Mechanical reinforcement in polymer melts filled with polymer grafted nanoparticles

Joseph F. Moll, Pinar Akcora, Atri Rungta, Shushan Gong, Ralph H. Colby, Brian C. Benicewicz, Sanat K. Kumar

Research output: Contribution to journalArticlepeer-review

173 Scopus citations


We critically leverage the fact that polymer grafted nanoparticles behave akin to block copolymers to systematically vary nanoparticle dispersion and critically examine its role on the mechanical reinforcement in liquid-polymer-based nanocomposites. The nanoparticles are noncontacting, and we perform rheological measurements 80K above the polymer's glass transition temperature. Our rheology results unequivocally show that reinforcement is maximized by the formation of a transient, but long-lived, percolating polymer-particle network with the particles serving as the network junctions.

Original languageEnglish (US)
Pages (from-to)7473-7477
Number of pages5
Issue number18
StatePublished - Sep 27 2011

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry


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