, Volume 25, Issue 5, pp 2901–2914 | Cite as

Carboxymethylcellulose from bleached organosolv fibers of Eucalyptus nitens: synthesis and physicochemical characterization

  • Mauricio Yáñez-S
  • Betty Matsuhiro
  • Santiago Maldonado
  • Raúl González
  • Jorge Luengo
  • Omar Uyarte
  • Daniel Serafine
  • Sergio Moya
  • Julio Romero
  • Rodrigo Torres
  • Marcelo J. Kogan
Original Paper


The objective of the present study was to synthesize sodium carboxymethylcellulose from Eucalyptus nitens cellulose. The cellulose extraction was carried out in three stages. In the first stage, E. nitens wood was fractionated using an organosolv pretreatment (methanol–water 50% v/v, 45 min at 200 °C) followed by an alkaline extraction (NaOH, 1.5 M). Finally, the organosolv pulp was bleached using NaClO2 (1.3% w/v, pH 3.8). The bleached cellulose obtained was converted to sodium carboxymethylcellulose (NaCMC) by an etherification reaction in isopropanol medium. NaCMC structure, morphology and properties were researched using FTIR, 1H and 13C NMR spectroscopy, scanning electron microscopy, and thermogravimetric analysis. The results indicate substitution mostly occurred mostly at the C-6 position of 1 → 4 β-d-glucopyranosyl residues of cellulose chains.


Eucalyptus nitens Organosolv Cellulose Carboxymethylcellulose 



The authors gratefully thank FONDECYT for financial support through Inserción de Capital Humano Avanzado en la academia Project No. 79100010, DICYT Asociativo (USACH) Project No. 021541YS, Proyecto DICYT 021642MD and Proyecto Basal Usach USA1398_MS002228.


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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  • Mauricio Yáñez-S
    • 1
  • Betty Matsuhiro
    • 1
  • Santiago Maldonado
    • 1
  • Raúl González
    • 2
  • Jorge Luengo
    • 2
  • Omar Uyarte
    • 2
  • Daniel Serafine
    • 3
  • Sergio Moya
    • 4
  • Julio Romero
    • 5
  • Rodrigo Torres
    • 6
  • Marcelo J. Kogan
    • 6
  1. 1.Laboratorio de Hidratos de Carbono, Departamento de Ciencias del AmbienteUniversidad de Santiago de ChileSantiagoChile
  2. 2.Centro I+DCMPC Celulosa S.ASantiagoChile
  3. 3.Departamento de Física, Facultad de CienciaUniversidad de Santiago de ChileSantiagoChile
  4. 4.Departamento de Química de los Materiales, Facultad de Química y BiologíaUniversidad de Santiago de ChileSantiagoChile
  5. 5.Laboratorio de Procesos de Separación por Membranas (LabProSeM), Departamento de Ingeniería QuímicaUniversidad de Santiago de ChileSantiagoChile
  6. 6.Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Advanced Center for Chronic Diseases (ACCDiS)Universidad de ChileSantiagoChile

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