摘要
It is extremely dificult toachievearapid and effcient modifcationofnatural polysaccharides,due tothe intrinsicstrong hydrogen bonding networks and the slow mass transfer process during the reaction process.Herein,we found a fascinating anion-tunnel transmission phenomenon in the imidazolium-based ionic liquids with carboxylate anions.A novel click esterification of natural polysaccharides thus was demonstrated undera catalyst-free condition within a very short reaction time of15min at O-80C.Such a super-rapid and highly eficient modification strategy is available for various polysaccharides(clluoe,starchinulin,pululan,dextranand xylan),difrentesterifcatonreactions(acetication,propionation benzoylation,and cyclohexylformylation),and high concentrations,claiming a revolutionary potential in polysaccharide chemistry industries.
出处
《Research》
EI
CAS
CSCD
2022年第2期315-322,共8页
研究（英文）
基金
supported by the National Key Research and Development’Program of China(No.2017YFA0403103)
the Youth Innovation Promotion Association of the Chinese Academy of Sciences(No.2018040)
and the National Natural Science Foundation of China(No.52173292 and 51773210).
