通过自由基溶液聚合法,在氧化石墨烯(GO)水溶液中合成聚N,N-二甲基丙烯酰胺/氧化石墨烯(PDMA/GO)纳米复合第一网络水凝胶,之后以N,N-亚甲基双丙烯酰胺(BIS)为交联剂引入化学交联聚丙烯酸(PAA)作为第二网络制备高强度的GO纳米复合双网络水凝胶.通过热重分析、力学性能测试、pH敏感性研究了第二单体从和GO浓度对GO纳米复合双网络水凝胶性能的影响.结果发现,热稳定性、力学性能随GO含量的增加而增加,随AA含量的增加先增加后减小.当pH＞4.25时,GO纳米复合双网络水凝胶具有pH敏感性.
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