1·The preparation conditions of chitosan and the chitosan with higher deacetylation degree are investigated. The preparation methods of some derivatives of chitosan are also introduced.
研究了壳聚糖的制备条件。同时对高脱乙酰度壳聚糖的制备进行了探索。探讨了一些壳聚糖衍生物的制备方法。
2·For preparing chitosan resin of high deacetylation degree and high cross-linking degree, chitin is taken as raw material and orthogonal test is adopted to determine technological condition.
以甲壳素为原料，采用正交试验法确定制备高脱乙酰度和高交联度的壳聚糖树脂的工艺条件。
3·A dissolving precipitated method has been developed for the preparation of chitosan having a high degree of deacetylation in the presence of ethyl alcohol.
以乙醇为反应介质，采用溶解沉淀法制备了高脱乙酰壳聚糖。
4·The result shows that the composite sorbent has a high adsorption rate when the mass ratio of chitosan to rectorite was 0.04 and the deacetylation degree of chitosan was 90%.
结果表明：当壳聚糖与累托石的质量比为0.04，壳聚糖脱乙酰度为90%时，制成的复合吸附剂吸附效率较高。