Mode coupling and dynamical heterogeneity in colloidal gelation: A simulation study

Article Abstract:

The simulation results addressing the dynamics of a colloidal system with attractive interactions close to gelation are presented. Although dynamic heterogeneity (DH) is associated with activated hopping and facilitated dynamics in glasses, the form of DH observed is likely to be more collective in character and associated with static heterogeneity.

Molecular dynamics, Colloid chemistry

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A lattice model of vitrification and gelation

Article Abstract:

A simple lattice model with T-shaped molecules in two dimensions is introduced that exhibits a rich range of morphological behaviors. The results lead to a picture of gelation as a continuation of the glass transition into the two-phase region, or equivalently, as an incomplete phase separation arrested by the onset of the glass transition.

Morphological variation

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Effects of polar group saturation on physical gelation of amphiphilic polymer solutions

Article Abstract:

The effects of polar group saturation on the physical gelation in amphiphilic polymer solutions were studied by using Monte Carlo simulation. The simulation and experimental results show that the increase of the polar group saturation could significantly promote physical gelation and strengthen the gel network.

Analysis, Biopolymers, Monte Carlo method, Monte Carlo methods, Structure, Chemical properties, Percolation, Percolation (Hydrology)

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