5th International Discussion Meeting on Relaxations in Complex Systems New results, Directions and Opportunities. Physical Gels and strong liquids. Wednesday … last talk. Francesco Sciortino. Outline. Irreversible (Chemical) Gelation in a simple model Thermoreversible (Physical) Gelation
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5th International Discussion Meeting on Relaxations in Complex Systems
New results, Directions and OpportunitiesPhysical Gels and strong liquids
Wednesday … last talk
Signatures of percolation at fixed q
See also Del Gado works
What on cooling ?
Generic Phase Diagram for Square Well (3%)
The quest for the ideal (thermoreversible) gel….model
1) Long Living (but reversible) bonds
2)No Phase Separation
Are 1 and 2 mutually exclusive ?
How to stay at low T without condensation ?
Reasons for condensation
(Frank, Hill, Coniglio)
Physical Clusters at low T
the infinite cluster is the lowest (free)energy state
How to make the surface as stable as the bulk (or more)?
S.Sastry and E. La Nave
Geometric Constraint: Maximum Valency
SW if # of bonded particles <= Nmax
HS if # of bonded particles > Nmax
The possibility of observing strong-liquid behavior intimately connected to reduction of bonding
Four Arm Ologonucleotide Complexes as precursors for the generation of supramolecular periodic assemblies
JACS 126, 2050 2004
Palindroms in complementary space
C. De Michele, E. La Nave, P. Tartaglia, E. Zaccarelli (U. La Sapienza, Roma, Italy)I. Saika-Voivod (U. Saskatchewan, Canada)A. Moreno (Donostia International Center, Spain)S. Bulderyev (DMD code) (Yeshiva U., USA) S. Sastry (Bethe) (JNCASR, India)F. Starr (DNA-Gels) (Wesleyan U., USA)