CAJ | 학술논문

利用分子印迹技术,制备用于4-甲基咪唑(4-MI)快速检测的高分子材料.以4-甲基咪唑为模板分子,α-甲基丙烯酸(MAA)为功能单体,偶氮二异丁腈(AIBN)为引发剂,乙二醇二甲基丙烯酸酯(EDMA)为交联剂,在乙腈中通过沉淀聚合制备了分子印迹聚合物.用紫外分光光度法对4-MI与MAA的相互作用进行了分析,结果表明主客体主要存在形式为,1个4-MI为1个MAA所包围.利用Langmuir数学模型对吸附特性进行了分析,Scatchard图显示印迹聚合物的最大吸附量Bmax=221.14μmol/g和解吸常数KD=1.8mmol/L.同时对印迹聚合物的吸附选择性和吸附动力学进行了初步研究.
이용분자인적기술,제비용우4-갑기미서(4-MI)쾌속검측적고분자재료.이4-갑기미서위모판분자,α-갑기병희산(MAA)위공능단체,우담이이정정(AIBN)위인발제,을이순이갑기병희산지(EDMA)위교련제,재을정중통과침정취합제비료분자인적취합물.용자외분광광도법대4-MI여MAA적상호작용진행료분석,결과표명주객체주요존재형식위,1개4-MI위1개MAA소포위.이용Langmuir수학모형대흡부특성진행료분석,Scatchard도현시인적취합물적최대흡부량Bmax=221.14μmol/g화해흡상수KD=1.8mmol/L.동시대인적취합물적흡부선택성화흡부동역학진행료초보연구.
The polymer used for quick determination of 4-methyl imidazole (4-MI) was prepared by molecular imprinting. The uniformly imprinted polymer microspheres were prepared by precipitation polymerization in acetonitrile, using 4-MI as template, methacrylic acid (MAA) as functional monomer, azobisisobutyronitrile (AIBN) as initiator and ethylene glycol dimethacrylate (EGDMA) as cross-linker. The UV spectrophotometry was used to demonstrate the interaction between 4-MI and MAA. It was found that one 4-MI was entrapped by one MAA molecules, which was the main existing form of subject and object. Langmuir model was used to analyze the adsorption data. The Scatchard chart showed the apparent maximum binding capacity (Bmax) and the dissociation contents (KD) of the imprinted polymer were 221. 14 μmol/g and 1. 8 mmol/L, respectively. The absorption selectivity and absorption kinetics of imprinted polymer were preliminarily studied.