| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
고분자합성 |
| 제목 |
In situ Synthesis from End-Capping of Living Anionic Polymers for ω-Norbornenyl Macromonomers, and Their Ring-Opening Metathesis Polymerization |
| 초록 |
We report the preparation of ω-norbornenyl macromonomers (MMs) in an in situ manner. End-capping agent (NCXPA) was desingned and synthesized by using exo-norbornene and α-phenyl acrylate for living anionic polymerization. End-capping reaction of NCXPA with living anionic polymers successfully produeced both ω-norbornenyl polystyrene (NCXPS) and poly(methyl methacrylate) (NCXPMMA) with controlled molecular weights and low dispersities (Đ = 1.02-1.07). Ring opening metathesis polymerization (ROMP) of the resulting MMs displayed high end-capping efficiency of MMs (NCXPS ≥96% and NCXPMMA ~70%). ROMP showed the different results dpending on the length of alkyl spacer (NC6PA and NC10PA) and molecular weights (approximately 2, 3, and 5 kDa) of MMs. The longer alkyl spacer (NC10PA) and approximately 2 and 3 kDa of macromonomers afford well-defined bottlebrush polymers (low Đ = 1.02 ~ 1.13). |
| 저자 |
김명진, 이재석, 유용군, 채창근, 서호빈, 박인규, Mallela Y.L.N. Kishore
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| 소속 |
광주과학기술원 |
| 키워드 |
ω-norbornenyl macromonomers; Living Anionic Polymerization; Ring opening metathesis polymerization; End-capping; Brushbottle polymers
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| E-Mail |
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