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DOI	10.1038/s41467-021-22682-3
	Unique reactivity of nanoporous cellulosic materials mediated by surface-confined water
	Beaumont M.; Jusner P.; Gierlinger N.; King A.W.T.; Potthast A.; Rojas O.J.; Rosenau T.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	The remarkable efficiency of chemical reactions is the result of biological evolution, often involving confined water. Meanwhile, developments of bio-inspired systems, which exploit the potential of such water, have been so far rather complex and cumbersome. Here we show that surface-confined water, inherently present in widely abundant and renewable cellulosic fibres can be utilised as nanomedium to endow a singular chemical reactivity. Compared to surface acetylation in the dry state, confined water increases the reaction rate and efficiency by 8 times and 30%, respectively. Moreover, confined water enables control over chemical accessibility of selected hydroxyl groups through the extent of hydration, allowing regioselective reactions, a major challenge in cellulose modification. The reactions mediated by surface-confined water are sustainable and largely outperform those occurring in organic solvents in terms of efficiency and environmental compatibility. Our results demonstrate the unexploited potential of water bound to cellulosic nanostructures in surface esterifications, which can be extended to a wide range of other nanoporous polymeric structures and reactions. © 2021, The Author(s).
语种	英语
scopus关键词	cellulose; hydroxyl group; nanoporous material; solvent; water; cellulose; chemical reaction; experimental study; polymer; reaction rate; solvent; acetylation; Article; chemical structure; esterification; hydration; polymerization
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251462
作者单位	Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Tulln, Austria; Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Aalto, Finland; Institute for Biophysics, Department of Nanobiotechnology, University of Natural Resources and Life Sciences, Vienna, Austria; Materials Chemistry Division, Department of Chemistry, University of Helsinki, Helsinki, Finland; Bioproducts Institute, Departments of Chemical and Biological Engineering, Chemistry and Wood Science, University of British Columbia, Vancouver, BC, Canada; Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Turku, Finland
推荐引用方式 GB/T 7714	Beaumont M.,Jusner P.,Gierlinger N.,et al. Unique reactivity of nanoporous cellulosic materials mediated by surface-confined water[J],2021,12(1).
APA	Beaumont M..,Jusner P..,Gierlinger N..,King A.W.T..,Potthast A..,...&Rosenau T..(2021).Unique reactivity of nanoporous cellulosic materials mediated by surface-confined water.Nature Communications,12(1).
MLA	Beaumont M.,et al."Unique reactivity of nanoporous cellulosic materials mediated by surface-confined water".Nature Communications 12.1(2021).