CJCU

Chem. J. Chinese Universities ›› 1997, Vol. 18 ›› Issue (10): 1724.

• Articles • Previous Articles     Next Articles

The Adsorption of Urea by the Oxidation of a TDI Crosslinked β-Cyclodextrin and Its Composite Adsorbent with Dialytic Membrane

SHI Lin-Qi, LI Zhan-Yong, HE Bing-Lin   

  1. The State Key Laboratory of Functional Polymer Materials for Adsorption and Separation, Insititute of Polymer Chemistry, Nankai University, Tianjin 300071
  • Received:1996-07-10 Online:1997-10-24 Published:1997-10-24

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Abstract: Anovel adsorbent with an aldo structure was obtained by the oxidation of acrosslinked p-cyclodextrin polymer. The highest urea adsorption capacity reached 56 mg/g at 37℃ and PH 7.4. The composite adsorbent was prepared by the oxidation of a TDIcrosslinked β-cyclodextrin resin and dialytic membrane. It was found that the compositeadsorbent has a higher urea adsorption selecitivity and capacity compared to that of theoxidation of a TDIcrosslinked p-cyclodextrin resin when urea is in aqueous human serumalbumin.

Key words: Oxidation of a TDI crosslinked β-Cyclodextrin, Dialytic membrane, Composite adsorbent

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