| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 봄 (04/07 ~ 04/08, 대전컨벤션센터) |
| 권호 |
36권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Preparation and characterization of ion exchange beads using SAS-co-PEGDA copolymer |
| 초록 |
The copolymer microsphere (SAS-co-PEGDA) was synthesized by suspension polymerization based on sodium allyl sulfonate (SAS) and poly(ethylene glycol) diacrylate (PEGDA). Immersing the microsphere in sulfuric acid was performed to introduce protons instead of sodium ion. The chemical structures of the microsphere were characterized by their FT-IR. The broad band occurring at around 3400 cm-1 attributed to hydrogen bonding and OH single vibration peak from SO3H group. The band at 1250-1150 cm-1 can be ascribed to stretching vibration for S=O, and the absorption band at 1060-1030 cm-1 is assigned to the symmetrical O=S=O stretching band because of the stretching vibrations of the sulfonic group in SAS. The basic properties of microsphere such as water uptake, ion exchange capacity (IEC) were measured. The surface morphology obtained by SEM showed the pore and sphere approximately. The IEC value increased with increasing SAS mole ratio due to ionic group (-SO3H). |
| 저자 |
구진선, 황택성
|
| 소속 |
충남대 |
| 키워드 |
ion-exchange bead; emulsion polymerization; sodium allyl sulfonate; crosslinking
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| E-Mail |
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