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MODIFICATION OF X-5 RESIN AND ADSORPTION PROPERTY OF THE MODIFIED RESINS |
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| Authors: | HUANG Jiangou Xu Mancai LI Haitao SHI Zuoqing HE Binglin |
| Institution: | 1. College of Chemistry and Chemical Engineering, Hunan Normal University,Changsha 410081 2. College of Chemistry and Chemical Engineering, Hunan Normal University,Changsha 410081;The State Key Laboratory of Functional Polymer Materials for Adsorption and Separation,Institute of Polymer Chemistry, Nankai University, Tianjin 300071 3. The State Key Laboratory of Functional Polymer Materials for Adsorption and Separation,Institute of Polymer Chemistry, Nankai University, Tianjin 300071 |
| Abstract: | Three polymeric adsorbents with hydrogen bonding acceptors, methylamine,N-methyl-acetamide and aminotri(hydroxymethyl)methane modified resins are synthesized fromchloromethylated X-5 resin. Adsorption isotherms of phenol and theophylline onto the three modifiedresins and the original X-5 resin from aqueous solution are measured. The results show thatadsorption of compounds with hydrogen bonding donor onto methylamine and N-methylacetamidemodified resins is enhanced as compared with that onto X-5 resin, and adsorption mechanismbetween the adsorbents and the adsorbates is mainly based on hydrogen bonding and hydrophobicinteraction. While adsorption of compounds with hydrogen bonding donor ontoaminotri(hydroxymethyl)methane modified resin is lowered as compared with that onto X-5 resin, andadsorption mechanism between the adsorbent and the adsorbates is mainly based on hydrophobicinteraction. |
| Keywords: | Methylamine N-methylacetamide Aminotri(hydroxymethyl)methane X-5 resin Modification Adsorption Phenol Theophylline Caffeine |
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