Esterification and hydrolysis of cellulose using oxalic acid dihydrate in a solvent-free reaction suitable for preparation of surface-functionalised cellulose nanocrystals with high yield

被引：89

作者：

Li, D. ^{[1
]}

Henschen, J. ^{[1
]}

Ek, M. ^{[1
]}

机构：

[1] KTH Royal Inst Technol, Sch Chem Sci & Engn, Dept Fibre & Polymer Technol, Div Wood Chem & Pulp Technol, Stockholm, Sweden

来源：

GREEN CHEMISTRY | 2017年 / 19卷 / 23期

关键词：

MICROFIBRILLATED CELLULOSE; SUSPENSIONS; NANOFIBERS; OXIDATION;

D O I：

10.1039/c7gc02489d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A one-pot esterification and hydrolysis of cellulose was carried out by treating cellulose fibres with molten oxalic acid dihydrate. Each cellulose oxalate had a free carboxyl content above 1.2 mmol. g(-1) and an average molecular weight of approximately 40 kDa. Aqueous suspensions of the oxalates were sonicated to prepare cellulose nanocrystals with a gravimetric yield of 80.6%.

引用

页码：5564 / 5567

页数：4