Gelation as arrested phase separation in short-ranged attractive colloid-polymer mixtures

Details Gelation as arrested phase separation in short-ranged attractive colloid-polymer mixtures Gelation as arrested phase separation in short-ranged attractive colloid-polymer mixtures

2008-10-23

arxiv.org/abs/0810.4239v1

Physics

Condensed Matter

Soft Condensed Matter

6 figures, to be published in J. Phys. Condens. Matter, special issue for EPS Liquids Conference 2008

Scientific paper

10.1088/0953-8984/20/49/494242

We present further evidence that gelation is an arrested phase separation in attractive colloid-polymer mixtures, based on a method combining confocal microscopy experiments with numerical simulations recently established in {\bf Nature 453, 499 (2008)}. Our results are independent of the form of the interparticle attractive potential, and therefore should apply broadly to any attractive particle system with short-ranged, isotropic attractions. We also give additional characterization of the gel states in terms of their structure, inhomogeneous character and local density.

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