화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.30, No.3, 205-211, March, 2022
DOI10.1007/s13233-022-0025-9  Export Citation
Synthesis of Thermo-Controlled Cyclic Olefin Polymers via Ring Opening Metathesis Polymerization: Effect of Copolymerization with Flexible Modifier
Jin Young Seo1, 2, Seung Hyun Kang1, 2, Mi Ryu Lee1, 3, Chul-Hwan Choi4, Sang-Ho Lee5, Sangho Cho1, 6, Jung-Hyun Lee2, †, and Kyung-Youl Baek5, †
  • 1Center for Materials Architecturing, Korea Institute of Science and Technology, Seoul 02792, Korea
  • 2Department of Chemical and Biological Engineering, Korea University, Seoul 02481, Korea
  • 3, Korea
  • 4NH Chemical, Ulsan 44987, Korea
  • 5Centers for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology, Ulsan 44412, Korea
  • 6Division of Nano & Information Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Korea
E-mail:,
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 (nbutylnorbornene (nBuNB) and nbutyl-tetracyclododec-4-ene (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 hydrogenated P(DMON0.7-co-nBuDMON0.3) exhibited 155°C of Tg and 402°C of Td,5% as well as excellent optical transmittance (> 91%) in the visible range. Considering these superior thermal stability, optical transparency, and high productivity (190 g L−1), COPs with the flexible modifier were anticipated to be key component materials for future optical applications.
Keywords:cyclic olefin polymer;ring-opening metathesis polymerization;hydrogenation;glass transition temperature;optical transparency
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