polymer structure. Dissolution in derivatizing solvents, e.g., acid-anhydrides leads to functionalization of cellulose, and may be fruitfully employed in controlling the regioselectivity of polymer substitution. Optimization of each of the above-mentioned reaction stages is a pre-requisite in order to meet the requirements of green chemistry.
  • Publisher: Berlin, Heidelberg: Springer Berlin Heidelberg
  • Language: English
  • Identifier: ISSN: 0065-3195
    ISBN: 3540261125
    ISBN: 9783540261124
    EISSN: 1436-5030
    EISBN: 3540315837
    EISBN: 9783540315834
    DOI: 10.1007/b136818
  • Source: Alma/SFX Local Collection
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