| 학회 |
한국공업화학회 |
| 학술대회 |
2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
26권 1호 |
| 발표분야 |
포스터-고분자 |
| 제목 |
Synthesis of Thermo-controlled Cyclic Olefin Polymers via Ring Opening Metathesis Polymerization: Effect of Copolymerization with Flexible Modifier |
| 초록 |
Cyclic olefin polymers (COPs) have gained attention as key components of future engineering plastics. Herein, we synthesized thermally stable COPs with high flexibility and optical transparency utilizing an industrially available WCl6/iBu3Al/EtOH catalyst system. The strategically designed cyclic monomers with flexible butyl group (nBuNB and nBuDMON) (flexible modifier) and commercially available tetracyclic monomer (DMON) were copolymerized via Ring Opening Metathesis Polymerization (ROMP). Thereafter, the double bonds of the resulting polymer backbone were saturated by hydrogenation. The obtained series of COPs by changing the molar ratio of DMON and the flexible modifier showed not only various glass transition temperatures (Tg) ranged from 80 to 155 °C but also constantly high degradation temperatures (Td,5%) around 300 °C. The representative H-P(DMON0.7-co-nBuDMON0.3) exhibited 155 °C of Tg as well as excellent optical transmittance (> 91%) in the visible range. |
| 저자 |
서진영, 오현지, 조상호, 백경열
|
| 소속 |
한국과학기술(연) |
| 키워드 |
Cyclic olefin polymer; ring-opening metathesis polymerization; hydrogenation; optical transparency
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| E-Mail |
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