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Molecular Thermodynamics of Fluid-Phase Equilibria, Third Edition by Edmundo Gomes de Azevedo - Institute Superior Técnico, Lisbon, Rüdiger N. Lichtenthaler - University of Heidelberg, John M. Prausnitz - University of California, Berkeley

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Chapter 8 Polymers: Solutions, Blends, Membranes, and Gels

Polymer solutions are liquid mixtures wherein the molecules of at least one component are very much larger than those of the other components. For many linear and branched polymers, liquid solvents are available that dissolve the polymer completely to form a homogeneous solution. However, cross-linked polymers (i.e. networks) only swell when in contact with a compatible liquid solvent. Swelling also occurs when polymeric materials are exposed to solvent vapors or gases that can be absorbed by the polymer.

A polymer blend is a mixture containing two or more polymers and, perhaps, an additional component to enhance polymer compatibility.

The phase behavior of polymer solutions and the ...

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