首先以间苯二胺为模板分子,通过与3一异氰酸丙丛三乙筑柴硅烷反应合成含模板分子的功能性单休,其化学结构经红外光谱、质谱和核磁共振谱等表征于段-i=lE实。进一步加入交联剂叫乙轼挂硅烷(TEOS)合成分子印迹杂化物(MIH),并对该杂化物的形成机理进行探索。另外,通过测定杂化物对模板分子等温吸附容量和竞争性吸附容量,研究杂化物的吸附性能和选择性识别能力。MIH对间苯二胺分了的最大吸附容量为7.42mg/g,而非分子印迹杂化物(NIH)的最大吸附容量为3.20mg/g。MIH对间苯二胺的结构类似物苯胺和2,4,6~三溴苯胺的北特异性吸附容量很小,仅分别为1.99和0.98mg/g,且NIH的这些值与MIH的相接近。l:述结果表H月间苯二胺的MIH对间苯二胺具有良好的吸附能力和吸附选择性。
The functional monomer that containing the template was synthesized from m-phenylenediamine as template molecule and 3-(triethoxysilyl)propyl isocyanate, followed by cross-linking using tetraethoxysilicone (TEOS) as cross-linking agent and removing template molecule to obtain the molecularly imprinted hybrid (MIH). The chemical structures of the functional monomer and MIH obtained were proved by means of FT-IR, ESI-MS, 1H NMR and the 14C ads NMR. The adsorption isotherm and competitive adsorption properties of the MIH were measured, and then orption capacity and seletive recognition ability were investigated. The equilibrium adsorption capacity of MIH to m-phenylenediamine reached 7.42 mg/g, while that of the non-imprinted hybrid (NIH) was 3.20 mg/g. The adsorption capacity of MIH for aminobenzene and 2,4,6-tribromoaniline as template analogues was on 0.98, respectively, and these of NIH were almost the same as MIH. It was concluded that MIH had high ability and recognition selectivity to m-phenylenediamine ly ad 1.99 and sorptlon