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研究了壳聚糖-聚乙烯基恶唑啉半互穿聚合物网络膜对pH值的敏感性，发现该膜在pH<6时溶胀度迅速增加，在pH＝3.2时达到最大值；膜在不同pH值溶液中可交替溶胀收缩，且这种溶胀-收缩行为重复可逆。
The sensitivity of the network of chitosan-polyvinyloxazoline semi-interpenetrating polymer networks to pH was studied. The results showed that the swelling degree of the network increased rapidly at pH <6 and reached the maximum at pH 3.2. Different pH solution can alternately swell and shrink, and this swelling - shrinkage behavior reversible.