Effects on gas transport

Jiang Y., Virkar A.V., 2003. Fuel composition and diluent effect on gas transport and performance of anode-supported SOFCs. Journal of the Electrochemical Society 150(7), A942-A951. 

Massman, J., and Farrier, D. F. (1992). Effects of atmospheric pressures on gas transport in the vadose zone. Water Resources Research, 28(3), 777-791. 

Figure 2.24 Correlation of the oxygen permeability coefficient for a family of related polysulfones with inverse fractional free volume (calculated using the Bondi method) [33]. Reprinted with permission from C.L. Aitken, W.J. Koros and D.R. Paul, Effect of Structural Symmetry on Gas Transport Properties of Polysulfones, Macromolecules 25, 3424. Copyright 1992, American Chemical Society...

Park HB, Jung CH, Kim YK, et al., Pyrolytic carbon membranes containing silica derived from poly(imide siloxane) The effect of siloxane chain length on gas transport behavior and a study on the separation of mixed gases, J. Mem. Sci. 2004 235 87—98. 

Presently, the amount of data on transport in uniaxially oriented amorphous polymers is small in comparison with that of semicrystalline materials. The transport properties of oriented natural rubber (22), polystyrene (i3.,ii), polycarbonate (22.), and polyvinyl chloride (22,22) among others have been reported. One of the more complete descriptions of the effects of uniaxial orientation on gas transport properties of an amorphous polymer is that by Wang and Porter (34) for polystyrene. 

Micro- and Nanoscale Gas Dynamics Roughness Effect on Microscale Transport w Supersonic Micro-nozzles... 

Chng, M.L., Xiao, Y., Chung, T.S., Toriida, M. and Tamai, S. 2007. The effects of chemical structure on gas transport properties of polyfaryl ether ketone) random copolymers. Polymer 4S 311-317. 

Shao, L., Chung, T.-S., Goh, S.H. and Pramoda, K.P. 2005b. The effects of l,3-cyclohexanebis(methylamine) modification on gas transport and plasticization resistance of polyimide membranes. 267 78-89. 

H.-Y. Zhao, Y.-M. Cao, X.-L. Ding, M.-Q. Zhou, Q. Yuan, Effects of cross-linkers with different molecular weights in cross-linked Matrimid 5218 and test temperature on gas transport properties, J. Membr. Sci., 323, 176-184 (2008). 

T. Suzuki, Y. Yamada, Effect of end group modification on gas transport properties of 6FDA-TAPOB hyperbranched polyhmde-sifica hybrid membranes, High Perform. Polym., 19, 553-564 (2007). 

S. Ghosh, D. Bera, P. Bandyopadhyay, S. Banerjee, Effect of introduction of cardo cyclohexylidene moiety on gas transport properties of fluorinated poly(arylene ether)s, Eur. Polym. J. 52 (2014) 207-217. 

Many research groups have been systematically studied the effect of the structure-property relationship on gas transport properties of fluorinated polyimides. In this connection, Kim et al. investigated the effect of incorporating fluorinated alkyl side groups into polyimide membranes in terms of their physical and gas permeation properties (Table 3.5) [61]. They demonstrated four polyimides with fluorinated side groups and another four without side groups by polycondensation of 2-(perfluorohexyl)ethyl-3,5-diamino benzoate (PFDAB) and m-PDA with four aromatic dianhydrides (6FDA, ODPA, BTDA, and PMDA), respectively (Scheme 3.12). 

To investigate the effect of sulfonic acid groups on gas transport properties, K. Tanaka et al. [181] prepared a new sulfonated polyimide containing hexaflu-oroisopropylidene linkage (>C[CF3]2) (Scheme 3.17). 

Bravo, M.C. (2007) Effect of transition from slip to free molecular flow on gas transport in porous media. /. Appl. Phys., 102 (7), 074905. 

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