【摘要】 以具有pH敏感性的聚衣康酸网络为基础,利用分步互穿聚合物网络(IPN)技术引入了另一具有温度敏感性的聚N-异丙基丙烯酰胺网络,制得了一种新的全IPN型水凝胶,对其溶胀性能进行研究,发现其在25~45℃的温度区域表现出明显的收缩特性,且随着pH增加,凝胶的溶胀率变大。这表明聚衣康酸/聚N-异丙基丙烯酰胺互穿网络水凝胶具有温度及pH双重敏感特性。更多还原

【Abstract】 Polyitaconic acid/ Poly N-isopropyl acrylamide interpenetrating polymer network hydrogel was synthesized.From study of swelling ratios of the hydrogel in different conditions,it was found that the hydrogel displayed obvious contraction characteristic in 25～45 ℃ temperature ranges and its swelling ratio increased as the pH rise.The hydrogel had temperature and pH-sensitive character.更多还原