Cellulose is an important natural biodegradable polymer. The deficiency of cellulose can be improved by graft copolymerization with caprolactam. In this paper, dissolution property of cellulose in organic phase of DMAC/LiCl was discussed as well as the graft copolymerization reaction of cellulose and caprolactam, and grafted copolymer was characterized.%纤维素是一种重要的天然生物可降解聚合物，将纤维素与己内酰胺接枝共聚可以改性天然纤维素的不足。以纤维素为原料，讨论其在DMAC/LiCl体系有机相中溶解性质及与己内酰胺的接枝共聚反应，并对接枝物进行了表征测试。
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