以甲基丙烯酸N,N-二甲氨基乙酯(DMAEMA)和丙烯酸(AA)为单体,N,N-亚甲基双丙烯酰胺(MBA)为交联剂,过硫酸铵(APS)和亚硫酸氢钠(NaHSO3)为引发剂,在氧化石墨烯(GO)水分散液中合成了高强度GO纳米复合智能水凝胶.研究了GO和交联剂MBA含量对高强度GO纳米复合智能水凝胶力学性能、热稳定性的影响.研究表明,GO纳米复合智能水凝胶的热稳定性、力学性能,随GO或MBA含量的增加其强度增加;当pH＜6或pH＞8时,GO纳米复合智能水凝胶具有pH敏感性;GO纳米复合智能水凝胶的低临界溶解温度(LCST)约为30℃;当NaCl浓度小于0.4 mol/L时GO纳米复合智能水凝胶具有明显的离子强度敏感性.
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