高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (8): 1309.

• 论文 • 上一篇    下一篇

快速温度敏感聚(N-异丙基丙烯酰胺-co-丙烯酰胺)水凝胶的制备及性能研究

张先正, 卓仁禧   

  1. 教育部生物医用高分子材料重点实验室, 武汉大学化学系, 武汉 430072
  • 收稿日期:1999-04-09 出版日期:2000-08-24 发布日期:2000-08-24
  • 通讯作者: 卓仁禧(1931年出生),男,教授,博士生导师,主要从事生物医用高分子材料研究.
  • 基金资助:

    国家自然科学基金(批准号:29874028)

Synthesis and Properties of Fast Responsive, Temperature Sensitive P(NIPA-co- AA) Hydrogel

ZHANG Xian-Zheng, ZHUO Ren-Xi    

  1. Key Laboratory of Biomedical Polymer Materials of the Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, China
  • Received:1999-04-09 Online:2000-08-24 Published:2000-08-24

PDF (PC)

被引次数

111

摘要： 于48℃下制备快速温度敏感聚(N-异丙基丙烯酰胺-co-丙烯酰胺)水凝胶,其在室温具有较大的平衡溶胀率.通过改变丙烯酰胺的含量可以调节水凝胶的较低临界溶解温度.

关键词: 温度敏感, N-异丙基丙烯酰胺, 较低临界溶解温度, 水凝胶

Abstract: Poly(N-isopropylacrylamide-co-acrylamide)[P(NIPA-co-AA)] hydrogels were synthesized by carrying out the polymerization at 48 ℃. These hydrogels show large equilibrated swelling ratio(SR) at the temperature below their lower critical solution temperature(LCST) or phase transition temperature(Ttr). The LCSTof the gels is increased as the content of the hydrophilic monomer (AA) is increased. Based on our experimental results, these hydrogels exhibit a fast responsive rate to the external temperature changes. The endowed properties of these hydrogels may be useful in biotechnological and biomedical fields.

Key words: Temperature sensitive, NIPA, LCST, Hydrogel

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