Random sequential adsorption of starlike particles

Abstract

Random packing of surfaceless starlike particles built of 3 to 50 line segments was studied using random sequential adsorption algorithm. Numerical simulations allow us to determine saturated packing densities as well as the first two virial expansion coefficients for such objects. Measured kinetics of the packing growth supports the power law known to be valid for particles with a finite surface; however, the dependence of the exponent in this law on the number of star arms is unexpected. The density autocorrelation function shows fast superexponential decay as for disks, but the typical distance between closest stars is much smaller than between disks of the similar size, especially for a small number of arms.

Jamming and percolation in random sequential adsorption of extended objects on a triangular lattice with quenched impurities

“…Approach to the jamming coverage is known to be algebraic for continuum systems [9][10][11][12] and exponential for lattice models [13][14][15][16][17][18]. In the latter case the late-time kinetics of the process is described by the time dependence:…”

Random sequential adsorption of polydisperse mixtures on lattices

“…Our results may also be useful in future RSA studies, for instance to models including particle interactions, particle mobility, and other particle shapes and substrate structures [54,55]. The detailed study of features at times of order τ may also be interesting in off-lattice (continuum) RSA, for instance considering the variety of particle shapes studied in recent works for modeling compact and branched structures [56,57].…”

Non‐Volatile Glycerin Gel Enhanced by Sub‐5 nm Particles with Super Elasticity, Recoverability, and High Temperature Resistance

“…This is much different from the SEM pictures of hydrogel. For the traditional hydrogel, in the freezedrying process, the sublimation of ice crystal will leave a honey comb structure [43] in the sample (Figure 4a), while in the NV gel, organic molecules have a very strong bonding with each other. So organic solvents were not easily evaporated, even under freeze-drying conditions (Figure 4b).…”