(Anilino)anthraquinone Nickel‐Catalyzed Random Copolymerization of Norbornene and Ethylene. Issue 3 (18th December 2017)

• Record Type: Journal Article
• Authors: Cheng, Hailong; Cai, Zhengguo
• Is Part Of: ChemCatChem. Volume 10:Issue 3(2018)
• Page Start: 497
• Page End: 500
• Publication Date: 2017-12-18
• Subjects: alkenes -- copolymerization -- nickel -- N, O ligands -- norbornene; Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.201701418
• Languages: English
• ISSNs: 1867-3880

Abstract

Abstract: Nickel complexes bearing an (anilino)anthraquinone ligand with different electron‐donating substituents were synthesized and shown to have unique properties for the random copolymerization of norbornene with ethylene. The nickel catalysts exhibited high activity (380–750 kg mol −1 h −1 ) and thermal stability in the production of cyclic olefin copolymers (COCs). The norbornene content of the obtained COCs could be controlled over a wide range (63.7–92.2 mol %) by changing the comonomer concentration in the feed. The glass transition temperature value increased linearly from 182 to 322 °C as a function of the norbornene content regardless of the nickel complex used. Abstract : A nickel for your thoughts : The random copolymerization of norbornene with ethylene is achieved by using (anilino)anthraquinone nickel catalysts with high activity and thermal stability to give cyclic olefin copolymers with a controlled norbornene content and a wide range of glass transition temperatures.