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在45%氢氧化钠溶液中,反应温度不高于80℃时可以直接以超细粉碎的甲壳素为原料脱乙酰制备能溶于水的壳聚糖,测定其脱乙酰度约为50%,XRD表明其内部结构呈非晶态。
In 45% sodium hydroxide solution, when the reaction temperature is not higher than 80 ℃, the chitosan soluble in water can be directly deacetylated by using ultra-finely ground chitin as the raw material, and the degree of deacetylation is determined to be about 50% XRD shows that its internal structure is amorphous.