Chapter 3 Polymer Solutions 3.1 Interactions in Polymer System 3.2 Criteria of Polymer Solubility 3.3 Thermodynamics of Polymer Solutions: Flory-Huggins Theory 3.4 Thermodynamics and Conformations of Polymers in Dilute Solution 35 Scaling law(标度律) of polymers 3.6 Conformations of Polymer in Semi-dilute solution 3.7 Thermodynamics of Gels 3.8 Polyelectrolytes Solution 3.9 Hydrodynamics of Polymer SolutionsChapter 3 Polymer Solutions 0 3.1 Interactions in Polymer System 3.7 Thermodynamics of Gels 3.4 Thermodynamics and Conformations of Polymers in Dilute Solution 3.6 Conformations of Polymer in Semi-dilute Solution 3.3 Thermodynamics of Polymer Solutions: Flory-Huggins Theory 3.8 Polyelectrolytes Solution 3.9 Hydrodynamics of Polymer Solutions 3.5 Scaling Law(ḷᓖᖻ) of Polymers 3.2 Criteria of Polymer Solubility