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Effective esterification of carboxymethyl cellulose in a new non-aqueous swelling system

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Summary

Carboxymethyl cellulose (CMC) was treated in a dipolar-aprotic solvent like N,N-dimethylacetamide, or dimethylsulfoxide (DMSO) with p-toluenesulfonic acid yielding a high reactive gel-suspension of the polymer. This mixture allows a direct esterification of free hydroxyl groups of CMC as exemplified by acylation with carbonic acid chlorides, or anhydrides, and with isocyanates as well as by sulphation, phosphating and silylation. The products characterized by elemental analysis and FTIR spectroscopy possess a high degree of functionalization.

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Authors and Affiliations

  1. Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University, Humboldtstrasse 10, D-07743, Jena, Germany

    S. Vogt, D. Klemm & T. Heinze

Authors
  1. S. Vogt
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  2. D. Klemm
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  3. T. Heinze
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Vogt, S., Klemm, D. & Heinze, T. Effective esterification of carboxymethyl cellulose in a new non-aqueous swelling system. Polymer Bulletin 36, 549–555 (1996). https://doi.org/10.1007/BF00342445

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  • DOI: https://doi.org/10.1007/BF00342445

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