甲壳质在氢氧化钠－醇－水体系中的脱乙酰基反应  

Deacetylation of chitin in system of sodium hydroxide alcohol water

作　　者：王永安[1] 李林田[1] 王萍[1] 刘宗明[1] 

机构地区：[1]大连理工大学化工学院

出　　处：《大连理工大学学报》1996年第6期677-681,共5页Journal of Dalian University of Technology

摘　　要：分别以８种一元醇和水做溶剂，配制成不同ＮａＯＨ浓度及醇水比的溶液，在此溶液中进行了甲壳质脱乙酰反应．发现，不同醇、氢氧化钠浓度、醇水比、搅拌都对反应速度有明显的影响．甲壳质在氢氧化钠－醇－水体系中进行脱乙酰反应，要比在氢氧化钠水溶液中容易进行．A mixture of water and one of eight kinds of monohydric alcohols is used as the solvent, to make NaOH solution have different sodium hydroxide concentration and alcohol/water ratio. Deacetylation of chitin is carried out in the solution. Striking effects caused by the difference in the nature of alcohol, sodium hydroxide concentration, alcohol/water ratio and the condition of stirring on the reaction velocity are examined. Deacetylation of chitin carried out in “sodium hydroxide alcohol (≤C 4) water” system proceeds more easily than in aqueous sodium hydroxide. The action of alcohol in the system in the deacetylation of chitin is also discussed.

关 键 词：甲壳质 醇 壳聚糖 脱乙酰基反应 

分 类 号：O636.1[理学—高分子化学]