| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
고분자가공/복합재료-자가치유 고분자와 복합소재 |
| 제목 |
Highly-Luminescent Block Copolymer Particles Driven by Thermally-Reduced Graphene Quantum Dot Surfactants |
| 초록 |
We report the use of highly luminescent graphene quantum dots (GQDs) as efficient surfactants to produce Pickering emulsions and novel colloid-based materials. To generate the GQD surfactants, the surface properties non-reduced GQDs (nGQDs) which have strong hydrophilicity, were synthesized and modifed by the thermal reduction of oxygen-containing groups at different treatment times. In stark contrast to the behavior of the nGQDs, thermally-reduced GQDs (rGQDs) can produce highly-stable Pickering emulsion of oil-in-water systems. To demonstrate the versatility of the rGQDs surfactants, they were applied in a mini-emulsion polymerization system. In addition, the use of rGQD surfactants can be extended to generating block copolymer particles. Particularly, the BCP particles were highly luminescent, a characteristic produced by the highly-fluorescent GQD surfactants, which has great potential for various applications, including bio-imaging and optoelectronic devices. |
| 저자 |
양현승, 강동진, 구강희, 조한희, 박찬호, 이준혁, 김범준
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| 소속 |
KAIST |
| 키워드 |
Pickering emulsion; block copolymer particle; graphene quantum dots
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| E-Mail |
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