Abstract
Language | English |
---|---|
Pages | 1-14 |
Number of pages | 14 |
Journal | Cellulose |
DOIs | |
Publication status | Published - 2018 |
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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
}
TY - JOUR
T1 - Carboxymethylcellulose from bleached organosolv fibers of Eucalyptus nitens: synthesis and physicochemical characterization
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
KW - Cellulose
KW - Eucalyptus nitens
KW - Organosolv
KW - Alkalinity
KW - Bleaching
KW - Chlorine compounds
KW - Cleaning
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
U2 - 10.1007/s10570-018-1766-7
DO - 10.1007/s10570-018-1766-7
M3 - Article
SP - 1
EP - 14
JO - Cellulose
T2 - Cellulose
JF - Cellulose
SN - 0969-0239
ER -