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

M. Yáñez-S, B. Matsuhiro, S. Maldonado, R. González, J. Luengo, O. Uyarte, D. Serafine, S. Moya, J. Romero, R. Torres, M.J. Kogan

Research output: Contribution to journal › Article

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Abstract

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. © 2018 Springer Science+Business Media B.V., part of Springer Nature
LanguageEnglish
Pages1-14
Number of pages14
JournalCellulose
DOIs
Publication statusPublished - 2018

Fingerprint

Carboxymethylcellulose Sodium
Cellulose
Fibers
Sodium
Bleached pulp
2-Propanol
Nuclear magnetic resonance spectroscopy
Methanol
Thermogravimetric analysis
Wood
Substitution reactions
Scanning electron microscopy
Water

Keywords

  • Carboxymethylcellulose
  • Cellulose
  • Eucalyptus nitens
  • Organosolv
  • Alkalinity
  • Bleaching
  • Chlorine compounds
  • Cleaning
  • Extraction
  • Fourier transform infrared spectroscopy
  • Nuclear magnetic resonance spectroscopy
  • Scanning electron microscopy
  • Sodium
  • Sodium hydroxide
  • Carboxy methylcellulose
  • Cellulose extraction
  • Etherification reactions
  • Organosolv pretreatment
  • Physico-chemical characterization
  • Sodium carboxymethylcellulose
  • Thermogravimetric analysis

Cite this

Carboxymethylcellulose from bleached organosolv fibers of Eucalyptus nitens: synthesis and physicochemical characterization. / Yáñez-S, M.; Matsuhiro, B.; Maldonado, S.; González, R.; Luengo, J.; Uyarte, O.; Serafine, D.; Moya, S.; Romero, J.; Torres, R.; Kogan, M.J.

In: Cellulose, 2018, p. 1-14.

Research output: Contribution to journal › Article

Yáñez-S, M, Matsuhiro, B, Maldonado, S, González, R, Luengo, J, Uyarte, O, Serafine, D, Moya, S, Romero, J, Torres, R & Kogan, MJ 2018, 'Carboxymethylcellulose from bleached organosolv fibers of Eucalyptus nitens: synthesis and physicochemical characterization', Cellulose, pp. 1-14. https://doi.org/10.1007/s10570-018-1766-7
Yáñez-S M, Matsuhiro B, Maldonado S, González R, Luengo J, Uyarte O et al. Carboxymethylcellulose from bleached organosolv fibers of Eucalyptus nitens: synthesis and physicochemical characterization. Cellulose. 2018;1-14. https://doi.org/10.1007/s10570-018-1766-7
Yáñez-S, M. ; Matsuhiro, B. ; Maldonado, S. ; González, R. ; Luengo, J. ; Uyarte, O. ; Serafine, D. ; Moya, S. ; Romero, J. ; Torres, R. ; Kogan, M.J. / Carboxymethylcellulose from bleached organosolv fibers of Eucalyptus nitens: synthesis and physicochemical characterization. In: Cellulose. 2018 ; pp. 1-14.
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abstract = "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. {\circledC} 2018 Springer Science+Business Media B.V., part of Springer Nature",
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AU - Yáñez-S, M.

AU - Matsuhiro, B.

AU - Maldonado, S.

AU - González, R.

AU - Luengo, J.

AU - Uyarte, O.

AU - Serafine, D.

AU - Moya, S.

AU - Romero, J.

AU - Torres, R.

AU - Kogan, M.J.

N1 - Export Date: 10 April 2018 Article in Press CODEN: CELLE Correspondence Address: Yáñez-S, M.; Laboratorio de Hidratos de Carbono, Departamento de Ciencias del Ambiente, Universidad de Santiago de Chile, Av. L. B. O’Higgins 3363, Chile; email: mauricio.yanez@usach.cl

PY - 2018

Y1 - 2018

N2 - 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. © 2018 Springer Science+Business Media B.V., part of Springer Nature

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

KW - Carboxymethylcellulose

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KW - Eucalyptus nitens

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KW - Alkalinity

KW - Bleaching

KW - Chlorine compounds

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KW - Extraction

KW - Fourier transform infrared spectroscopy

KW - Nuclear magnetic resonance spectroscopy

KW - Scanning electron microscopy

KW - Sodium

KW - Sodium hydroxide

KW - Carboxy methylcellulose

KW - Cellulose extraction

KW - Etherification reactions

KW - Organosolv pretreatment

KW - Physico-chemical characterization

KW - Sodium carboxymethylcellulose

KW - Thermogravimetric analysis

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DO - 10.1007/s10570-018-1766-7

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JF - Cellulose

SN - 0969-0239

ER -

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