运用等离子体技术改变高分子材料的表面性质的方法主要有三类：等离子体处理、等离子体聚合和等离子体接枝聚合。
There are three ways using plasma technology to modify the surface properties of polymer materials, which are plasma surface treatment, plasma polymerization and plasma graft copolymerization.
甲壳素、壳聚糖是可再生的天然高分子化合物，来源丰富、性质优良。
Chitin, chitosan are recycling natural polymers with abundant and excellent properties.
目前，国内外对于高分子控释膜的制备、性质及其影响因素的研究都十分活跃。
At present, the study of preparation, properties, and influence factors of polymer material controlled release membrane was very active.
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