Mechanical Reinforcement of Continuous Flow Spun Polyelectrolyte Complex Fibers

被引：18

作者：

Granero, Alberto J. ^{[1
]}

Razal, Joselito M. ^{[1
]}

Wallace, Gordon G. ^{[1
]}

Panhuis, Marc In Het ^{[1
]}

机构：

[1] Univ Wollongong, ARC Ctr Excellence Electromat Sci, Intelligent Polymer Res Inst, Sch Chem, Wollongong, NSW 2522, Australia

来源：

MACROMOLECULAR BIOSCIENCE | 2009年 / 9卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

chitosan; conductivity; fiber spinning; gellan gum; mechanical reinforcement; polyelectrolyte complexation; CARBON-NANOTUBE COMPOSITES; GELLAN GUM; SOLUTION INTERFACES; CHITOSAN; TRANSPARENT; SCAFFOLD;

D O I：

10.1002/mabi.200800257

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A simple continuous flow wet-spinning method to achieve mechanical reinforcement of the two oppositely charged biopolymers chitosan and gellan gum is described. The mechanical properties of these biopolymers are influenced by the order of addition. Using a facile method for mechanical reinforcement of gellan gum/chitosan fibers resulted in increases in Young's modulus, tensile strength, and toughness. Spinning gellan gum into chitosan resulted in the strongest fibers. We show that our fibers can provide a mechanical alternative for bio-fibers without the need of cross-linking. It is demonstrated that the fibers become ionically conducting in the presence of water vapor.

引用

页码：354 / 360

页数：7