Pre-irradiation grafting of cellulose and slightly carboxymethylated cellulose (CMC) fibres |
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| Institution: | 1. Institute of Isotopes, HAS, Budapest, Hungary;2. Budapest University of Technology and Economics, Budapest, Hungary;1. Hungarian Academy of Sciences, Institute of Isotopes, Budapest, Hungary;2. Hungarian Academy of Sciences, Institute of Isotopes, Budapest, Hungary;1. Department of Chemical Engineering, National Chung Hsing University, 250 Kuo Kuang Road, Taichung 40227, Taiwan, ROC;2. Department of Chemical Engineering, Hsiuping Institute of Technology, 11 Gongye Road, Dali City, Taichung County 41280, Taiwan, ROC;3. Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan, ROC;1. Department of Chemical Engineering, Faculty of Chemistry, Wroclaw University of Technology, Wroclaw, Poland;2. Department of Polymer, Faculty of Chemistry, University of Concepción, Concepción, Chile;3. Division of Polymer and Carbon Materials, Wroclaw University of Technology, Wroclaw, Poland;4. Department of Chemical Engineering, Faculty of Engineering, Ege University, Izmir, Turkey;1. Postgraduate Program in Dentistry, Department of Dentistry, State University of Ponta Grossa, Brazil;2. Laboratory of Pharmaceutical Products, Postgraduate Program in Pharmaceutical Sciences, Department of Pharmaceutical Sciences, State University of Ponta Grossa, Brazil;3. Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, Federal University of Parana, Brazil |
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| Abstract: | Acrylamide, hydroxypropyl acrylate, hydroxypropyl methacrylate and 2-ethylhexyl methacrylate vinyl monomers were grafted onto cellulose as well as onto cellulose of improved accessibility (slightly carboxymethylated cellulose (CMC)) by the pre-irradiation grafting technique. The effect of dose, monomer structure, crosslinking agent and carboxymethylation on the grafting yield was studied and the optimal conditions for the grafting were established. Grafting, with the exception of acrylamide (AAm), decreased the swelling of the samples, which is advantageous for some applications. In case of AAm decrease in swelling was observed only when crosslinking agent was applied. At low doses (<5 kGy) the high accessibility of carboxymethylated cellulose resulted in a higher grafting yield. |
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