Benny Freeman, Yuri Yampolskii, Ingo Pinnau's Materials science of membranes for gas and vapor separation PDF

By Benny Freeman, Yuri Yampolskii, Ingo Pinnau

Fabrics technological know-how of Membranes for fuel and Vapor Separation is a one-stop reference for the most recent advances in membrane-based separation and know-how. prepare by means of a world group of members and academia, the booklet specializes in the advances in either theoretical and experimental fabrics technological know-how and engineering, in addition to development in membrane expertise. specified consciousness is given to evaluating polymer and inorganic/organic separation and different rising functions resembling sensors.

This publication goals to provide a balanced therapy of the topic region, permitting the reader a good total point of view of latest theoretical effects that may be utilized to complicated fabrics, in addition to the separation of polymers. The contributions will supply a compact resource of appropriate and well timed info and should be of curiosity to govt, business and educational polymer chemists, chemical engineers and fabrics scientists, in addition to a fantastic creation to scholars.

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Pinnau, J. Polym. Sci. Part B: Polym. Phys. , 36, 289–301, Copyright ß 1998, John Wiley & Sons, Inc. Reprinted with permission of John Wiley & Sons, Inc. (b) Reproduced by permission of Wiley-VCH from ‘High performance polymer membranes for natural-gas sweetening’, H. Lin, E. van Wagner, B. D. Freeman and I. Roman, Adv. Mater, 18, 39–44 (2006). (c) Reprinted with permission from H. Lin, E. van Wagner, B. D. Freeman, L. G. Toy and P. Ragubir, ‘New membrane materials for CO2 =H2 separation and a model for pure and mixed gas permeability’, Science, 311, 639–642 (2006).

The methyl substitution reduced both chain motion and packing as indicated by the Tg and FFV changes [157]. e. Cl, Br) introduces additional polar groups into the polymer, which caused Tg and Tg to increase significantly, indicating reductions in chain mobility. The halogen substitution also reduced FFV. The more efficient chain packing and loss of chain mobility in the halogen tetrasubstituted polycarbonates lowered CO2 and CH4 permeability.

Reprinted with permission of John Wiley & Sons, Inc. 22 Membranes for Gas and Vapor Separation developing sorption models based on applying statistical mechanics concepts to develop equations-of-state for non-equilibrium systems such as glassy polymers. These equations-of-state can then form the foundations of new sorption models that have more predictive ability than the dualmode model. A review of this approach is presented in Chapter 5. 11(d) are often observed in glassy polymers when the solute concentration becomes high enough that Henry’s law is no longer adequate for modeling sorption in the equilibrium structure of the polymer.

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