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

doi:10.1021/ma201200m

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 journal › Article › peer-review

173 Scopus citations

Abstract

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 language	English (US)
Pages (from-to)	7473-7477
Number of pages	5
Journal	Macromolecules
Volume	44
Issue number	18
DOIs	https://doi.org/10.1021/ma201200m
State	Published - Sep 27 2011

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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abstract = "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.",

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AU - Moll, Joseph F.

AU - Akcora, Pinar

AU - Rungta, Atri

AU - Gong, Shushan

AU - Colby, Ralph H.

AU - Benicewicz, Brian C.

AU - Kumar, Sanat K.

PY - 2011/9/27

Y1 - 2011/9/27

N2 - 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.

AB - 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.

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JO - Macromolecules

JF - Macromolecules

IS - 18

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Mechanical reinforcement in polymer melts filled with polymer grafted nanoparticles

Abstract

All Science Journal Classification (ASJC) codes

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