聚丙烯酰胺与聚苯乙烯组成的亲水-疏水互穿树脂

Polyacrylamide-polystyrene based Hydrophilic-hydrophobic Interpenetrating Polymer Networks

用分步法合成了交联聚丙烯酸甲酯(PMA)-交联聚苯乙烯(PS)互穿树脂,然后用二乙烯三胺对其胺解,得到由交联聚丙烯酰胺-交联聚苯乙烯组成的亲水-疏水互穿树脂.利用疏水部分(PS)来调整亲水部分(PAM)的溶胀,来分离具有不同体积的酸.

Polymethacrylate （PMA） and polystyrene （PS） based interpenetrating polymer networks （IPN） were prepared by sequential suspension polymerization method. The obtained IPNs are aminated with diethenetriamine （DETA）. Thus the hydrophobic PMA networks are converted into hydrophilic polyacrylamide（PAM）networks. The hydrophobic polymer network （PS） can inhibit the swelling ratios of the hydrophilic polymer networks （PAM） in the polar solvents , so the PAM-PS IPN selectively adsorb the smaller organic acid .