Manganese complexes with different ligand environments in the polymerization of methyl methacrylate and styrene
| Autor: | L. N. Gruzdeva, N. A. Shtel´tser, Dmitry F. Grishin, E. V. Kolyakina, A. Z. Kreyndlin |
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| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Ligand technology industry and agriculture macromolecular substances 02 engineering and technology General Chemistry Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences 0104 chemical sciences Styrene chemistry.chemical_compound Monomer chemistry Polymerization Polymer chemistry Copolymer Molar mass distribution Methyl methacrylate 0210 nano-technology |
| Zdroj: | Russian Chemical Bulletin. 66:1078-1087 |
| ISSN: | 1573-9171 1066-5285 |
| Popis: | Polymerization of methyl methacrylate and styrene in the presence of manganese cyclopentadienylcarbonyl complexes containing π-alkene (methyl methacrylate), vinylidene, and allenylidene ligands was investigated. It was found that metal complex ligand environment plays a key role in the initiation of the polymerization and in the regulation of the molecular weight characteristics of synthesized polymers. In particular, the manganese complexes with cumulenylidene ligands are capable to initiate spontaneously polymerization of vinyl monomers. The process of polymerization proceeds to high conversions (over 90%), and the resulting polymers are characterized by high values of molecular weight and relatively broad molecular weight distribution. |
| Databáze: | OpenAIRE |
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