Journal
MACROMOLECULAR CHEMISTRY AND PHYSICS
Volume 219, Issue 24, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.201800323
Keywords
addition polymerization; dicyclopentadiene; norbornenes; Pd-N-heterocyclic carbene complex; porous materials
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Funding
- Russian Science Foundation [17-19-01595]
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Herein for the first time addition homopolymerization of dicyclopentadiene (DCPD) and its copolymerization with 5-n-hexylnorbornene in the presence of different Pd-N-heterocyclic carbene complexes activated by a borate (Na+[B(3,5-(CF3)(2)C6H5)(4)](-) (NaBARF)) or methylaluminoxane (MAO) are investigated. It is found that systems based on Pd-N-heterocyclic carbene complex in combination with NaBARF or MAO are effective catalysts and a Pd-N-heterocyclic carbene complex/NaBARF system allows for the addition polymerization of these monomers in air. The influence of the N-heterocyclic carbene structure, the nature of cocatalyst, and solvent on the catalyst activity of a system based on Pd-N-heterocyclic carbene complex are determined. The properties of the obtained addition polydicyclopentadiene (poly(DCPD)) such as thermal stability, solid-state structure, and porosity are studied. The synthesized poly(DCPD) possesses Brunauer, Emmett, and Teller surface area as high as 155 m(2) g(-1) and so addition polymerization of DCPD can be considered as a single-step and convenient way to synthesize of porous polymers from a norbornene derivative.
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