Joel Vargas, Araceli Martínez, A. A. Santiago
Oct 19, 2007
Citations
0
Influential Citations
30
Citations
Journal
Polymer
Abstract
Abstract The new exo - N -3,5-bis(trifluoromethyl)phenyl-7-oxanorbornene-5,6-dicarboximide (TFmPhONDI, 2 ), was synthesized and polymerized via ring opening metathesis polymerization (ROMP) using tricyclohexylphosphine [1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazolilydene][benzylidene] ruthenium dichloride ( I ) to produce the corresponding PTFmPhONDI ( 3 ). Gas permeability, diffusion and solubility coefficients of PTFmPhONDI ( 3 ) were determined by transient permeation for five gases He, CO 2 , O 2 , N 2 and CH 4 . The larger gas permeability and diffusion coefficients of 3 compared to polynorbornene dicarboximides without fluorine pendant groups were attributed to a lower polymer chain packing due to the effect of the CF 3 groups in the lateral phenyl moiety pending at positions 3 and 5.