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Chitosan is a polyaminosaccharide, normally obtained by alkaline deacetylation of chitin . Chitosan, even having a large amount of ¨CNH2 group, is not found to be effective for base catalyzed reactions . The generally used method is to treat with HCl and then to form chitosan beads by adding it into the NaOH solution. It will be a better choice to functionalize the chitosan avoiding the use of acids and alkalis to obtain active base catalyst. |
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dz²ÝÂþÂþ: ½ð±Ò+7, ·ÒëEPI+1, ¡ïÓаïÖú 2014-08-11 10:19:57
RXMCDM: ½ð±Ò+1, ¶àлӦÖú£¡ 2014-08-10 15:08:25
dz²ÝÂþÂþ: ½ð±Ò+7, ·ÒëEPI+1, ¡ïÓаïÖú 2014-08-11 10:19:57
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