Mobility of Nonsticky Nanoparticles in Polymer Liquids.

  title={Mobility of Nonsticky Nanoparticles in Polymer Liquids.},
  author={Li-Heng Cai and Sergey Panyukov and Michael H. Rubinstein},
  volume={44 19},
We use scaling theory to derive the time dependence of the mean-square displacement 〈Δr2〉 of a spherical probe particle of size d experiencing thermal motion in polymer solutions and melts. Particles with size smaller than solution correlation length ξ undergo ordinary diffusion (〈Δr2 (t)〉 ~ t) with diffusion coefficient similar to that in pure solvent. The… CONTINUE READING