Journal
BIORESOURCE TECHNOLOGY
Volume 88, Issue 1, Pages 81-83Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0960-8524(02)00264-X
Keywords
acetic acid lignin; amphiphilicity; lignin gel; swelling in aqueous ethanol
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Lignin gels were prepared from acetic acid lignin by use of polyethylene glycol diglycidyl ether as cross-linker. The gels were found to swell in aqueous ethanol solution, in particular 50% (v/v) solution. In addition, they also swelled in alkaline solution and shrank upon heating. A literature search showed that investigation on gel swelling in aqueous ethanol has not been reported so far. Gels prepared from the cross-linker alone and its analogues did not show such swelling characteristics in aqueous ethanol. Therefore, the unique swelling property must be attributable to an intrinsic property of lignin. (C) 2002 Elsevier Science Ltd. All rights reserved.
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