Sustainable High Yield Route to Cellulose Nanocrystals from Bacterial Cellulose

被引：49

作者：

Paakkonen, Timo ^{[1
]}

Spiliopoulos, Panagiotis ^{[1
]}

Nonappa ^{[2
]}

Kontturi, Katri S. ^{[3
,4
]}

Penttila, Paavo ^{[1
]}

Viljanen, Mira ^{[5
]}

Svedstrom, Kirsi ^{[5
]}

Kontturi, Eero ^{[1
]}

机构：

[1] Aalto Univ, Sch Chem Engn, Dept Bioprod & Biosyst, POB 16300, Aalto 00076, Finland

[2] Aalto Univ, Sch Sci, Dept Appl Phys, POB 15100, Aalto 00076, Finland

[3] VTT Tech Res Ctr Finland, POB 1000, FI-02044 Espoo, Finland

[4] Univ Vienna, Inst Mat Chem & Res, Polymer & Composites Engn PaCE Grp, Wahringerstr 42, A-1090 Vienna, Austria

[5] Univ Helsinki, Dept Phys, POB 64, FI-00014 Helsinki, Finland

来源：

ACS SUSTAINABLE CHEMISTRY & ENGINEERING | 2019年 / 7卷 / 17期

基金：

芬兰科学院;

关键词：

Colloidal dispersion; Gaseous acid; Hydrolysis; Nanocellulose; TEMPO-oxidation; ACID; EXTRACTION; OXIDATION; VAPOR;

D O I：

10.1021/acssuschemeng.9b04005

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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%.

引用

页码：14384 / 14388

页数：9

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