科研之友
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摘要
Preparation and properties of anion-exchange membranes for Donnan dialysis of borates were described. It was shown that grafting of polyethyleneimine to surface of Celgard 2500 membrane resulted in preparation of well-permeable membranes. Fluxes of NaCl and Na2SO4 through new membranes were larger than flux of the same salts across commercial FumaTech anion-exchange membranes. However, the collapse of polyethyleneimine chains, generated by higher ionic strength of solution, caused poor selectivity of the grafted membranes and their malfunctioning in the Donnan dialysis process.
- 出版日期2013-2-1
