| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
고분자 합성 |
| 제목 |
A unique Synthetic Methodology via Living Anionic Polymerization for Concurrent Synthesis of Linear and Radial Block copolymers of Styrene and Isoprene |
| 초록 |
A unique methodology was applied for the synthesis of three different block copolymers, di-, tri-, and three-armed star-block of styrene and isoprene via living anionic polymerization by controlling the molar ratios of initiator to a novel coupling agent. During the polymerization process, well defined linear and radial block copolymers at room temperature with almost 100% yield resulted, when the living di-block of poly(styrene-b-isoprene) was coupled using malonyl chloride. The individual block copolymers illustrate narrow polydispersity index (PDI=1.01-1.05) and the calculated and observed molecular weights are in good agreement. This was also confirmed by fractionation of the various block copolymers by reversed-phase temperature gradient interaction chromatography (RP-TGIC) technique and size exclusion chromatography (SEC). The results of these highly interesting findings will be highlighted in the presentation. |
| 저자 |
산토쉬 쿠마르1, 샤1, 강범구1, 민준근1, 안선영2, 황운성3, 성익경3, 장태현2, 이재석1
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| 소속 |
1광주과학기술원 신소재공학과 / Program for Integrated Molecular System (PIMS), 2포항공대, 3코오롱 |
| 키워드 |
Living anionic polymerization; Reversed-phase temperature gradient interaction chromatography (RP-TGIC); Linear and radial block copolymer
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| E-Mail |
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