Dynamic interactions between two polyethylene oxide layers adsorbed on polystyrene latex spheres have been studied by colloidal particle scattering, a method developed by us to measure surface forces. The adsorption layers were modeled as an elastic gel characterized by its elastic modulus and thickness. Both of them were determined experimentally, and the results agree with literature data. Furthermore, these two parameters provide us with information about polymer conformations on a latex surface at different adsorption concentrations, which is also consistent with previous theoretical and experimental findings.