| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Polymer length dependent Energy Transfer in Block Copolymers Anchored Two-Dimensional MoS2 |
| 초록 |
MoS2 nanosheets (NSs) are widely used for optical and bio applications due to a photothermal (PT) property and long-distance fluorescence quenching property. Therefore, surface modification of MoS2 NSs with dye-dangling polymers would seem to represent a simple approach to achieve the conformational information of polymer chains by monitoring the FRET efficiency. We presented a fluorescent, thermo-responsive block copolymer grafted MoS2 (BCP-MoS2) to retain dynamic change of polymer behaviors through PT heating. Distance dependent FRET efficiency was studied according to the molecular weight and areal chain density of polymers. The relationship between thermally-responsive FRET and polymer behavior of BCP-MoS2 was theoretically calculated and elucidated by measurements of time-resolved fluorescence. Consequently, we could first suggest the FRET distance between organic dye block and MoS2 NS and find optimum condition of grafting polymers to maximize the FRET activation. |
| 저자 |
박찬호1, 이준혁1, Kin Liao2, 김범준1
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| 소속 |
1KAIST, 2Khalifa Univ. |
| 키워드 |
Poly(NIPAM); block copolymer; photothermal heating; FRET; MoS2
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| E-Mail |
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