Self-assembled liquid crystal film from mechanically defibrillated chitosan nanofibers

被引：16

作者：

Liu, Dagang ^{[1
,2
]}

Wu, Qinglin ^{[2
]}

Chang, Peter R. ^{[3
]}

Gao, Guizhi ^{[1
]}

机构：

[1] Nanjing Univ Informat Sci & Technol, Jiangsu Prov Key Lab Atmospher Environm Monitorin, Sch Chem, Nanjing 210044, Jiangsu, Peoples R China

[2] Louisiana State Univ, Ctr Agr, Sch Renewable Nat Resources, Baton Rouge, LA 70803 USA

[3] Agr & Agri Food Canada, Bioprod & Bioproc Natl Sci Program, Saskatoon, SK S7N 0X2, Canada

来源：

CARBOHYDRATE POLYMERS | 2011年 / 84卷 / 01期

基金：

美国农业部;

关键词：

Chitosan; Nanofiber; Liquid crystal; SOLID FILMS; CELLULOSE;

D O I：

10.1016/j.carbpol.2010.12.028

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Wet-grinding and high-pressure homogenization were combined to defibrillate chitosan particles into nanoscaled fibrils, and the obtained nanofiber was made into a high strength liquid crystal film by self-organization at relatively low temperature. Mechanically disassembled chitosan nanofibers showed an average diameter of 50 nm. The fabricated transparent liquid crystal film had a high tensile strength of 100.5 +/- 4.0 MPa and a Young's modulus of 2.2 +/- 0.2 GPa due to its ordered, layered, and porous-free structure. A green, efficient and reliable approach for producing chitosan nanofibers and liquid crystal film has been developed. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：686 / 689

页数：4

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