Phys. Rev. Lett. 100, 077801 (2008) [4 pages]Polymer Chain Swelling Induced by Dispersed NanoparticlesReceived 29 October 2007; published 21 February 2008 The dimensions of individual deuterated polystyrene (d-PS) chains in a well-dispersed mixture of protonated polystyrene and chemically identical nanoparticles was determined by neutron scattering. A 10%–20% increase in the radius of gyration of d-PS was found when the nanoparticles are homogeneously dispersed in the polymer, an effect that occurs only when the radius of gyration of the polymer is larger than the nanoparticle radius. These results are reconciled with the existing literature. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.077801
DOI:
10.1103/PhysRevLett.100.077801
PACS:
61.41.+e, 61.05.fg, 61.46.Df
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