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Ring-opening metathesis polymerization of Norbornene-derived cyclic olefins using Iminomethyl-hydroxyl-ligated tungsten Complexes: Fast reaction and tunable cis/trans selectivity
- Nayab, Saira;
- Lee, Hyosun;
- Lee, Sang-Ho
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0초록
Highly active tungsten complexes supported by (Z)-1-(((2-hydroxyphenyl)imino)methyl)naphthalen-2-ol (LA) and (Z)-4-chloro-2-(((2-hydroxyphenyl)imino)methyl)phenol (LB) were synthesized and characterized. The ring- opening metathesis polymerization activities were assessed using i Bu 3 Al as the co-initiator at room temperature. A 100% conversion of norbornene to high-molecular-weight polynorbornene (PNB) was obtained within 10 min with tunable cis/trans selectivity of resultant polymer depending on the ligand architecture.
키워드
Tungsten complexes; X-ray structures; Cyclic olefin; Polynorbornene; IMIDO ALKYLIDENE; ROMP; MOLYBDENUM; CATALYST; POLYMERS; BEHAVIOR; MO
- 제목
- Ring-opening metathesis polymerization of Norbornene-derived cyclic olefins using Iminomethyl-hydroxyl-ligated tungsten Complexes: Fast reaction and tunable cis/trans selectivity
- 저자
- Nayab, Saira; Lee, Hyosun; Lee, Sang-Ho
- 발행일
- 2025-01
- 유형
- Article
- 권
- 171
- 페이지
- 1 ~ 4