Gas separation properties

Hatori, H., H. Takagi, and Y. Yamada, Gas separation properties of molecular sieving carbon membranes with nanopore channels, Carbon, 42, 1169-1173, 2004. [Pg.319]

C.A. (1993) Adsorbent-filled membranes for gas separation. Part 1. Improvement of the gas separation properties of polymeric membranes by incorporation... [Pg.352]

Yoshino M, Ito K, Kita H et al (2000) Effects of hard-segment polymers on C02/N2 gas-separation properties of polyethylene oxide)-segmented copolymers. J Polym Sci Part B Polym Phys 38(13) 1707-1715... [Pg.52]

Table 1. Gas separation properties of polyimide-polydimethylsiloxane segmented copolymers as a function of the aromatic amine used for the hard segment [99]...

Yamada Y, Furukawa N, Tujita Y (1997) Structure and gas separation properties of silicone-containing polyimides. High Perform Polym 9(2) 145... [Pg.103]

Yamada Y, Furukawa N, Wada K, Tsujita Y, Takizawa A (1991) Structures and gas separation properties of silicone containing polyimides. Adv. Polym Sci and Tech. Proc. of the 4th Inti Conf on Polyimides. Feger C, Khojasteh, MM and MS Htoo MS (eds) pp 482-449, Ellenville New York... [Pg.103]

Svetlichnii VM, Denisov VM, Kudryavtsev VV Polotskaya GA, Kuznetsov YP (1991) Soluble ether imide-oligodimethylsiloxane copolymers kinetic mechanical and gas separation properties of polyimides and other high-temperature polymers. Proc Eur Tech Symp 2nd Abadie MJ, Sillion B (eds). Elsevier, Amsterdam,pp 525-535... [Pg.104]

This chapter is split in two parts. The first part will briefly treat the preparation of flat ceramic membrane supports by colloidal processing. In our laboratory, these supports are used to study stability and gas separation properties of microporous silica membranes because they are easy to prepare and demand less complex testing equipment. [Pg.53]

Pinnau, I., and Koros, W. (1991), Structures and gas separation property asymmetric polysulfone membranes made by dry, wet, and dry/wet phase-inversion, J. Appl. Polym. Sci., 43,1491-1502. [Pg.1127]

J.M. Duval, B. Folkers, M.H.V Mulder, G. Desgrandchamps, and C.A. Smolders, Adsorbent filled membranes for gas separation. Pan 1. Improvement of the gas separation properties of polymeric membranes by incorporation of microporous adsorbents, J. Membrane Sci. 50 189 (1983). [Pg.570]

The perfluorinated polymers ate materials of special interest due to their exceptionally good chemical and thermal stabdity compared to other polymers. The challenge has however for many years been to prepare these materials with suitable gas separation properties. They used to be either very crystalline or too porous, hence selectivities were low. They may however be prepared as high flux— low selectivity membranes, which is acceptable for certain applications. Materials prepared from tetrafluoroethylene (TEE)... [Pg.78]

Kim TH, Koros WJ, Husk GR, and O Brien KC. Relationship between gas separation properties and chemical-stmcture in a series of aromatic polyimides. J. Membr. Sci. 1988 37 45-62. [Pg.103]

Effect of Chemical Composition of Organosilicon Polymers on Their Gas Separation Properties to Hydrocarbons... [Pg.240]

The molar ratios in the precursor solution were 100 SiO2 10 Na2O 10 (TPA)20 1600 H2O while hydrothermal treatment was conducted at 130°C for 48 h, followed by an additional treatment at 200°C for 16 h. After washing, drying and calcination at 600°C a zeolite membrane with good gas separation properties resulted. No further characteristics of the layer were given. [Pg.321]

High efficiency and power density of PEM fuel cells are closely related to high proton conductivity and the gas separating property of the used electrolyte (separa-... [Pg.731]

Synthesis of a high molecular weight PNI (XX r d = 4.26 dl/g) that shows solubility in chloroform permitted the preparation of films possessing fairly good gas-separation properties [43]. [Pg.23]

The electric conductivity of p-PODA at room temperature is 10 Scm This corresponds to common insulating polymers in the glassy state. However, above 440 K, ionic conduction is observed. " Electrically conductive PODAs can be obtained by doping with electron donors or electron acceptors. Some varieties of PODA are semiconductors and exhibit photoconductive properties. Therefore, they are used in electrical applications. PODA films exhibit exceptional gas separation properties. ... [Pg.338]

Table 7.6 Gas separation properties of nanoporous carbon membrane.

K. M. Steel, W.J. Koros, An investigation of the effects of pyrolysis parameters on gas separation properties of carbon materials. Carbon 2005, 43 (9), 1843-1856. [Pg.89]

Figure 17.9 Feed composition dependence on permeance of each component and CO2/N2 (closed symbol) and CO2/CH4 (open symbol) separation factors at 35 °C and a feed pressure of 100 kPa. Reprinted from Y. Cui, H. Kita and K. Okamoto, Preparation and gas separation properties of zeolite T membranes, Chemical Communications, 2154—2155, 2003, with permission from RSC.

PODA films exhibit exceptional gas separation properties [61],... [Pg.248]

The thermal rearrangement of a-hydroxyl-PI membranes improves the gas permselectivity properties in comparison to a neat PI. By intro-dueing segments within the polymer that do not undergo thermal rearrangement, the gas separation properties of the thermally rearranged membrane can be modified. PI copolymers based on 4,4 -hexafluoroisopropylidene diphthalic anhydride and diamines 3,3 -dihydroxy-4,4 -diamino-biphenyI with 2,3,5,6-tetramethyI-l,4-phenyIenediamine or 9,9 -bis(4-aminophenyl)fluorene, thermally rearranged into poly(benzoxazole-co-imide), were tested [107]. [Pg.356]

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