Polymer adsorption on colloidal particles
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چکیده
2014 We consider the adsorption of polymers on colloidal particles 2014 spheres and cylinders 2014 whose dimensions are comparable to solution polymer radii of gyration. Adsorption occurs if the « sticking energy » per monomer exceeds a certain threshold. For a colloidal particle, this threshold increases by an amount inversely proportional to its radius. In addition, the repulsive interactions between monomers limit the number which may be attached to a given particle. Thus, there is a characteristic degree of polymerization, N*, proportional to the surface area of the particle. For N N *, one chain may completely clothe a given particle; for N > N*, a polymer chain is decorated by the colloidal particles like beads on a necklace. J. Physique 45 (1984) 725-729 AVRIL 1984, Classification Physics Abstracts 61.25H 68.1OJ 68.45
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تاریخ انتشار 2016