The Liquid-Solid Phase Transition Characteristic and Protein Binding Property of Composite Cryogel with Embedded Cellulose Beads

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Poly (hydroxyethyl methacrylate)-based composite cryogel with embedded macroporous cellulose beads (pHEMA-CB cryogel) could be of interest as chromatographic medium for bioseparation applications. In this work, liquid-solid phase transition characteristic of the suspension mixture containing HEMA, poly (ethylene glycol) diacrylate (PEGDA), ammonium persulfate (APS), N,N,N',N'-tetramethylethylenediamine (TEMED) and cellulose beads for the production of pHEMA-CB composite cryogel was investigated to reveal the solvent crystallization process occurring in the column. Freezing curves were obtained and the values of initial solvent crystallization temperature Tc and the freezing point temperature Tmc were estimated. Protein binding property of the pHEMA-CB cryogel grafted with (vinylbenzyl) trimethylammonium chloride (VBTAC) was measured and discussed.

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Advanced Materials Research (Volumes 781-784)

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783-786

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September 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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