Synthesis and gas-separation properties of metathesis poly(3-fluoro-3-pentafluoroethyl-4,4-bis(trifluoromethyl)tricyclonene-7)статья
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Дата последнего поиска статьи во внешних источниках: 18 марта 2017 г.
Аннотация:Metathesis polymerization of 3-fluoro-3-pentafluoroethyl-4,4-bis(trifluorometyl)tricyclononene-7 was performed and the properties of the obtained polymer F-PTCN wereinvestigated. It wasfound that F-PTCN possessed high thermal stability. The gas permeability of F-PTCN (P(O2) = 60 Barrer, P(CO2) = 240 Barrer was close to the parameters of earlier studied two fluorocontaining polynorbornenes. Although a new synthesided metathesis fluorosubstituted polymer was less permeable than a metathesis polytricyclononene containing two Me3Si-groups per a monomer unit, but it had substantially higher values of ideal selectivities for some pairs of gases.