化工进展 ›› 2016, Vol. 35 ›› Issue (10): 3258-3262.DOI: 10.16085/j.issn.1000-6613.2016.10.033

• 材料科学与技术 • 上一篇    下一篇

多胺型聚苯乙烯树脂的合成及对Cu2+的吸附性能

孟启, 吕科翰, 夏丰敏, 倪梦燚   

  1. 常州大学石油化工学院, 江苏 常州 213164
  • 收稿日期:2016-02-23 修回日期:2016-03-12 出版日期:2016-10-05 发布日期:2016-10-05
  • 通讯作者: 孟启(1965-),男,博士,教授,从事有机合成及化工清洁化研究。E-mail:mengqi@cczu.edu.cn
  • 作者简介:孟启(1965-),男,博士,教授,从事有机合成及化工清洁化研究。E-mail:mengqi@cczu.edu.cn。
  • 基金资助:
    江苏省高校自然科学重大基础研究项目(08KJA430001)。

Synthesis of polyamine-type polystyrene resin and its adsorption property for Cu2+

MENG Qi, LÜ Kehan, XIA Fengmin, NI Mengyi   

  1. Petrochemical Institute of Changzhou University, Changzhou 213164, Jiangsu, China
  • Received:2016-02-23 Revised:2016-03-12 Online:2016-10-05 Published:2016-10-05

摘要: 以聚苯乙烯树脂为起始原料,经氯乙酰化后与四乙烯五胺反应,合成了一种含四乙烯五胺功能基的多胺型聚苯乙烯树脂。考察了溶剂、物料比、时间和温度等反应条件对树脂合成的影响,研究了树脂对Cu2+的吸附性能。结果表明,合成反应在THF溶剂中室温即可顺利进行,所得树脂全交换容量为7.45mmol/g。树脂对Cu2+的吸附可以用准二级动力学方程来描述,液膜扩散为吸附主要控制步骤,吸附符合Langmuir等温方程,为单分子层吸附,饱和吸附量为46.15 mg/mL。对于Cu2+、Ni2+混合溶液,该树脂可以选择性吸附其中Cu2+

关键词: 四乙烯五胺, 树脂, 合成, 吸附, 铜离子

Abstract: A polyamine-type polystyrene resin with tetraethylenepentamine functional group was synthesized from polystyrene resin through chloroacetylation followed by the amination of tetraethylenepentamine. Effects of reaction solvent,mole ratio of raw materials,time and temperature were discussed. The adsorption property of the polyamine-type polystyrene resin for Cu2+ was also studied. The results show that the synthetic reactions can take place smoothly in THF at room temperature and the complete exchange capacity of the synthesized resin is 7.45 mmol/g. The adsorption processes of Cu2+ can be described by pseudo-second order kinetic equation. The main control step of resin adsorption for Cu2+ is governed by liquid film diffusion. The adsorption of Cu2+ belongs to the Langmuir adsorption model and was valid for single-layer adsorption. The saturated adsorption capacity of the synthesized resin toward Cu2+ is 46.15mg/mL. The Cu2+ can be removed selectively from the mixed solution of Cu2+ and Ni2+ by the synthesized resin adsorption.

Key words: tetraethylenepentamine, resin, synthesis, adsorption, copper ion

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