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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
被引:0
|作者:
Nayab, Saira
[1
,2
]
Lee, Hyosun
[2
]
Lee, Sang-Ho
[3
]
机构:
[1] Shaheed Benazir Bhutto Univ, Dept Chem, Sheringal Dir U 18050, Khyber Pakhtunk, Pakistan
[2] Kyungpook Natl Univ, Green Nano Mat Res Ctr, Dept Chem, 80 Daehakro, Daegu 41566, South Korea
[3] Dongguk Univ, Dept Chem & Biochem Engn, Seoul 04620, South Korea
基金:
新加坡国家研究基金会;
关键词:
Tungsten complexes;
X-ray structures;
Cyclic olefin;
Polynorbornene;
IMIDO ALKYLIDENE;
ROMP;
MOLYBDENUM;
CATALYST;
POLYMERS;
BEHAVIOR;
MO;
D O I:
10.1016/j.inoche.2024.113580
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
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.
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