Phase diagram prediction of recycling aqueous two-phase systems formed by a light-sensitive copolymer and dextran |
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Authors: | Zhihua Shao Fanqi Kong Xuejun Cao |
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Affiliation: | (1) State Key Laboratory of Bioreactor Engineering, Department of Biochemical Engineering, East China University of Science & Technology, 130 Meilong Rd., Shanghai, 200237, China |
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Abstract: | Our Laboratory has synthesized a novel light-sensitive and recycling copolymer P
NBC
. The P
NBC
copolymer could form recycling aqueous two-phase systems with Dextran. Recycling aqueous two-phase systems have important
application in bioseparation engineering. Phase diagram prediction of the novel aqueous two-phase systems also is an important
aspect in engineering. This article applied the Cabezas model and effective excluded volume (EEV) model to the experimental
data of light-sensitive recycling aqueous two-phase systems. It has been found that the EEV model could consist with experimental
data very well. The maximum absolute error and average absolute error is 0.81% (wt%) and 0.23% (wt%), respectively. |
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Keywords: | Aqueous Two-phase Systems Light-sensitive Polymer Liquid-liquid Equilibria Thermodynamic Models |
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