| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
38권 2호 |
| 발표분야 |
기능성 고분자 (포스터발표만 진행) |
| 제목 |
Direct Synthetic Route for Water-dispersible Polythiophene Nanoparticles via Surfactant-free Oxidative Polymerization |
| 초록 |
Water-dispersible poly(thiophene-co-3-thiopheneacetic acid) (PThTA) nanoparticles were successfully prepared by Fe3+-catalyzed oxidative polymerization in the absence of surfactant. This facile method adopted the recyclable FeCl3/H2O2 initiator couple to yield a high conversion approximately 97%. The particle growth of PThTA were studied by measuring photoluminescence (PL) spectra intensity and time-evolution variation of particle number in the early period of polymerization. The final average particle size of PThTA was 315nm, measured by dynamic light scattering (DLS). The number-average molecular weight of PThTA was about 2×104g/mol. The light emitting properties of PThTA nanoparticles in emulsion state was studied by measuring UV-vis absorption and PL spectra, and it was found that the quantum efficiency increased from 1.43% to 3.22% with polymerization time at an excitation wavelength of 405 nm. |
| 저자 |
류현욱1, 김용석1, 정인우2, 김중현1
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| 소속 |
1연세대, 2경북대 |
| 키워드 |
Polythiophene; Oxidative Polymerization; Nanoparticles; Emulsifier-free
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| E-Mail |
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