Influence of Polydispersity on Random Sequential Adsorption of Spherical Particles

@article{citeulike:2392504, abstract = {Random sequential adsorption (RSA) of polydisperse mixtures of hard and interacting spherical particles was analyzed. Theoretical results were derived by performing numerical MC simulations both for Gaussian and for continuous distributions of particle sizes characterized by standard deviations below 20\%. Adsorption kinetics of these mixtures was determined for a broad range of times showing that for [tau] < 5 the influence of polydispersity was rather minor for both Gauss and continuous particle size distributions. More significant deviations were predicted for the asymptotic adsorption regime close to jamming. In the case of continuous distributions this limiting kinetics could be described by the power law dependence [theta][infinity]- [theta] ~ [tau]-1/3in accordance with the predictions of G. Tarjus and J. Talbot (1991, J. Phys. Math Gen.24,L913). The jamming concentration [theta][infinity]for hard (noninteracting) particles was found to increase proportionally to [sigma]. It was also shown that the polydispersity of particle mixtures can exert an effect on the structure of the adsorption layer (characterized in terms of the pair correlation function). The broadening of this function was confirmed experimentally by using colloid suspensions of spherical particles (polystyrene latex) characterized by [sigma] = 6-10\%.}, author = {Adamczyk, Zbigniew and Siwek, Barbara and Zembala, Maria and Weronski, Pawel }, citeulike-article-id = {2392504}, doi = {10.1006/jcis.1996.4540}, journal = {Journal of Colloid and Interface Science}, keywords = {rsa}, month = {January}, number = {1}, pages = {236--244}, posted-at = {2008-02-18 05:51:45}, priority = {2}, title = {Influence of Polydispersity on Random Sequential Adsorption of Spherical Particles}, url = {http://dx.doi.org/10.1006/jcis.1996.4540}, volume = {185}, year = {1997} }

TY - JOUR ID - citeulike:2392504 L3 - citeulike-article-id:2392504 TI - Influence of Polydispersity on Random Sequential Adsorption of Spherical Particles JF - Journal of Colloid and Interface Science VL - 185 IS - 1 SP - 236 EP - 244 N2 - Random sequential adsorption (RSA) of polydisperse mixtures of hard and interacting spherical particles was analyzed. Theoretical results were derived by performing numerical MC simulations both for Gaussian and for continuous distributions of particle sizes characterized by standard deviations below 20%. Adsorption kinetics of these mixtures was determined for a broad range of times showing that for [tau] < 5 the influence of polydispersity was rather minor for both Gauss and continuous particle size distributions. More significant deviations were predicted for the asymptotic adsorption regime close to jamming. In the case of continuous distributions this limiting kinetics could be described by the power law dependence [theta][infinity]- [theta] ~ [tau]-1/3in accordance with the predictions of G. Tarjus and J. Talbot (1991, J. Phys. Math Gen.24,L913). The jamming concentration [theta][infinity]for hard (noninteracting) particles was found to increase proportionally to [sigma]. It was also shown that the polydispersity of particle mixtures can exert an effect on the structure of the adsorption layer (characterized in terms of the pair correlation function). The broadening of this function was confirmed experimentally by using colloid suspensions of spherical particles (polystyrene latex) characterized by [sigma] = 6-10%. KW - rsa AU - Adamczyk, Zbigniew AU - Siwek, Barbara AU - Zembala, Maria AU - Weronski, Pawel PY - 1997/01/01/ UR - http://dx.doi.org/10.1006/jcis.1996.4540 ER -