Table of Contents
Flory-Huggins Theory
Activity
The dependence on pressure: partial molar volume
Raoult’s law
Osmotic equilibrium
The van’t Hoff equation
Non-ideality: virial expansion
Virial expansion for osmotic pressure
Experimental considerations
Entropy
The entropy of mixing for an ideal gas
The entropy of mixing for an ideal gas
The entropy of mixing for an ideal gas
Excluded volume model for the entropy of mixing
The excluded volume in Wmix
The role of the solvent in Wmix
The mixed state entropy
Math tricks to express Smix
Obtaining DSmix
Statistical entropy of a polymer
Polymers in solution
The polymer lattice model
Entropy of mixing for polymers
Enthalpy of mixing for polymers
Interaction energy terms
Site-site energy contributions to DHmix
Cohesive energy density
The Flory-Huggins Parameter
The Flory-Huggins Parameter
Osmotic pressure for polymer solutions
Second virial coefficient for polymer solutions
Solvent Goodness
Flory temperature
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