多壁碳纳米管(MWCNT)经HNO3/H2SO4 混酸氧化处理、二氨基-二苯甲烷化学修饰后,得到胺功能化多壁碳纳米管(MWCNT-NH2);通过原位聚合制备多壁碳纳米管/甲基丙烯酸甲酯-丙烯酰胺共聚物杂化膜.采用拉曼光谱、红外光谱、扫描电镜表征了多壁碳纳米管化学修饰前、后的结构和形貌；采用扫描电镜和zeta电位仪分析了杂化膜的结构和表面荷电特性；实验考察了杂化膜在苯、环已烷中吸附-溶胀性能.研究结果显示,MWCNT—NH2/poly (MMA-AM)杂化膜的表面zeta电位随MWCNT-NH2填充量的增加而增大,MWCNT—NH2在杂化膜中分散性较好；在碳纳米管填充量相同的情况下,MWCNT—NH2/poly(MMA-AM)杂化膜的苯平衡吸附溶胀度与苯/环己烷吸附-溶胀选择性大于MWCNT/poly(MMA-AM)杂化膜.MWCNT—NH2/poly (MMA-AM)杂化膜的苯平衡吸附-溶胀度与苯/环己烷平衡吸附-溶胀选择性随MWCNT—NH2填充量的增加而增大；而MWCNT/poly(MMA-AM)杂化膜的苯平衡吸附-溶胀度随MWCNT填充量的增加略有增大,苯/环己烷平衡吸附-溶胀选择性随MWCNT填充量的增加呈下降趋势.研究结果表明,MWCNT—NH2/poly(MMA-AM)杂化膜对苯/环己烷具有苯优先选择吸附-溶胀的特性,且苯优先选择吸附-溶胀的特性随杂化膜中MWCNT—NH2填充量的增加而更加显著.
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