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Article: Improvement of the Mechanical Properties of Chitosan Films by the Addition of Poly(ethylene oxide).
- Article from:
- Polymer Engineering and Science
- Article date:
- May 1, 2000
- Author:
CopyrightCOPYRIGHT 2000 Society of Plastics Engineers, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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The mechanical properties of films prepared from mixed acetic acid aqueous solutions of chitosan ([M.sub.w] = 400,000; [M.sub.w]/[M.sub.n] = 3.8) and poly(ethylene oxide) (PEO) (viscosity average molecular weight of 200,000 or 600,000) were determined. A chitosan:PEO weight ratio of 10:2 improved the mechanical properties compared with pure chitosan films. The improvement of the mechanical properties correlated with a small reduction of the correlation length measured by small-angle neutron scattering (SANS).
V. L. ALEXEEV [*]
INTRODUCTION
We present here the experimental results on the mechanical and structural properties of the films ...