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Seminar of the ICMP

Seminar of the ICMP


By stetsiv - Posted on 21 October 2013

Date: 
24.10.2013, Thu 10:00
Venue: 
1 Svientsitskii str., r. 307
Department: 
ICMP
Speaker: 
Dr. E.Bianchi
Affiliation: 
Institute for theoretical physics and Center for Computational Materials Science, Technical University of Vienna, Austria
Presentation title: 

Spot-like Patchy Particles: Thermo-reversible Gelation, Phase Separation and Self-Assembly

Abstract: 

I have considered models of patchy colloids consisting of hard sphere

particles decorated by a small number of identical short-ranged attractive

sites arranged in regular geometries on the particle surface. I have used

these simple models to numerically and theoretically explore phenomena such as

the formation of ideal gels or so-called empty liquids.

 

By combining the Wertheim theory for association and the Flory-Stockmayer

approach of chemical gelation, I have developed an analytical parameter-free

description for the equilibrium behavior of patchy systems, which I have also

validated via comparisons with extensive Monte Carlo simulations in various

ensembles, focusing on the region of the phase diagram where colloid

poor-colloid rich phase separation, network formation and clustering take place.