270109 VO Colloid and Interface Science (2021W)
Labels
GEMISCHT
An/Abmeldung
Hinweis: Ihr Anmeldezeitpunkt innerhalb der Frist hat keine Auswirkungen auf die Platzvergabe (kein "first come, first served").
Details
max. 50 Teilnehmer*innen
Sprache: Englisch
Prüfungstermine
Lehrende
Termine (iCal) - nächster Termin ist mit N markiert
Vorbesprechung: Tue, 05/10/2021, 09:30
regular lecture: every Tuesday 09:30-12:00
- Dienstag 05.10. 09:30 - 10:30 Seminarraum 2 Währinger Straße 38 Dekanat 1. Stock (Vorbesprechung)
- Dienstag 12.10. 09:30 - 12:00 Seminarraum 3 Organische Chemie 1OG Boltzmanngasse 1
- Dienstag 19.10. 09:30 - 12:00 Seminarraum 3 Organische Chemie 1OG Boltzmanngasse 1
- Dienstag 09.11. 09:30 - 12:00 Seminarraum 3 Organische Chemie 1OG Boltzmanngasse 1
- Dienstag 16.11. 09:30 - 12:00 Seminarraum 3 Organische Chemie 1OG Boltzmanngasse 1
- Dienstag 23.11. 09:30 - 12:00 Seminarraum 2 Währinger Straße 38 Dekanat 1. Stock
- Dienstag 30.11. 09:30 - 12:00 Seminarraum 2 Währinger Straße 38 Dekanat 1. Stock
- Dienstag 07.12. 09:30 - 12:00 Seminarraum 2 Währinger Straße 38 Dekanat 1. Stock
- Dienstag 14.12. 09:30 - 12:00 Seminarraum 2 Währinger Straße 38 Dekanat 1. Stock
- Dienstag 11.01. 09:30 - 12:00 Seminarraum 2 Währinger Straße 38 Dekanat 1. Stock
- Dienstag 18.01. 09:30 - 12:00 Seminarraum 2 Währinger Straße 38 Dekanat 1. Stock
- Dienstag 25.01. 09:30 - 12:00 Seminarraum 2 Währinger Straße 38 Dekanat 1. Stock
Information
Ziele, Inhalte und Methode der Lehrveranstaltung
Art der Leistungskontrolle und erlaubte Hilfsmittel
oral examination with individual appointment
2 students at a time
in case of Covid-19 restrictions (probably): one student online
2 students at a time
in case of Covid-19 restrictions (probably): one student online
Mindestanforderungen und Beurteilungsmaßstab
at least three questions per student
to be positive: more than half of them answered correctly
to be positive: more than half of them answered correctly
Prüfungsstoff
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
- 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
Literatur
lecture slides
Stokes 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, 1973
P. 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.
Stokes 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, 1973
P. 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.
Zuordnung im Vorlesungsverzeichnis
PC-5, MC-3, A.4, D.1
Letzte Änderung: Mo 10.10.2022 14:49
Students 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 particles
Interfaces: solid-gas, solid-liquid, liquid-liquid
Surface/Interfacial Tension and Wetting
Surfactants
Emulsions
Rheology of dispersed mediamethods:
lectures about the various topics.