| 학회 |
한국화학공학회 |
| 학술대회 |
2001년 봄 (04/27 ~ 04/28, 연세대학교) |
| 권호 |
7권 1호, p.797 |
| 발표분야 |
분리기술 |
| 제목 |
다공성 유리구슬과 실리카입자 표면변형체로서 베타 사이크로 덱스트린의 활용 |
| 초록 |
Mesoporous glass beads and 5 m silica particles were modified with beta-cyclodextrin (beta-CD) by means of directly bonding, linking spacer group, and cross-linking agent. The selectivities of the beta-CD modified silica particles were measured using a simple column chromatography to separate a model mixture of 1- and 2-hydroxynaphthalene (naphthols) and ortho, meta, and para-xylene. In the packed column chromatography experiments, two major controlling factors (inclusion complex formation effect and steric hindrance effect of the analytes) on the separations were observed. The selectivity of the beta-CD directly bonded glass beads having the elution order ortho>para>meta-xylene; 2-naphthol>1-naphthol. The phenomena of beta-CD pore blocking and narrowing by spacer groups and cross-linking agent were observed. The spacer group and cross-linking agent decreased inclusion complex formation of para-xylene and increased that of ortho-xylene. |
| 저자 |
김만회1, 더글라스 웨이2, 로버트 볼드윈
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| 소속 |
1공군사관학교 화학과, 2콜로라도 스쿨 오브 마인스 화공과 |
| 키워드 |
cyclodextrin; silica; chromatograph; separation; cross-linking
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