Bicomponent aligned nanofibers of N-carboxyethylchitosan and poly(vinyl alcohol)

被引:39
作者
Mincheva, Rosica [1 ]
Manolova, Nevena [1 ]
Rashkov, Iliya [1 ]
机构
[1] Bulgarian Acad Sci, Inst Polymers, Lab Bioact Polymers, BU-1113 Sofia, Bulgaria
关键词
electrospinning; water-resistant nanofibers; thermal crosslinking; n-carboxyethylchitosan; poly(vinyl alcohol); aligned nanofibers;
D O I
10.1016/j.eurpolymj.2007.04.020
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Bicomponent nanofibers of N-carboxyethylchitosan (CECh) and poly(vinyl alcohol) (PVA) were obtained by electrospinning of mixed aqueous solutions. The electrospinning of CECh-containing nanofibers was enabled by the ability of PVA to form an elastically deformable entanglement network based on hydrogen bonds. The average diameters of the bicomponent fibers were in the range 100-420 nm. Water-resistant nanofibrous mats were obtained by thermal crosslinking at 100 degrees C for 10 h. Nanofibrous materials with 1D-, 1D-transversery or 3D fiber alignment were obtained depending on the type of the collector used. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2809 / 2818
页数:10
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