Gas separation properties of pendent phenyl substituted aromatic polyamides containing sulfone and hexafluoroisopropylidene groups
作者： A. Singh , K. Ghosal , B.D. Freeman , A.E. Lozano , J.G. de la Campa
DOI: 10.1016/S0032-3861(98)00800-3
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摘要: Abstract The synthesis and gas transport properties of aromatic polyisophthalamides (PIPAs) based on isophthaloyl chloride (IPC) derivatives bearing a pendent phenyl group hexafluoroisopropylidene (6F) linkage in the main chain are reported. these polymers compared with similar PIPAs containing sulfonyl (SO2) rather than 6F chain. Polymers at five position more permeable those only hydrogen atom this position, although increases permeability generally accompanied by decreases selectivity. In SO2-bearing polymer, addition hinders packing PIPAs. Consequently, coefficients increase upon SO2-containing 6F-containing effect amide reversal polymer linkages backbone was minimal. All considered study were to nitrogen methane, some nitrogen/methane selectivities two.
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sci-hub.se 参考文章(26)
Ingo Pinnau, Benny D. Freeman, Separation of gases using solubility-selective polymers Trends in polymer science. ,vol. 5, pp. 167- 173 ,(1997)
H. F. Mark, Jacqueline I. Kroschwitz, Encyclopedia of polymer science and engineering Wiley. ,(1985)
R.M. Felder, G.S. Huvard, 17. Permeation, Diffusion, and Sorption of Gases and Vapors Methods in Experimental Physics. ,vol. 16, pp. 315- 377 ,(1980) , 10.1016/S0076-695X(08)60536-0
S. Alexander Stern, Polymers for gas separations: the next decade Journal of Membrane Science. ,vol. 94, pp. 1- 65 ,(1994) , 10.1016/0376-7388(94)00141-3
J.S. McHattie, W.J. Koros, D.R. Paul, Gas transport properties of polysulphones: 2. Effect of bisphenol connector groups Polymer. ,vol. 32, pp. 2618- 2625 ,(1991) , 10.1016/0032-3861(91)90343-H
O.M. Ekiner, G. Vassilatos, Polyaramide hollow fibers for hydrogen/methane separation — spinning and properties Journal of Membrane Science. ,vol. 53, pp. 259- 273 ,(1990) , 10.1016/0376-7388(90)80018-H
K. Ghosal, B.D. Freeman, R.T. Chern, J.C. Alvarez, J.G. de la Campa, A.E. Lozano, J. de Abajo, Gas separation properties of aromatic polyamides with sulfone groups Polymer. ,vol. 36, pp. 793- 800 ,(1995) , 10.1016/0032-3861(95)93110-8
A.J. Erb, D.R. Paul, Gas sorption and transport in polysulfone Journal of Membrane Science. ,vol. 8, pp. 11- 22 ,(1981) , 10.1016/S0376-7388(00)82135-3
Angel E. Lozano, Javier de Abajo, José G. de la Campa, Synthesis of Aromatic Polyisophthalamides by in Situ Silylation of Aromatic Diamines Macromolecules. ,vol. 30, pp. 2507- 2508 ,(1997) , 10.1021/MA961543P
W. M. Lee, Selection of barrier materials from molecular structure Polymer Engineering and Science. ,vol. 20, pp. 65- 69 ,(1980) , 10.1002/PEN.760200111