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Title: Big Effect of Small Nanoparticles: A Shift in Paradigm for Polymer Nanocomposites

Abstract

Polymer nanocomposites (PNCs) are important materials that are widely used in many current technologies and potentially have broader applications in the future due to their excellent property of tunability, light weight and low cost. But, expanding the limits in property enhancement remains a fundamental scientific challenge. We demonstrate that well-dispersed, small (diameter ~1.8 nm) nanoparticles with attractive interactions lead to unexpectedly large and qualitatively new changes in PNC structural dynamics in comparison to conventional composites based on particles of diameter ~10-50 nm. At the same time, the zero-shear viscosity at high temperatures remains comparable to that of the neat polymer, thereby retaining good processibility and resolving a major challenge in PNC applications. These results suggest that the nanoparticle mobility and relatively short lifetimes of nanoparticlepolymer associations open qualitatively new horizons in tunability of macroscopic properties in nanocomposites with high potential for the development of new functional materials.

Authors:
 [1];  [2];  [3];  [4];  [5];  [1];  [1];  [6];  [3];  [5];  [2];  [1];  [7]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
  2. Univ. of Illinois, Urbana, IL (United States). Dept. of Materials Science and Chemistry
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Computer Science and Mathematics Division and Center for Nanophase Materials Science
  4. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  5. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry
  6. (United States). Dept. of Chemistry
  7. (United States). Dept. of Chemistry and Dept. of Physics and Astronomy
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1341569
Grant/Contract Number:
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
ACS Nano
Additional Journal Information:
Journal Volume: 11; Journal Issue: 1; Journal ID: ISSN 1936-0851
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; apparent disentanglement; fragility; glass transition; polymer nanocomposites; small nanoparticles

Citation Formats

Cheng, Shiwang, Xie, Shi-Jie, Carrillo, Jan-Michael Y., Carroll, Bobby, Martin, Halie, Cao, Peng-Fei, Dadmun, Mark D., Univ. of Tennessee, Knoxville, TN, Sumpter, Bobby G., Novikov, Vladimir N., Schweizer, Kenneth S., Sokolov, Alexei P., and Univ. of Tennessee, Knoxville, TN. Big Effect of Small Nanoparticles: A Shift in Paradigm for Polymer Nanocomposites. United States: N. p., 2017. Web. doi:10.1021/acsnano.6b07172.
Cheng, Shiwang, Xie, Shi-Jie, Carrillo, Jan-Michael Y., Carroll, Bobby, Martin, Halie, Cao, Peng-Fei, Dadmun, Mark D., Univ. of Tennessee, Knoxville, TN, Sumpter, Bobby G., Novikov, Vladimir N., Schweizer, Kenneth S., Sokolov, Alexei P., & Univ. of Tennessee, Knoxville, TN. Big Effect of Small Nanoparticles: A Shift in Paradigm for Polymer Nanocomposites. United States. doi:10.1021/acsnano.6b07172.
Cheng, Shiwang, Xie, Shi-Jie, Carrillo, Jan-Michael Y., Carroll, Bobby, Martin, Halie, Cao, Peng-Fei, Dadmun, Mark D., Univ. of Tennessee, Knoxville, TN, Sumpter, Bobby G., Novikov, Vladimir N., Schweizer, Kenneth S., Sokolov, Alexei P., and Univ. of Tennessee, Knoxville, TN. Wed . "Big Effect of Small Nanoparticles: A Shift in Paradigm for Polymer Nanocomposites". United States. doi:10.1021/acsnano.6b07172. https://www.osti.gov/servlets/purl/1341569.
@article{osti_1341569,
title = {Big Effect of Small Nanoparticles: A Shift in Paradigm for Polymer Nanocomposites},
author = {Cheng, Shiwang and Xie, Shi-Jie and Carrillo, Jan-Michael Y. and Carroll, Bobby and Martin, Halie and Cao, Peng-Fei and Dadmun, Mark D. and Univ. of Tennessee, Knoxville, TN and Sumpter, Bobby G. and Novikov, Vladimir N. and Schweizer, Kenneth S. and Sokolov, Alexei P. and Univ. of Tennessee, Knoxville, TN},
abstractNote = {Polymer nanocomposites (PNCs) are important materials that are widely used in many current technologies and potentially have broader applications in the future due to their excellent property of tunability, light weight and low cost. But, expanding the limits in property enhancement remains a fundamental scientific challenge. We demonstrate that well-dispersed, small (diameter ~1.8 nm) nanoparticles with attractive interactions lead to unexpectedly large and qualitatively new changes in PNC structural dynamics in comparison to conventional composites based on particles of diameter ~10-50 nm. At the same time, the zero-shear viscosity at high temperatures remains comparable to that of the neat polymer, thereby retaining good processibility and resolving a major challenge in PNC applications. These results suggest that the nanoparticle mobility and relatively short lifetimes of nanoparticlepolymer associations open qualitatively new horizons in tunability of macroscopic properties in nanocomposites with high potential for the development of new functional materials.},
doi = {10.1021/acsnano.6b07172},
journal = {ACS Nano},
number = 1,
volume = 11,
place = {United States},
year = {Wed Jan 04 00:00:00 EST 2017},
month = {Wed Jan 04 00:00:00 EST 2017}
}

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Cited by: 14works
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