间胺基苯基醚超高交联吸附树脂的合成及其吸附性能.doc

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摘要：本文综述了分子印迹技术（molecular imprinting technology，MIT）的基本理论、制备技术及其应用研究进展。研究了胺基和悬挂醚键共同修饰的超高交联吸附树脂PEA从水溶液及环己烷溶液不同体系中吸附2,6-二甲基萘(2,6-DMN)和β-萘酚混合吸附质的静态吸附行为，并讨论PEA对β-萘酚的吸附选择性。采用静态吸附，扫描电镜和红外光谱对制备的聚合物进行表征。研究内容和结论如下：

    1、将苯乙烯与二乙烯苯混合在一起作为单体，过氧化苯甲酰作为反应的引发剂，制得的树脂进行氯甲基化得到氯球，再把间羟基苯胺溶解于四氢呋喃一起加入到氯球中，得到超高交联吸附树脂。

   2、水溶液中静态吸附的结果表明，PEA树脂对2,6-DMN和β-萘酚均有一定的吸附量，低温有利于吸附表明两个过程均以物理吸附为主，但对β-萘酚的吸附伴随有化学吸附。2,6-DMN和β-萘酚在PEA树脂上的吸附等温线均符合Freundlich方程，且苯胺的吸附还符合Langmuir方程；所有等温吸附方程的相关因子R均大于0.98；Freundlich方程拟合β-萘酚中的指数因子n﹥1，属于优惠吸附。

   3、PEA树脂对β-萘酚的选择系数随初始浓度的增大而减小，随温度的升高而增大，主要是受树脂表面官能团、氢键的形成和化学吸附的存在影响。选择系数在pH为6.0左右时到达最大值，β-萘酚在溶液中的 值、氢键的形成以及竞争吸附为主要影响因素。

关键词：分子印迹  吸附树脂  选择性  苯乙烯

Preparation and adsorptive property of hypercrosslinked adsorbent modified by amino phenyl ether

Abstract：This article reviews the basic theory of molecular imprinting technology and its preparation method and application progress. Studying the amino and suspension ether bond together modified hypercrosslinked adsorption resin PEA adsorbs 2,6-Dimethylnaphthalene（2,6-DMN）and static adsorption behavior of β-naphthol mixed adsorbate solution and cyclohexane solution from a different system, and discusses PEA β-naphthol for selective adsorption. Using static adsorption, scanning electron microscopy and infrared spectroscopy to characterize polymer prepared.Studies and conclusions are as follows: 

1.Styrene and divinylbenzene are mixed as monomer,Benzoyl peroxide as a reaction initiator. The resulting resin are chloromethylated to chloride ball.Then adding the Bt-hydroxyanil dissolved in tetrahydrofuran to the chlorine ball to hypercrosslinked adsorption resins.

2.The results of static adsorption in aqueous solution shows that PEA resin have a adsorption certain amount of 2,6-DMN and β-naphthol. Low temperatures favors adsorption shows two processes are mainly physical adsorption. However, the adsorption of β-naphthol is accompanied by chemical adsorption.2,6-DMN and β-naphthol in the PEA resin adsorption isotherms are according to the Freundlich equation, and the adsorption of aniline is also according to Langmuir equation; All the relevant factors R of isotherms equation are greater than 0.98;Freundlich equation fits the exponential factor n> 1 in the β-naphthol , are preferential adsorption.

3.PEA resin selection coefficient to β-naphthol decreases with initial concentration increasing and increases with temperature increasing. It is mainly affected by the presence of the functional groups on the resin surface, hydrogen bonding and the existence of chemical adsorption. when PH is about 6,the selective coefficient reaches to maximum, β-naphthol  value in the solution, forming of hydrogen bonds, and the competitive adsorption are the main factors.

Key words:  Molecular imprinting  Adsorption resin  Selectivity  Styrene