dc.contributor.author |
Tywabi, Z
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|
dc.contributor.author |
Deenadayalu, N
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|
dc.contributor.author |
Sithole, Bishop B
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dc.date.accessioned |
2018-01-23T10:05:25Z |
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dc.date.available |
2018-01-23T10:05:25Z |
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dc.date.issued |
2017-09 |
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dc.identifier.citation |
Tywabi, Z., Deenadayalu, N. and Sithole, B.B. 2017. Study of Cellulose-Rich Materials Recovered After Dissolution of Sulphite Pulp from South African Eucalyptus Wood in [C2mim][OAc]/co-Solvent Mixtures. Journal of Scientific & Industrial Research, vol. 76: 540-544 |
en_US |
dc.identifier.issn |
0022-4456 |
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dc.identifier.uri |
http://nopr.niscair.res.in/handle/123456789/42698
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|
dc.identifier.uri |
http://nopr.niscair.res.in/bitstream/123456789/42698/1/JSIR%2076%289%29%20540-544.pdf
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|
dc.identifier.uri |
http://hdl.handle.net/10204/9982
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dc.description |
Article published in Journal of Scientific & Industrial Research, vol. 76: 540-544 |
en_US |
dc.description.abstract |
Biomass processing in ionic liquids (ILs) is a promising technology but involves the simultaneous optimization of many variables in parallel. Here we investigated how dissolution of dissolving wood pulp in IL molecular co-solvents affects the structure of lignocellulosic materials. Mixtures of the IL 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]) and dimethylsulfoxide (DMSO) or dimethylformamide (DMF) were used to dissolve South African eucalyptus raw (unbleached) and final (bleached) pulp and regenerated cellulose was obtained by addition of a 1:1 (v/v) water/acetone mixture. The regenerated cellulose materials were characterized by SEM, FTIR, TGA, and PXRD. The results showed that addition of co-solventsled to increased dissolution yields, presumably due to reduction of the IL viscosity facilitating faster dissolution of the wood materials. The selection of the co-solvent for the mixtures did not have a significant influence on the recovered materials, whose characteristics such as crystallinity and thermal stability depended only on the source material. Co-solvents did affect the purity of the recovered material, with DMF appearing to lead to greater contamination. Co-solvent addition is a viable approach for dissolution of dissolving wood pulp without affecting the quality of the recovered material providing removal and recovery of the spent solvents can be optimized. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
NISCAIR-CSIR, India |
en_US |
dc.relation.ispartofseries |
Worklist;20027 |
|
dc.subject |
Cellulose |
en_US |
dc.subject |
Dissolving Wood Pulp |
en_US |
dc.subject |
Co-Solvents |
en_US |
dc.subject |
Ionic Liquids |
en_US |
dc.title |
Study of Cellulose-Rich Materials Recovered After Dissolution of Sulphite Pulp from South African Eucalyptus Wood in [C2mim][OAc]/co-Solvent Mixtures |
en_US |
dc.type |
Article |
en_US |
dc.identifier.apacitation |
Tywabi, Z., Deenadayalu, N., & Sithole, B. B. (2017). Study of Cellulose-Rich Materials Recovered After Dissolution of Sulphite Pulp from South African Eucalyptus Wood in [C2mim][OAc]/co-Solvent Mixtures. http://hdl.handle.net/10204/9982 |
en_ZA |
dc.identifier.chicagocitation |
Tywabi, Z, N Deenadayalu, and Bishop B Sithole "Study of Cellulose-Rich Materials Recovered After Dissolution of Sulphite Pulp from South African Eucalyptus Wood in [C2mim][OAc]/co-Solvent Mixtures." (2017) http://hdl.handle.net/10204/9982 |
en_ZA |
dc.identifier.vancouvercitation |
Tywabi Z, Deenadayalu N, Sithole BB. Study of Cellulose-Rich Materials Recovered After Dissolution of Sulphite Pulp from South African Eucalyptus Wood in [C2mim][OAc]/co-Solvent Mixtures. 2017; http://hdl.handle.net/10204/9982. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Tywabi, Z
AU - Deenadayalu, N
AU - Sithole, Bishop B
AB - Biomass processing in ionic liquids (ILs) is a promising technology but involves the simultaneous optimization of many variables in parallel. Here we investigated how dissolution of dissolving wood pulp in IL molecular co-solvents affects the structure of lignocellulosic materials. Mixtures of the IL 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]) and dimethylsulfoxide (DMSO) or dimethylformamide (DMF) were used to dissolve South African eucalyptus raw (unbleached) and final (bleached) pulp and regenerated cellulose was obtained by addition of a 1:1 (v/v) water/acetone mixture. The regenerated cellulose materials were characterized by SEM, FTIR, TGA, and PXRD. The results showed that addition of co-solventsled to increased dissolution yields, presumably due to reduction of the IL viscosity facilitating faster dissolution of the wood materials. The selection of the co-solvent for the mixtures did not have a significant influence on the recovered materials, whose characteristics such as crystallinity and thermal stability depended only on the source material. Co-solvents did affect the purity of the recovered material, with DMF appearing to lead to greater contamination. Co-solvent addition is a viable approach for dissolution of dissolving wood pulp without affecting the quality of the recovered material providing removal and recovery of the spent solvents can be optimized.
DA - 2017-09
DB - ResearchSpace
DP - CSIR
KW - Cellulose
KW - Dissolving Wood Pulp
KW - Co-Solvents
KW - Ionic Liquids
LK - https://researchspace.csir.co.za
PY - 2017
SM - 0022-4456
T1 - Study of Cellulose-Rich Materials Recovered After Dissolution of Sulphite Pulp from South African Eucalyptus Wood in [C2mim][OAc]/co-Solvent Mixtures
TI - Study of Cellulose-Rich Materials Recovered After Dissolution of Sulphite Pulp from South African Eucalyptus Wood in [C2mim][OAc]/co-Solvent Mixtures
UR - http://hdl.handle.net/10204/9982
ER -
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en_ZA |