Preparation of nanoporous cellulose foams from cellulose-ionic liquid solutions

被引：130

作者：

Deng, Meiling ^{[1
]}

Zhou, Qian ^{[1
]}

Du, Anke ^{[1
]}

van Kasteren, Johannes ^{[2
]}

Wang, Yuzhong ^{[1
]}

机构：

[1] Sichuan Univ, State Key Lab Polymer Mat Engn, Ctr Degradable & Flame Retardant Polymer Mat, ERCEPM MoE,Coll Chem, Chengdu 610064, Peoples R China

[2] Eindhoven Univ Technol, TUe Innovat Lab, NL-5600 MB Eindhoven, Netherlands

来源：

MATERIALS LETTERS | 2009年 / 63卷 / 21期

关键词：

Foam; Freeze drying; Ionic liquid; Nanomaterials; Polymers; Regeneration; AEROGELS;

D O I：

10.1016/j.matlet.2009.05.064

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

Nanoporous cellulose foams have been successfully prepared by a procedure in three steps: (i) dissolving in a room temperature ionic liquid (1-butyl-3-methylimidazolium chloride): (ii) coagulation in water; (iii) rapid freeze drying using liquid N-2. The results show that the foam had a 3D open fibrillar network structure with the specific surface area as high as 186.0 m(2)/g and a porosity of 99%. Moreover, the cellulose foam shows cellulose II crystalline structure. Cellulose concentration in hydrogel as well as drying methods influences upon the structure and pore size of cellulose foams. (C) 2009 Elsevier B.V. All rights reserved.

引用

收藏

页码：1851 / 1854

页数：4

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