期刊
DOKLADY CHEMISTRY
卷 479, 期 -, 页码 49-52出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0012500818040031
关键词
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资金
- Russian Science Foundation [17-19-01595]
- Russian Science Foundation [17-19-01595] Funding Source: Russian Science Foundation
New high-performance catalytic systems based on Pd N-heterocyclic carbene complexes for the selective addition polymerization of 5-ethylidene-2-norbornene (ENB) were proposed. With these catalysts, polymerization can be conducted at unprecedentedly high monomer/catalyst ratio (up to 5 x 10(5)/1) and gives high-molecular-weight soluble polymers with good film-forming properties. Varying the polymerization conditions (reaction temperature, monomer and catalyst concentrations, monomer/Pd ratio) makes it possible to prepare soluble ENB-based addition polymers with specified molecular weights in reasonable yields.
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