Free-standing polysaccharide composite films: Improved preparation and physical properties

被引：20
作者：
Hashizume, Mineo [1 ,2 ]
Ohashi, Masafumi [2 ]
Kobayashi, Hironobu [1 ]
Tsuji, Yuna [2 ]
Iijima, Kazutoshi [1 ,2 ]
机构：
[1] Tokyo Univ Sci, Fac Engn, Dept Ind Chem, Shinjuku Ku, Tokyo 1620826, Japan
[2] Tokyo Univ Sci, Grad Sch Chem Sci & Technol, Shinjuku Ku, Tokyo 1620826, Japan
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2015年 / 483卷
关键词：
Free-standing film; Polysaccharide; Polyion complex; Swelling; Tensile strength; BY-LAYER ASSEMBLIES; CHONDROITIN SULFATE; HYALURONIC-ACID; IN-VITRO; POLYELECTROLYTE COMPLEXES; AQUEOUS-SOLUTION; CHITOSAN; DEGRADATION; HYDROGELS; ADHESIVE;
D O I：
10.1016/j.colsurfa.2015.07.033
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Free-standing films of natural polysaccharides were prepared using hot press techniques. Polyion complexes (PICs) made of acidic polysaccharides such as chondroitin sulfate C and chitosan were formed into thin films by hot pressing. The times needed to conduct the process from PIC formation using polysaccharide solutions of two kinds to obtaining films were 30 min or less under appropriate conditions. The resulting films swelled in distilled water to some degree but were not dissolved despite being made of water-soluble polysaccharides. Contact angle measurements supported dense surface structure of the films because of the effects of hot pressing. The films had sufficient mechanical properties to be used as structural materials. Polysaccharide species and film preparation processes affected some film properties. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：18 / 24
页数：7
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