Course detail

Physical Chemistry of Colloidal Dispersions

FCH-MC_FCDAcad. year: 2022/2023

Classification and properties of disperse systems: kinetic and dynamic properties of disperse systems.
Thermal motion dynamics and consequences: osmosis, diffusion, concentration fluctuations.
Sedimentation and sedimentation analysis. Viscosity of disperse systems.
Elastic light scattering, quasi-elastic light scattering.
Macromolecular systems: classifiacation, configuration and stereoregularity.
Conformation statistics, freely-rotating chain, freely-jointed chain, constrained chain, equivalent chain, persistent length of chain, domain of macromolecule clusters.
Thermodynamics of polymer solutions, combinatoric entropy and enthalpy of mixing, Flory-Huggins equation, interaction parameter.
Phase behavior of polymer solutions, the critical dissolving temperature, the critical composition.
Diluted polymer solutions, random coil conformation, Flory-Fox equation, hydrodynamic properties of polymer solutions, osmotic pressure.
Polyelectrolytes: conformation, electrostatic effects, the ionic atmosphere, membrane and osmotic equilibria.
Macromolecular gels, covalently crosslinked polymers, gelation, ionogenic gels, swelling behavior, thermodynamics of elasticity, rheological properties, physically crosslinked polymers.

Language of instruction

Czech

Number of ECTS credits

Mode of study

Not applicable.

Guarantor

doc. Ing. Petr Sedláček, Ph.D.

Department

Institute of Physical and Applied Chemistry (ÚFSCH)

Learning outcomes of the course unit

Students will obtain the theoretical knowledge of polymer physics and physical chemistry of macromolecular systems.

Prerequisites

physical chemistry, mathemetics, macromolecular chemistry, rheology

Co-requisites

Not applicable.

Planned learning activities and teaching methods

The course uses teaching methods in form of Lecture - 2 teaching hours per week. The e-learning system (LMS Moodle) is available to teachers and students.

Assesment methods and criteria linked to learning outcomes

Written and oral exam.

Course curriculum

1. Disperse systems: Classification and properties.
2. Thermal motion and its concequences.
3. Sedimentation and sedimentation analysis. Viscosity of disperse systems.
4. Elastic light scattering,
5. Experimental evaluation of elastic (static) light scattering. Quasi-elastic (dynamic) light scattering.
6. Macromolecules, conformation statistics, freely-jointed and freely-rotated chain.
7. Constrained chain, local conformations, equivalent chain, persistent length of the chain.
8. Thermodynamics of polymer solutions, combinatoric entropy of mixing.
9. Enthalpy of mixing, Flory-Huggins equation.
10. Phase behavior of polymer solutions. Diluted polymer solutions, random coil conformation.
11. Flory-Fox equation, hydrodynamic properties of polymer solutions, osmotic pressure, polydispersity, polyelectrolytes, membrane and osmotic equillibria.
12. Macromolecular gels, covalently crosslinked gels, ionogenic gels, swelling behavior, physically crosslinked gels.

Work placements

Not applicable.

Aims

The aim of the course Physical Chemistry of Dispersions is to explain kinetic properties of disperse systems, thermodynamics of polymer solutions and their applications in technologies and other fields.

Specification of controlled education, way of implementation and compensation for absences

compulsory attendance on seminars

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Pouchlý J.: Fyzikální chemie makromolekulárních a koloidních soustav. VŠCHT Praha, Praha 1998. (CS)