Influence of the quality of microcrystalline cellulose on the outcome of TEMPO-mediated oxidation

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Influence of the quality of microcrystalline cellulose on the outcome of TEMPO-mediated oxidation. / Salminen, Reeta; Reza, Mehedi; Vanhatalo, Kari; Kontturi, Eero.

In: Cellulose, Vol. 24, No. 12, 01.12.2017, p. 5697-5704.

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Salminen, Reeta ; Reza, Mehedi ; Vanhatalo, Kari ; Kontturi, Eero. / Influence of the quality of microcrystalline cellulose on the outcome of TEMPO-mediated oxidation. In: Cellulose. 2017 ; Vol. 24, No. 12. pp. 5697-5704.

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@article{932339abafee40328ffd12e870a67ed7,
title = "Influence of the quality of microcrystalline cellulose on the outcome of TEMPO-mediated oxidation",
abstract = "In an attempt to prepare cellulose nanocrystals (CNCs) by TEMPO-mediated oxidation of microcrystalline cellulose (MCC), a new species of MCC called AaltoCell was placed under scrutiny. Unlike Avicel, AaltoCell is a never-dried species, still containing ca. 10{\%} xylan in its structure. According to thermoporosimetry, the pore size distributions of AaltoCell and Avicel did not differ from each other but after TEMPO-oxidation, AaltoCell exhibited a far lower degree of porosity, hypothetically ascribed to its hemicellulose content. Surprisingly, the charge density imposed by TEMPO-oxidation did not vary between AaltoCell and Avicel despite the different microfibril widths observed, respectively. After TEMPO-oxidation and centrifugation the fine fraction share, indicating the CNC yield, was not more than 11{\%} for AaltoCell, compared to 20{\%} from Avicel.",
keywords = "Cellulose nanocrystals, Cellulose oxidation, Microcrystalline cellulose, Porosity, Thermoporosimetry",
author = "Reeta Salminen and Mehedi Reza and Kari Vanhatalo and Eero Kontturi",
year = "2017",
month = "12",
day = "1",
doi = "10.1007/s10570-017-1531-3",
language = "English",
volume = "24",
pages = "5697--5704",
journal = "Cellulose",
issn = "0969-0239",
number = "12",

}

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TY - JOUR

T1 - Influence of the quality of microcrystalline cellulose on the outcome of TEMPO-mediated oxidation

AU - Salminen, Reeta

AU - Reza, Mehedi

AU - Vanhatalo, Kari

AU - Kontturi, Eero

PY - 2017/12/1

Y1 - 2017/12/1

N2 - In an attempt to prepare cellulose nanocrystals (CNCs) by TEMPO-mediated oxidation of microcrystalline cellulose (MCC), a new species of MCC called AaltoCell was placed under scrutiny. Unlike Avicel, AaltoCell is a never-dried species, still containing ca. 10% xylan in its structure. According to thermoporosimetry, the pore size distributions of AaltoCell and Avicel did not differ from each other but after TEMPO-oxidation, AaltoCell exhibited a far lower degree of porosity, hypothetically ascribed to its hemicellulose content. Surprisingly, the charge density imposed by TEMPO-oxidation did not vary between AaltoCell and Avicel despite the different microfibril widths observed, respectively. After TEMPO-oxidation and centrifugation the fine fraction share, indicating the CNC yield, was not more than 11% for AaltoCell, compared to 20% from Avicel.

AB - In an attempt to prepare cellulose nanocrystals (CNCs) by TEMPO-mediated oxidation of microcrystalline cellulose (MCC), a new species of MCC called AaltoCell was placed under scrutiny. Unlike Avicel, AaltoCell is a never-dried species, still containing ca. 10% xylan in its structure. According to thermoporosimetry, the pore size distributions of AaltoCell and Avicel did not differ from each other but after TEMPO-oxidation, AaltoCell exhibited a far lower degree of porosity, hypothetically ascribed to its hemicellulose content. Surprisingly, the charge density imposed by TEMPO-oxidation did not vary between AaltoCell and Avicel despite the different microfibril widths observed, respectively. After TEMPO-oxidation and centrifugation the fine fraction share, indicating the CNC yield, was not more than 11% for AaltoCell, compared to 20% from Avicel.

KW - Cellulose nanocrystals

KW - Cellulose oxidation

KW - Microcrystalline cellulose

KW - Porosity

KW - Thermoporosimetry

UR - http://www.scopus.com/inward/record.url?scp=85031793019&partnerID=8YFLogxK

U2 - 10.1007/s10570-017-1531-3

DO - 10.1007/s10570-017-1531-3

M3 - Article

VL - 24

SP - 5697

EP - 5704

JO - Cellulose

JF - Cellulose

SN - 0969-0239

IS - 12

ER -

ID: 16235015