Preparation of N-acetylchitooligosacchar
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Sei-ichi Aiba
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Article
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1994
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Elsevier Science
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English
β 616 KB
The conditions for preparing partially IV-acetylated chitosans (PNACs) by reaction of chitosan with acetic anhydride in homogeneous solution were investigated. The following conditions are recommended: chitosan, 1%; acetic acid, 0.4%; methanol, 50%; at room temperature. About 80% of the acetic anhyd