Preparation and properties of transparent cellulose hydrogels

✍ Scribed by Hidenao Saito; Akihiko Sakurai; Mikio Sakakibara; Hiroshi Saga

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 127 KB
• Volume: 90
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.13015

✦ Synopsis

Abstract

Highly transparent cellulose hydrogels with physical crosslinkage were prepared from nonaqueous organic cellulose solutions and viscose by coagulating and regenerating cellulose in an aqueous solution containing a water‐miscible organic solvent. Nonaqueous organic cellulose solutions used were LiCl/dimethylacetamide, paraformaldehyde/dimethyl sulfoxide, and triethylammonium chloride/dimethyl sulfoxide. Preparation conditions and physical properties of the transparent cellulose hydrogels were studied. The transparency of the cellulose hydrogels depended on the composition of the aqueous solution containing the organic solvent. Furthermore, transparent cellulose hydrogels from viscose showed high tensile strength. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 3020–3025, 2003