| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
고분자 합성 |
| 제목 |
Synthesis of poly(2-(2-(4-vinylphenyl)ethynyl)pyridine) by living anionic polymerization |
| 초록 |
The monomer, 2-(2-(4-vinylphenyl)ethynyl)pyridine (VPEPy), synthesized by sonogashira coupling reaction was anionically polymerized. Anionic polymerization of VPEPy was successful by using only (diphenylmethyl)potassium (DPM-K) without side reaction during course of polymerization. The resulting polymers all possessed the predictable molecular weights and the narrow molecular weight distributions (Mw/ Mn = 1.06 1.09). Yields of polymers were always quantitative. The polymers were characterized by 1H and 13C NMR. The molecular weights and molecular weight distributions of the synthesized polymers were determined by size exclusion chromatography (SEC). The block copolymers of VPEPy with styrene and 2-vinylpyridine (2VP) were synthesized quantitatively by sequential anionic polymerization to estimate the reactivity of VPEPy and to find its living nature. The resulting block copolymers of poly(VPEPy)-b-poly(2VP) showed micro-phase separation in THF as observed from TEM. |
| 저자 |
강범구, 이재석
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| 소속 |
광주과학기술원 신소재공학과 / Program for Integrated Molecular System (PIMS) |
| 키워드 |
living anionic polymerization; predictable molecular weight; narrow molecular weight distribution; reactivity; phase separation
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| E-Mail |
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