Universität Wien

270284 VO Colloid and Interface Science (2022W)

4.00 ECTS (2.00 SWS), SPL 27 - Chemie
MIXED
Moodle

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Details

max. 50 participants
Language: English

Examination dates

Lecturers

Classes (iCal) - next class is marked with N

Introduction on 04/10/2022 10:00 SR 1
Every Tuesday 10:00-12:00
SR 1
(SR 2 on 10/01/2023)

  • Tuesday 04.10. 10:00 - 12:00 Seminarraum 1 Analytische Chemie 2.OG Boltzmanngasse 1
  • Tuesday 11.10. 10:00 - 12:00 Seminarraum 1 Analytische Chemie 2.OG Boltzmanngasse 1
  • Tuesday 18.10. 10:00 - 12:00 Seminarraum 1 Analytische Chemie 2.OG Boltzmanngasse 1
  • Tuesday 25.10. 10:00 - 12:00 Seminarraum 1 Analytische Chemie 2.OG Boltzmanngasse 1
  • Tuesday 08.11. 10:00 - 12:00 Seminarraum 1 Analytische Chemie 2.OG Boltzmanngasse 1
  • Tuesday 15.11. 10:00 - 12:00 Seminarraum 1 Analytische Chemie 2.OG Boltzmanngasse 1
  • Tuesday 22.11. 10:00 - 12:00 Seminarraum 1 Analytische Chemie 2.OG Boltzmanngasse 1
  • Tuesday 29.11. 10:00 - 12:00 Seminarraum 1 Analytische Chemie 2.OG Boltzmanngasse 1
  • Tuesday 06.12. 10:00 - 12:00 Seminarraum 1 Analytische Chemie 2.OG Boltzmanngasse 1
  • Tuesday 13.12. 10:00 - 12:00 Seminarraum 1 Analytische Chemie 2.OG Boltzmanngasse 1
  • Tuesday 10.01. 10:00 - 12:00 Seminarraum 2 Währinger Straße 38 Dekanat 1. Stock
  • Tuesday 17.01. 10:00 - 12:00 Seminarraum 1 Analytische Chemie 2.OG Boltzmanngasse 1
  • Tuesday 24.01. 10:00 - 12:00 Seminarraum 1 Analytische Chemie 2.OG Boltzmanngasse 1
  • Tuesday 31.01. 10:00 - 12:00 Seminarraum 1 Analytische Chemie 2.OG Boltzmanngasse 1

Information

Aims, contents and method of the course

AimsStudents familiarise themselves with and understand the fundamentals of colloid and interface chemistry and science. Furthermore, how these principles can be applied: for example to understand the nature of the various inter-particle forces, how they can be calculated and applied. Understanding the origins of surface tension and how it can be altered, e.g. by the addition of surfactants, and knowing the nature of different classes of surfactants, and how they modify the properties of interfaces, be they solid, liquid or gas. Introduction into rheological concepts and viscoelasticity.Contents:Particle interactions: van der Waals Forces, Electrical Double layer, the effect of Polymers Kinetic properties of particlesInterfaces: solid-gas, solid-liquid, liquid-liquidSurface/Interfacial Tension and Wetting Surfactants Emulsions Rheology of dispersed mediamethods:lectures about the various topics.

Assessment and permitted materials

oral examination with individual appointment
2 students at a time
in case of Covid-19 restrictions: one student online

Minimum requirements and assessment criteria

at least three questions per studentto be positive: more than half of them answered correctly

Examination topics

content of the lecturese.g.- what type of colloidal systems exist?- what are colloids?- what are interfaces?- significant forces between colloidal particles: how they can be calculated in approximation and exactly and how they can be measured?- how to form emulsions and foams?- physical properties required for stable foams and emulsions to form- how to manipulate the wettability of surfaces? - why surfactants are active at interfaces?- how to choose type/class of surfactant to use in certain situations? specifically which would be good to form emulsions, as dispersants and good wetting agents? which would be good to destabilise emulsions?- why are rheological properties important in many applications and how to alter them?- what is adsorption/absorption? how to describe these phenomena?- electrical properties of interfaces- kinetic properties of particles

Reading list

lecture slidesStokes R.J. &. Evans D.F, Fundamentals of Interfacial Engineering, Wiley, 1997 Berg, JC An introduction to interfaces and colloids: The bridge to nanoscience Aveyard, R. and Haydon, D. A. An Introduction to the Principles of Surface Chemistry. University Press: Cambridge, 1973P. Becher, Emulsions and Emulsion Technology (Marcel Dekker), 1983. (see also 1985, 1987) M.J. Rosen, Surfactants and Interfacial Phenomena, 3rd Ed., John Wiley & Sons Inc, Chichester, 2004.K. Holmberg, et al., Surfactants and Polymers in Aqueous Solutions, 2nd Ed., John Wiley & Sons Inc, Chichester, 2003.

Association in the course directory

CH-MAT-02, MC-3, PC-5, WC5, B.2, Processes and Utilization

Last modified: We 05.07.2023 11:27