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Synthesis of Sulfonated Hollow PP-g-Styrene Fibrous Ion-exchange Membrane and Separation of BSA Protein  

황택성 (충남대학교 공과대학 화학공학과)
이진혁 (충남대학교 공과대학 화학공학과)
Publication Information
Polymer(Korea) / v.26, no.4, 2002 , pp. 415-421 More about this Journal
Abstract
A sulfonated PP-g-styrene ion-exchange hollow fiber membrane was prepared by pre-irradiation method with E-beam followed by sulfonation reaction. Degree of grafting increased with the increase of styrene monomer concentration and showed the maximum value of 128% at 80% of styrene monomer composition. Sulfonation yield increased with the degree of grafting. At 100% degree of grafting, sulfonation yield showed the maximum value of 13.4%. Ion exchange capacity of sulfonated HPP-g-styrene of 3.42 meq/g was attained, resulting in the remarkable increase of adsorption ability BET analysis proved that the surface area of sulfonated HPP-g-styrene was 62.54 $m^2/g$ and the mean pore size was 25 $\AA$. From the BSA adsorption experiments, the adsorption amount of BSA was increased with sulfonation. At 13.4% sulfonation yield the adsorption amount of BSA was maximum as 3.8 mg/g. Sulfonated HPP-g-styrene was synthesized successfully and suitable for the adsorption and separation of BSA.
Keywords
hollow fiber; E-beam; pre-irradiation; graft polymerization; sulfonation; BSA;
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