Wet spinning of fibers made of chitosan and chitin nanofibrils

被引：95

作者：

Yudin, Vladimir E. ^{[1
,2
]}

Dobrovolskaya, Irina P. ^{[1
]}

Neelov, Igor M. ^{[1
,3
]}

Dresvyanina, Elena N. ^{[1
]}

Popryadukhin, Pavel V. ^{[1
]}

Ivan'kova, Elena M. ^{[1
]}

Elokhovskii, Vladimir Yu. ^{[1
]}

Kasatkin, Igor A. ^{[4
]}

Okrugin, Boris M. ^{[4
]}

Morganti, Pierfrancesco ^{[5
]}

机构：

[1] Russian Acad Sci, Inst Macromol Cpds, St Petersburg 199004, Russia

[2] St Petersburg Polytech Univ, St Petersburg 195251, Russia

[3] St Petersburg Natl Res Univ Informat Technol Mech, St Petersburg 197101, Russia

[4] St Petersburg State Univ, St Petersburg 199034, Russia

[5] Univ Naples 2, Naples, Italy

来源：

CARBOHYDRATE POLYMERS | 2014年 / 108卷

基金：

俄罗斯基础研究基金会;

关键词：

Chitin/chitosan; Composite fibers; Structure; Modeling; ALPHA-CHITIN;

D O I：

10.1016/j.carbpol.2014.02.090

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Biocompatible and bioresorbable composite fibers consisting of chitosan filled with anisotropic chitin nanofibrils with the length of 600-800 nm and cross section of about 11-12 nm as revealed by SEM and XRD were prepared by coagulation. Both chitin and chitosan components of the composite fibers displayed preferred orientations. Orientation of chitosan molecules induced by chitin nanocrystallites was confirmed by molecular modeling. The incorporation of 0.1-0.3 wt.% of chitin nanofibrils into chitosan matrix led to an increase in strength and Young modulus of the composite fibers. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：176 / 182

页数：7

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