Sustainable High Yield Route to Cellulose Nanocrystals from Bacterial Cellulose

Timo Pääkkönen; Panagiotis Spiliopoulos; Nonappa; Katri S. Kontturi; Paavo Penttilä; Mira Viljanen; Kirsi Svedström; Eero Kontturi

doi:10.1021/acssuschemeng.9b04005

Sustainable High Yield Route to Cellulose Nanocrystals from Bacterial Cellulose

Timo Pääkkönen
, Panagiotis Spiliopoulos
, Nonappa
, Katri S. Kontturi
, Paavo Penttilä
, Mira Viljanen
, Kirsi Svedström
, Eero Kontturi^*

^*Corresponding author for this work

Aalto University
University of Vienna
University of Helsinki

Research output: Contribution to journal › Article › Scientific › peer-review

61 Citations (Scopus)

Abstract

HCl gas hydrolysis of a bacterial cellulose (BC) aerogel followed by 2,2,6,6-tetramethylpiperidine-1-oxyl radical-mediated oxidation was used to produce hydrolyzed BC with carboxylate groups, which subsequently disintegrated into a stable dispersion of cellulose nanocrystals (CNCs). The degree of polymerization was successfully reduced from 2160 to 220 with a CNC yield of >80%.

Original language	English
Pages (from-to)	14384-14388
Journal	ACS Sustainable Chemistry & Engineering
Volume	7
Issue number	17
DOIs	https://doi.org/10.1021/acssuschemeng.9b04005
Publication status	Published - 3 Sept 2019
MoE publication type	A1 Journal article-refereed

Funding

T.P. acknowledges Academy of Finland (Grant no. 300364) for financial support. HYBER Centre of Excellence (2014–2019) and the Aalto University Nanomicroscopy Center (Aalto-NMC) are acknowledged for the use of its facilities. Moreover, E.K. is grateful for the support by the FinnCERES Materials Bioeconomy Ecosystem.

Keywords

Colloidal dispersion
Gaseous acid
Hydrolysis
Nanocellulose
TEMPO-oxidation

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10.1021/acssuschemeng.9b04005Licence: CC BY

Cite this

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title = "Sustainable High Yield Route to Cellulose Nanocrystals from Bacterial Cellulose",

abstract = "HCl gas hydrolysis of a bacterial cellulose (BC) aerogel followed by 2,2,6,6-tetramethylpiperidine-1-oxyl radical-mediated oxidation was used to produce hydrolyzed BC with carboxylate groups, which subsequently disintegrated into a stable dispersion of cellulose nanocrystals (CNCs). The degree of polymerization was successfully reduced from 2160 to 220 with a CNC yield of >80\%.",

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T1 - Sustainable High Yield Route to Cellulose Nanocrystals from Bacterial Cellulose

AU - Pääkkönen, Timo

AU - Spiliopoulos, Panagiotis

AU - Nonappa,

AU - Kontturi, Katri S.

AU - Penttilä, Paavo

AU - Viljanen, Mira

AU - Svedström, Kirsi

AU - Kontturi, Eero

PY - 2019/9/3

Y1 - 2019/9/3

N2 - HCl gas hydrolysis of a bacterial cellulose (BC) aerogel followed by 2,2,6,6-tetramethylpiperidine-1-oxyl radical-mediated oxidation was used to produce hydrolyzed BC with carboxylate groups, which subsequently disintegrated into a stable dispersion of cellulose nanocrystals (CNCs). The degree of polymerization was successfully reduced from 2160 to 220 with a CNC yield of >80%.

AB - HCl gas hydrolysis of a bacterial cellulose (BC) aerogel followed by 2,2,6,6-tetramethylpiperidine-1-oxyl radical-mediated oxidation was used to produce hydrolyzed BC with carboxylate groups, which subsequently disintegrated into a stable dispersion of cellulose nanocrystals (CNCs). The degree of polymerization was successfully reduced from 2160 to 220 with a CNC yield of >80%.

KW - Colloidal dispersion

KW - Gaseous acid

KW - Hydrolysis

KW - Nanocellulose

KW - TEMPO-oxidation

UR - https://www.scopus.com/pages/publications/85071731549

U2 - 10.1021/acssuschemeng.9b04005

DO - 10.1021/acssuschemeng.9b04005

M3 - Article

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SP - 14384

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JO - ACS Sustainable Chemistry & Engineering

JF - ACS Sustainable Chemistry & Engineering

IS - 17

ER -

Sustainable High Yield Route to Cellulose Nanocrystals from Bacterial Cellulose

Abstract

Funding

Keywords

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