Polymerization of methyl methacrylate with Ni(acac)2-methylaluminoxane catalyst
β Scribed by Endo, Kiyoshi; Inukai, Akihiro
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 97 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0959-8103
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β¦ Synopsis
Polymerization of methyl methacrylate (MMA) with nickel(II) acetylacetonate [Ni(acac) 2 ] in combination with methylaluminoxane (MAO) was investigated. Ni(acac) 2 was found to be an effective catalyst for the polymerization of MMA. From a kinetic study of the polymerization of MMA with the Ni(acac) 2 Β±MAO catalyst, the overall activation energy was estimated to be 15 kJmol Γ1 . The polymerization rate (R p ) was expressed as follows: R p = k [MMA] 1.0 [Ni(acac) 2 Β±MAO] 0.6 (the MAO/Ni mole ratio was kept constant). The mechanism for the polymerization of vinyl monomers with the Ni(acac) 2 Β±MAO catalyst is discussed.
π SIMILAR VOLUMES
Copolymerization of styrene (St) and butadiene (Bd) with nickel(II) acetylacetonate [Ni(acac) 2 ]-methylaluminoxane (MAO) catalyst was investigated. Among the metal acetylacetonates [Mt(acac) x ] examined, Ni(acac) 2 showed a high activity for the copolymerization of St and Bd giving copolymers havi
## Abstract Poly(methyl methacrylate)(PMMA)/clay nanoβcomposites were successfully prepared by a new method, __in situ__ polymerization initiated with a nickel(II) acetylacetonate [Ni(acac)~2~] catalyst in combination with methylalumoxane (MAO). The synthesized PMMA/clay nanocomposites materials we