Synthesis of polar vinyl monomer-olefin copolymers by α-diimine nickel catalyst
| Autor: | João F. Mano, Marvin D. Rausch, Alberto R. Dias, Maria M. Marques, Sandra G. Correia, Susete N. Fernandes, Susana Caroço, Pedro T. Gomes, James C. W. Chien |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Materials science
Polymers and Plastics Organic Chemistry Methylaluminoxane 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Vinyl polymer 0104 chemical sciences 3. Good health chemistry.chemical_compound chemistry Polymerization Methyl vinyl ketone Polymer chemistry Materials Chemistry Vinyl acetate Copolymer Acrylonitrile Methyl methacrylate 0210 nano-technology |
| Zdroj: | Polymer International. 50:579-587 |
| ISSN: | 0959-8103 |
| DOI: | 10.1002/pi.669 |
| Popis: | Vinyl acetate, methyl methacrylate, acrylonitrile and methyl vinyl ketone were investigated for co- and terpolymerization with ethylene and ethylene–propylene. Precursor [bis(N,N ′-dimesitylimino)acenaphthene]dibromonickel, activated by methylaluminoxane was used as a catalyst system and trialkylaluminium was employed to block the polar groups for these polymerizations. Polymerization activities of the order of magnitude of 106 in the case of vinyl acetate and methyl methacrylate, and 105 in the case of acrylonitrile were achieved. Microanalysis and GPC of acrylonitrile copolymers found about 17 units of acrylonitrile per polymer chain. Copolymers with very different properties from the parent homopolymers were obtained in all cases except that of methyl vinyl ketone. © 2001 Society of Chemical Industry |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text