对烷基化壳聚糖进行X射线光电子能谱分析表明，随着卤代烷试剂反应活性的增高，发生在壳聚糖羟基上的烷基取代反应增多。
X-ray photoelectron spectroscopy (XPS) indicated that the higher reaction activity of alkyl halide, the more alkyl substitution degree on hydroxyl group of chitosan.
环戊烯与氢卤素加成反应制备卤代环戊烷，工艺流程简单，原料经济，收率高，易实现工业化。
Preparing cyclopentane halide by the addition reaction of cyclopentene with hydrogen halide is a simplified process with a high yield and can be used in a large scale.
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