Polymer Chain Behavior in Polymer Nanocomposites with Attractive Interactions

Nicolas Jouault; Michael K. Crawford; Changzai Chi; Robert J. Smalley; Barbara Wood; Jacques Jestin; Yuri B. Melnichenko; Lilin He; William E. Guise; Sanat K. Kumar

doi:10.1021/acsmacrolett.6b00164

Polymer Chain Behavior in Polymer Nanocomposites with Attractive Interactions

Nicolas Jouault, Michael K. Crawford, Changzai Chi, Robert J. Smalley, Barbara Wood, Jacques Jestin, Yuri B. Melnichenko, Lilin He, William E. Guise, Sanat K. Kumar

Research output: Contribution to journal › Article › peer-review

65 Scopus citations

Abstract

Chain behavior has been determined in polymer nanocomposites (PNCs) comprised of well-dispersed 12 nm diameter silica nanoparticles (NPs) in poly(methyl methacrylate) (PMMA) matrices by Small-Angle Neutron Scattering (SANS) measurements under the Zero Average Contrast (ZAC) condition. In particular, we directly characterize the bound polymer layer surrounding the NPs, revealing the bound layer profile. The SANS spectra in the high-q region also show no significant change in the bulk polymer radius of gyration on the addition of the NPs. We thus suggest that the bulk polymer conformation in PNCs should generally be determined using the high q region of SANS data.

Original language	English
Pages (from-to)	523-527
Number of pages	5
Journal	ACS Macro Letters
Volume	5
Issue number	4
DOIs	https://doi.org/10.1021/acsmacrolett.6b00164
State	Published - Apr 19 2016

Funding

N.J. and S.K.K. acknowledge financial support from National Science Foundation (DMR-1408323). A portion of this research at Oak Ridge National Laboratory's High Flux Isotope Reactor was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy. DND-CAT is supported by Northwestern University, E.I. DuPont de Nemours & Co., and The Dow Chemical Company. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DEAC02-06CH11357.

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10.1021/acsmacrolett.6b00164

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title = "Polymer Chain Behavior in Polymer Nanocomposites with Attractive Interactions",

abstract = "Chain behavior has been determined in polymer nanocomposites (PNCs) comprised of well-dispersed 12 nm diameter silica nanoparticles (NPs) in poly(methyl methacrylate) (PMMA) matrices by Small-Angle Neutron Scattering (SANS) measurements under the Zero Average Contrast (ZAC) condition. In particular, we directly characterize the bound polymer layer surrounding the NPs, revealing the bound layer profile. The SANS spectra in the high-q region also show no significant change in the bulk polymer radius of gyration on the addition of the NPs. We thus suggest that the bulk polymer conformation in PNCs should generally be determined using the high q region of SANS data.",

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T1 - Polymer Chain Behavior in Polymer Nanocomposites with Attractive Interactions

AU - Jouault, Nicolas

AU - Crawford, Michael K.

AU - Chi, Changzai

AU - Smalley, Robert J.

AU - Wood, Barbara

AU - Jestin, Jacques

AU - Melnichenko, Yuri B.

AU - He, Lilin

AU - Guise, William E.

AU - Kumar, Sanat K.

PY - 2016/4/19

Y1 - 2016/4/19

N2 - Chain behavior has been determined in polymer nanocomposites (PNCs) comprised of well-dispersed 12 nm diameter silica nanoparticles (NPs) in poly(methyl methacrylate) (PMMA) matrices by Small-Angle Neutron Scattering (SANS) measurements under the Zero Average Contrast (ZAC) condition. In particular, we directly characterize the bound polymer layer surrounding the NPs, revealing the bound layer profile. The SANS spectra in the high-q region also show no significant change in the bulk polymer radius of gyration on the addition of the NPs. We thus suggest that the bulk polymer conformation in PNCs should generally be determined using the high q region of SANS data.

AB - Chain behavior has been determined in polymer nanocomposites (PNCs) comprised of well-dispersed 12 nm diameter silica nanoparticles (NPs) in poly(methyl methacrylate) (PMMA) matrices by Small-Angle Neutron Scattering (SANS) measurements under the Zero Average Contrast (ZAC) condition. In particular, we directly characterize the bound polymer layer surrounding the NPs, revealing the bound layer profile. The SANS spectra in the high-q region also show no significant change in the bulk polymer radius of gyration on the addition of the NPs. We thus suggest that the bulk polymer conformation in PNCs should generally be determined using the high q region of SANS data.

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Polymer Chain Behavior in Polymer Nanocomposites with Attractive Interactions

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