双酚A环氧衍生物分子印迹聚合物的制备 及其吸附性能研究

Synthesis and adsorption capability of molecular imprinted polymers of bis-phenol A epoxy derivatives

中文关键词:  双酚A环氧衍生物  分子印迹聚合物  合成  吸附性能

英文关键词:bisphenol A epoxy derivatives  molecularly imprinted polymer  synthesis  adsorption capability

中文摘要:

      目的 制备双酚A环氧衍生物的分子印迹聚合物。方法 采用沉淀聚合法, 以双酚A(bisphenol A, BPA)和双酚A二环氧甘油(bisphenol A diglycidyl ether, BADGE)为双模板分子, α-甲基丙烯酸(methacrylic acid, MAA)为功能单体, 三羟甲基丙烷三甲基丙烯酸酯(trimethylolpropane trim ethacrylate, TRIM)为交联剂, 偶氮二异丁腈(azodiisobutyronitrile, AIBN)为引发剂, 合成了一种高选择性的分子印迹聚合物, 运用扫描电镜、红外光谱分析等手段对其形貌、物理特征进行了表征, 同时进行了聚合物的静态吸附与动态吸附性能研究。结果 合成的分子印迹聚合物(molecularly imprinted polymers, MIPs)对10 种化合物的最大平衡吸附量为18.12~27.00 mg/g, 对10种化合物的吸附略有区别, 但差异不大, 而非印迹聚合物(non-imprinted polymers, NIPs)则对10种化合物的吸附量为7.10~10.73 mg/g, 说明NIPs吸附是由于存在物理吸附。结论 10种目标化合物在MIPs上均有吸附, 能够应用于分子印迹-固相萃取-高效液相色谱检测方法的建立。

英文摘要:

      Objective To synthesize the molecular imprinted polymers (MIPs) of bisphenol A epoxy derivatives. Methods The molecular imprinted polymers (MIPs) was synthesized by polymerization for 24 h using bisphenol A and bisphenol A diglycidyl ether as double templates, α-methacrylic acid (MAA) as monomer, trimethylolpropane trim ethacrylate (TRIM) as cross-linker and 2,2-zaobisisobutyronitrile (AIBN) as initiator. The polymers were characterized by IR spectra and scanning electron microscope and the adsorbent ca-pacity and selectivity were also evaluated. Results The max adsorption capacity (Qmax) of MIPs was between 18.12~27.00 mg/g and the max adsorption capacity (Qmax) of NIPs was between 7.10~10.73 mg/g. The prepared MIPs showed a little different absorption abilities to 10 bisphenol A epoxy derivatives. Conclusion The prepared MIPs showed a better absorption of 10 bisphenol A epoxy derivatives and thus could be used to develop a method for the simultaneous determination of bisphenol A epoxy derivatives by MIP-solid phase extraction (SPE)-high performance liquid chromatography (HPLC) method.