| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 가을 (10/09 ~ 10/10, 일산킨텍스) |
| 권호 |
33권 2호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Electrochemical characterization of polyelectrolyte brush |
| 초록 |
Poly(methacryloyloxy)ethyltrimethyl-ammonium chloride (PMETAC) brushes were synthesized on Au substrates via ATRP followed by ion-exchange with ferricyanide ions ([Fe(CN)6]3-) as stable redox probes. Electrochemical behaviors of polyelectrolyte brushes with immobilized electroactive counterions in response to external changes in concentration and composition of the supporting electrolyte and as a function of brush thickness were investigated. The PMETAC brushes with ([Fe(CN)6]3) were also used as the electrochemically addressable surface. By alternatingly applying a negative and positive potential, PMETAC brushes were switched reversibly between the reduced state ([Fe(CN)6]4) and oxidized state ([Fe(CN)6]3), resulting in reversible changes in water contact angles. |
| 저자 |
최은영1, Wilhelm T. S. Huck2
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| 소속 |
1한국과학기술원, 2Department of Chemistry |
| 키워드 |
polyelectrolyte brush; electrochemisty
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| E-Mail |
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