| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Controlling Graphene Wrinkles using the Phase Transition of a Low Critical Solution Temperature Polymer |
| 초록 |
A novel method for controlling reduced graphene oxide (rGO) wrinkles through a phase transition in a solution using a low critical solution temperature (LCST) polymer dispersant has been developed. The polymer dispersant is designed by control of architecture and composition using RAFT polymerization. Synthesized poly(2-(dimethylaminoethyl) methacrylate-block-styrene) (PDbS) can be successfully functionalized on the rGO surface via noncovalent functionalization. PDbS-functionalized rGO (PDbS–rGO) exhibits good dispersibility in an aqueous phase and forms wrinkles on the PDbS–rGO surface because of phase transition at the LCST behavior. The formation of PDbS–rGO wrinkles is controlled by varying the aggregation number of the polymer dispersant on the PDbS–rGO surface that depends on temperature. This is confirmed by TEM, SEM and Raman spectroscopy. Also, the mechanism of wrinkle control is proved by gold nanoparticles that are grown in polymer dispersant on the PDbS–rGO surface. |
| 저자 |
권민호1, 양지연1, 김한영1, 주혜영1, 주상우2, 이영실3, 이혜정4, 정승열4, 한종훈5, 백현종1
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| 소속 |
1부산대, 2숭실대, 3금오공과대, 4한국전기(연), 5충남대 |
| 키워드 |
graphene; low critical solution temperature; phase transition; polymer dispersant; wrinkle control
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| E-Mail |
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