Versatile Molding Process for Tough Cellulose Hydrogel Materials

Shape-persistent and tough cellulose hydrogels were fabricated by a stepwise solvent exchange from a homogeneous ionic liquid solution of cellulose exposure to methanol vapor. The cellulose hydrogels maintain their shapes under changing temperature, pH and solvents. The micrometer-scale patterns on...

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Published inScientific reports Vol. 5; no. 1; p. 16266
Main Authors Kimura, Mutsumi, Shinohara, Yoshie, Takizawa, Junko, Ren, Sixiao, Sagisaka, Kento, Lin, Yudeng, Hattori, Yoshiyuki, Hinestroza, Juan P.
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 05.11.2015
Nature Publishing Group
Subjects
639/638/298/54/989
639/638/455/953
Cellulose
Fibers
Humanities and Social Sciences
Hydrogels
Methanol
multidisciplinary
pH effects
Science
Solvents
Temperature effects
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Summary:Shape-persistent and tough cellulose hydrogels were fabricated by a stepwise solvent exchange from a homogeneous ionic liquid solution of cellulose exposure to methanol vapor. The cellulose hydrogels maintain their shapes under changing temperature, pH and solvents. The micrometer-scale patterns on the mold were precisely transferred onto the surface of cellulose hydrogels. We also succeeded in the spinning of cellulose hydrogel fibers through a dry jet-wet spinning process. The mechanical property of regenerated cellulose fibers improved by the drawing of cellulose hydrogel fibers during the spinning process. This approach for the fabrication of tough cellulose hydrogels is a major advance in the fabrication of cellulose-based structures with defined shapes.
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ISSN:2045-2322
2045-2322
DOI:10.1038/srep16266