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Preparation of synthetic wood composites using ionic liquids |
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| Authors: | Trevor J Simmons Sang Hyun Lee Jianjun Miao Minoru Miyauchi Tae-Joon Park Shyam S Bale Ravi Pangule Justin Bult Jeffrey G Martin Jonathan S Dordick Robert J Linhardt |
| Institution: | 1. Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA 2. Coordinaci??n para la Innovaci??n y la Aplicaci??n de la Ciencia y Tecnolog??a, Universidad Aut??noma de San Luis Potos??, San Luis Potos??, SLP, Mexico 3. Rensselaer Nanocenter, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA 4. Department of Microbial Engineering, University of Konkuk, Seoul, 143-701, Korea 5. Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA 6. Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA 7. Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA 8. Department of Biology, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA |
| Abstract: | Synthetic wood composite films containing cellulose, hemicelluloses, and lignin, the three major components of natural wood, were prepared in a room temperature ionic liquid solvent, 1-ethyl-3-methylimidazolium acetate, EMIM]Ac]. Various synthetic wood composites were obtained by dissolution of individual wood components together with additives, including polyethylene glycol (PEG), chitosan, and multi-wall carbon nanotubes (MWNTs) in EMIM]Ac]. The addition of water affords a gel that was dried in either a low humidity environment or under vacuum. Synthetic wood films showed smoother surface textures, higher water resistance, and higher tensile strengths than cellulose films formed by the same methods. Tailor-made synthetic wood composites were also prepared having a variety of desirable properties, including antimicrobial activities, controlled hydro-phobicity/philicity, high relative dielectric constant, and a high degree of cohesiveness. |
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