Porous cyclodextrin polymer
AssigneeNanjing University
InventorsXianchuan Xie, Yizhou Tu
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Abstract
The disclosure provides an amphiphilic porous cyclodextrin polymer: cyclodextrin is grafted with aromatic molecules, and then alkylated with biphenyl benzylidene chloride and p-xylylene dichloride through Friedel-Crafts reaction, to obtain a porous polymer with an ultrahigh specific surface area. This material has very high adsorption capacity and can be reused for simple regeneration. Because the hydroxy groups of cyclodextrin are partially retained, the hydrophilicity of the material surface is improved, allowing the adsorption rate to become faster. Moreover, there are a variety of adsorption mechanisms, and hydrophobic and hydrophilic pollutants can be adsorbed simultaneously.
Claims11
A preparation method of an amphiphilic cyclodextrin porous polymer, wherein:
- cyclodextrin is grafted with an aromatic compound, and then crosslinked with an alkylating agent with Lewis acid as the catalyst, wherein
- the BET specific surface area of the cyclodextrin porous polymer, determined by the nitrogen isotherm method, is greater than 1200 m2g−1.
Dependencies are inferred from the claim text.