| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 가을 (10/11 ~ 10/12, 일산킨텍스) |
| 권호 |
32권 2호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Chromatographic Characterization of Star-shaped Polystyrene |
| 초록 |
Star polymers have different rheological and mechanical properties from their linear analogues. In the molecular level, star polymers have a larger number of chain ends and smaller hydrodynamic size than their linear counterpart of equivalent molar mass. This study is to find a better way of fractionating star polymers according to the molar mass and chain architecture including number of branches and branch length. Interaction chromatography (IC) can be effective for the purpose while conventional size exclusion chromatography (SEC) is not. Model star-shaped polystyrenes are prepared by anionic polymerization of styrene and subsequent linking of the polystyryl anions by divinyl benzene. Star-shaped polystyrenes are characterized in detail by combination of SEC and IC separations coupled with multiple detections. |
| 저자 |
이세경, 임규현, 정주은, 안선영, 장태현
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| 소속 |
포항공과대 |
| 키워드 |
star polymer; chromatography
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| E-Mail |
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