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Electron Beam Irradiation of Cellulosic Materials-Opportunities and Limitations
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- Henniges, U. (author)
- Universität für Bodenkultur,University of Natural Resources and Life Sciences
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- Hasani, Merima, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Potthast, A. (author)
- Universität für Bodenkultur,University of Natural Resources and Life Sciences
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- (creator_code:org_t)
- 2013-04-29
- 2013
- English.
- In: Materials. - : MDPI AG. - 1996-1944. ; 6:5, s. 1584-1598
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The irradiation of pulp is of interest from different perspectives. Mainly it is required when a modification of cellulose is needed. Irradiation could bring many advantages, such as chemical savings and, therefore, cost savings and a reduction in environmental pollutants. In this account, pulp and dissociated celluloses were analyzed before and after irradiation by electron beaming. The focus of the analysis was the oxidation of hydroxyl groups to carbonyl and carboxyl groups in pulp and the degradation of cellulose causing a decrease in molar mass. For that purpose, the samples were labeled with a selective fluorescence marker and analyzed by gel permeation chromatography (GPC) coupled with multi-angle laser light scattering (MALLS), refractive index (RI), and fluorescence detectors. Degradation of the analyzed substrates was the predominant result of the irradiation; however, in the microcrystalline samples, oxidized cellulose functionalities were introduced along the cellulose chain, making this substrate suitable for further chemical modification.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- carboxyl groups
- molar mass
- carbonyl groups
- degradation
- crystalline cellulose
- fibrillated cellulose
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- art (subject category)
- ref (subject category)
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