Guia docente 2020_21 Facultade de Química

Physical Chemistry II: Surfaces and Colloids

Contents

Topic	Sub-topic
I. TRANSPORT PHENOMENA.	1. Fundamentals of the Kinetic Theory of Gases. 2. Non-electrical Transport Phenomena Diffusion coefficient. Effusión. Thermal conductivity. Viscosity. 3. The effect of interparticle forces. 4. Molecular motion and the structure of liquids. Liquid cristals. 5. Electrical Transport Phenomena. Ionic conductivity. Ionic mobility. Applications of conductivity measurements
II. SURFACE PHENOMENA and SURFACE TENSION	1. Interfaces. 2. Thermodynamic treatment: surface tension. Curved interfaces. Capilarity. Vapour pressure. 3. Experimental determination of the surface tension. 4. Temperature dependence of the surface tension. 5. Adhesion and cohesion. 6. Interfaces with more than one component: the Gibbs law. Monolayers 7. Detergency. 8. Nucleation.
III. ADSORPTION ON SOLIDS	1. Introduction. 2. Clusters and nanoparticles. 3. Description of the structure of solid surfaces. Porosity. Electrical properties. 4. Experimental determination of the superficial structure and composition. 5. Adsorption: general aspects. 6. Experimental study. 7. Physisorption. The B.E.T. isotherm. 8. Chemisorption: Isotherms. 9. Superficial diffusion and desorption. 10. Superficial chemical bond. Restructuring of the surface. 11. The electrified interface. Double layer models and electrocapillarity. 12. Electrokinetic phenomena.
IV. POLYMERS AND MACROMOLECULES	1. General aspects. 2. Polymerization. Degree of polymerization. 3. Distributions of molecular mass. 4. Structure. Conformations. Conformational variables. 5. Structural models. The random coil model. The effect of chain rigidity. 6. Experimental characterization. 7. Fractionation. 8. The nature of the solid state and the physico-chemical properties.
V. COLLOIDS	1. Classification. 2. Stability and generation: general aspects. 3. Experimental characterization. 4. Liophobic dispersions : the D.L.V.O. theory. 5. Flocculation and Coagulation. 6. Synthesis of nanoparticles. 7. Stability of emulsions. Foams. Microemulsiones. Micelles. 8. The Langmuir-Blodgett method. Applications to the generation of nanomaterials. 9. Self-assembly and supramolecular chemistry
LAB	Experiments related to the contents. Transport phenomena, including ionic conductivity. Surface phenomena. Adsorption on solid surfaces. Macromolecules and colloids.