以丙酮为溶剂,分别采用丙酸(AS)、磷酸(H3PO4)以及2-丙烯酰胺基-2-甲基丙磺酸(AMPS)中和甲基丙烯酸-N,N-二甲基胺基乙酯(DMAEMA),然后减压蒸馏去除溶剂,合成了3种可聚合离子液体DMAEMA-AS/H3PO/AMPS,采用差示扫描量热(DSC)表征其玻璃化温度(Tg).以过硫酸铵(APS)为引发剂,以N,N-亚甲基双丙烯酰胺(MBAM)为交联剂,甲基丙烯酸-2-羟基乙酯(HEMA)分别与3种可聚合离子液体在水溶液中交联共聚,合成了Poly(HEMA-co-DMAEMA-AS/H3 PO4/AMPS)凝胶,采用重量法研究了3种凝胶的溶胀行为.结果表明,DMAEMA-AS/H3 PO4/AMPS的玻璃化温度分别为-61.9℃、76.2℃、-45.8℃,Poly(HEMA-co-DMAEMA-AS)和Poly(HEMA-co-DMAEMA-H3 PO4)凝胶可在水及多种有机溶剂中溶胀,而Poly(HEMA-co-DMAEMA-AMPS)凝胶在任何溶剂中均不溶胀,并初步探讨了产生这种现象的原因.
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