Book contents
- Frontmatter
- Dedicatioin
- Contents
- Preface
- 1 Introduction
- 2 Chemical Synthesis of Aerogels from Monomeric Precursors
- 3 Chemical Synthesis of Aerogels from Polymeric Precursors
- 4 Gelation
- 5 Drying of Wet Gels
- 6 Morphology of Aerogels
- 7 Density: Models and Measures
- 8 Specific Surface Area
- 9 Pores and Pore Sizes
- 10 Diffusion in Aerogels
- 11 Permeability for Gases
- 12 Thermal Properties
- 13 Mechanical Properties of Aerogels
- 14 How to Cook Aerogels: Recipes and Procedures
- Appendix A Thermodynamics and Phase Separation in Immiscibles
- Appendix B Flory–Huggins Theory of Polymer Solutions
- Appendix C A Brief Review on Scattering
- Appendix D Mathematics of Polycondensation
- Appendix E Time-Dependent Heat Transfer through an Isolated Tube
- References
- Index
Appendix B - Flory–Huggins Theory of Polymer Solutions
Published online by Cambridge University Press: 03 December 2021
Book contents
- Frontmatter
- Dedicatioin
- Contents
- Preface
- 1 Introduction
- 2 Chemical Synthesis of Aerogels from Monomeric Precursors
- 3 Chemical Synthesis of Aerogels from Polymeric Precursors
- 4 Gelation
- 5 Drying of Wet Gels
- 6 Morphology of Aerogels
- 7 Density: Models and Measures
- 8 Specific Surface Area
- 9 Pores and Pore Sizes
- 10 Diffusion in Aerogels
- 11 Permeability for Gases
- 12 Thermal Properties
- 13 Mechanical Properties of Aerogels
- 14 How to Cook Aerogels: Recipes and Procedures
- Appendix A Thermodynamics and Phase Separation in Immiscibles
- Appendix B Flory–Huggins Theory of Polymer Solutions
- Appendix C A Brief Review on Scattering
- Appendix D Mathematics of Polycondensation
- Appendix E Time-Dependent Heat Transfer through an Isolated Tube
- References
- Index
Summary
The general thermodynamic concept of solutions is applied to polymer solutions. The famous Flory–Huggins theory is explained and binodal and spinodal lines are determined as they depend on the degree of polymerisation. Polymer solutions can exhibit not only an upper critical point but also a lower critical point. Some aerogels seem to exhibit such a phase behaviour.
- Type
- Chapter
- Information
- The Chemistry and Physics of AerogelsSynthesis, Processing, and Properties, pp. 404 - 410Publisher: Cambridge University PressPrint publication year: 2021