摘要
采用分步法制备了聚丙烯酸/聚N-异丙基丙烯酰胺互穿网络水凝胶,研究了该互穿水凝胶在不同温度和酸性条件下的溶胀性能。结果表明,该互穿水凝胶在pH=2的酸性条件下的吸水率为18 g/g,而在pH=10的碱性条件下吸水率达38 g/g,体现出明显地pH敏感性能;同时,该互穿水凝胶兼具热缩温敏性能。
Interpenetrating polymer network （IPN） hydrogels which are composed of poly （N-isopropylacrylamide） （PNIPAAm） and poly（acrylic acid） were synthesized by a sequential IPN method. The equilibrium swelling ratios（SR） of the hydrogels were investigated under conditions of different pH and temperature. It was found that SR was 18 g/g or 38 g/g under acidic or basic conditions, indicating that the hydrogels possessed pH sensitivity. It appeared that the IPN hydrogels exhibited both temperature and pH sensitivity.
出处
《精细石油化工》
CAS
CSCD
北大核心
2010年第5期73-75,共3页
Speciality Petrochemicals
基金
河南省教育厅自然科学(2010B150032)研究项目
周口师范师范学院青年科研基金(zkqn200902)
关键词
聚丙烯酸
聚(N-异丙基丙烯酰胺)
互穿网络水凝胶
温度敏感
PH敏感
水凝胶
poly（acrylic acid）
poly（N-isopropylacrylamide）
interpenetrating polymer network
hydrogel
temperature sensitivity
pH sensitivity
