通过调节单体、交联剂和致孔剂的种类及数量合成了一系列具有不同孔结构的丙烯酸酯树脂,并从中选出具有典型吸附差异的2种树脂,拥有适合的孔分布结构的三羟甲基丙烷三甲基丙烯酸甲酯(TRIM)聚合树脂(1*)和含酰胺基的三烯丙基异氰尿酸酯(TAIC)与TRIM共聚树脂(5#),与商业化大孔丙烯酸酯树脂XAD-7作比较,研究了丙烯酸酯树脂对泰乐菌素的吸附行为和机理.结果表明,树脂1#表现出了对泰乐菌素有最高的吸附量.3种吸附剂的吸附量随溶液pH值的升高呈增加趋势.吸附剂的吸附能力随溶液NaC1离子浓度的增强而提高,而对CuCl2则呈相反趋势,这是因为疏水作用和孔径排斥效应的贡献.泰乐菌素在3种吸附剂上的吸附动力学均符合准二级动力学模型,吸附等温线符合Langmuir模型.升高温度可以使树脂吸附能力增强,可能是“溶剂替代”效应所致.
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