河北大学学报(自然科学版)

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以苯为原料合成超高交联吸附树脂及其性能

金秋,赵士举,谢普会,苏同福   

  1. 河南农业大学 理学院应用化学系,河南 郑州 450002
  • 发布日期:2015-01-25
  • 通讯作者: 金秋(1975—),女,河南周口人,副教授,博士,主要从事功能高分子研究.
  • 作者简介:金秋(1975—),女,河南周口人,副教授,博士,主要从事功能高分子研究

JIN Qiu, ZHAO Shiju, XIE Puhui, SU Tongfu   

  1. Department of Chemistry, College of science, Henan Agricultural University, Zhengzhou 450002, China
  • Published:2015-01-25

摘要: 以芳香小分子苯为基本原料,氯甲醚为氯甲基化试剂,无水氯化锌和无水三氯化铁为催化剂,一步合成出超高交联吸附树脂BE-CME.利用红外、元素分析和比表面积测定等方法对树脂的结构性能进行了表征.结果表明,树脂BE-CME的比表面积高达812.43m2/g,元素和红外表征结果证明,树脂BE-CME上还残留有部分未反应的氯甲基.对树脂BE-CME进行了二次交联反应,得到比表面积为974.372/mg的超高交联吸附树脂P-BE-CME.以苯胺为吸附对象,考察了树脂BE-CME和P-BE-CME对苯胺的吸附性能,结果表明,树脂后交联以后的吸附性能有所提高,树脂BE-CME和P-BE-CME对苯胺的吸附能力均优于相同条件下的XAD-4.随着温度的升高,树脂的吸附量下降,说明吸附是放热的

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Abstract: Hypercrosslinked resin BE-CME was synthesised in one pot using simple aromatic molecule benzene and chloromethyl methyl ether (CME), using anhydrous ZnCl2 and FeCl3 as catalyst. The chemical structure of resin BE-CME was characterized by IR, elemental analysis and BET methods. The results indicated that the specific surface area of resin BE-CME was 812.43m2/g. The postcrosslinking reaction of BE-CME was carried out use the unreacted chloromethyl group on resin BE-CME. After postcrosslinked the specific surface area of P-BE-CME increased to 974.37m2/g. Batch adsorption runs of aniline in aqueous solution onto adsorbent BE-CME and P-BE-CME were researched. The adsorption capacity of aniline on P-BE-CME was larger than that on BE-CME and XAD-4. The adsorption process for aniline onto the resins was proved to be exothermic

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