Metathesis-type poly-exo-tricyclononenes with fluoroorganic side substituents: Synthesis and gas-transport properties
作者： G.O. Karpov , M.V. Bermeshev , I.L. Borisov , S.R. Sterlin , A.A. Tyutyunov
DOI: 10.1016/J.POLYMER.2018.08.055
关键词:
摘要: Abstract The synthesis and gas-transport properties of new metathesis-type polynorbornenes bearing fluoroorganic side groups are reported. necessary monomers, fluorosubstituted exo-norbornene derivatives (exo-tricyclononenes), were obtained using one-step method based on stereo- regioselective [2 + 2+2]-cycloaddition quadricyclane fluoroalkenes. A set high molecular weight polymers with different prepared from the synthesized F-substituted exo-tricyclononenes over 1-st generation Grubbs catalyst. Permeability diffusion coefficients various gases (He, H2, O2, N2, CO2, CH4) in these poly-exo-tricyclononenes determined for first time relationships between polymer structure gas permeability established. Metathesis poly-exo-tricyclononene four CF3-groups each monomer unit displayed highest tested among metathesis F-organic substituents reported so far.
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