期刊
CARBOHYDRATE POLYMERS
卷 285, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2022.119222
关键词
Anhydroglucose; Biopolymer; Cellulose; In vitro synthesis; Polysaccharide; Ring-opening polymerization
资金
- University of Natural Resources and Life Sciences, Vienna (BOKU)
- County of Lower Austria
- Lenzing AG
- Wood K plus
- GFF Gesellschaft fur Forschungsfodrderung Niederodsterreich m.b.H. [LSC20-002]
The implementation of cellulose as a green alternative to classical polymers has sparked research on the synthesis of defined derivatives of this biopolymer for various high-tech applications. In vitro synthesis of cellulose using a bottom-up approach provides specimens with accurate substituent patterns and degrees of polymerization, not accessible from native cellulose. Cationic ring-opening polymerization has been established as an excellent means of precise modification for regio- and stereoselective substitution.
The implementation of cellulose as a green alternative to classical polymers sparks research on the synthesis of defined derivatives of this biopolymer for various high-tech applications. Apart from the scientific challenge, the in vitro synthesis of cellulose using a bottom-up approach provides specimens with absolutely accurate substituent patterns and degrees of polymerization, not accessible from native cellulose. Synthetic cellulose exhibiting a comparably high degree of polymerization (DP) was obtained starting from cellobiose by biocatalytic synthesis implementing cellulase. Cationic ring-opening polymerization has been established in the last two decades, representing an excellent means of precise modification with regards to regio-and stereoselective substitution. This method rendered isotopically enriched cellulose as well as enantiomers of native cellulose (L-cellulose, D, L-cellulose) accessible. In this review, techniques for in vitro cellulose synthesis are summarized and critically compared - with a special focus on more recent developments. This is complemented by a brief overview of alternative enzymatic approaches.
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