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8 - Self-Assembly and Phase Behaviors

Published online by Cambridge University Press:  16 February 2023

Murugappan Muthukumar
Murugappan Muthukumar
Affiliation:
University of Massachusetts, Amherst
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Summary

Using the Flory-Huggins theory for uncharged polymer solutions, key concepts of the critical point, coexistence curve, and spinodal curve are presented. These concepts are then generalized to charged systems by explicitly considering restricted primitive model for electrolytes and new developments for polyelectrolyte solutions that include the liquid-liquid phase separation invoked in the formation of membrane-less organelles. Fibrillization in amyloids and collagen is discusses with a focus of electrostatic effects.

Keywords

Phase diagramFlory-Huggins theoryliquid-liquid phase separationmacrophase separationmicrophase separationLandau-Ginzburg theoryCoulomb criticalitycharge regularizationnucleationnucleation and growthspinodal decompositioncoexistence curvespinodal curvekinetics of phase separationmicellizationisotropic-nematic transitionOnsager theoryMaier-Saupe theoryCollagenfibrillizationmembrane-less organellesamyloids
Type
Chapter
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Physics of Charged Macromolecules
Synthetic and Biological Systems
 , pp. 279 - 338
Publisher: Cambridge University Press
Print publication year: 2023

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