Cavitation and radicals drive the sonochemical synthesis of functional polymer spheres
Abstract
Sonochemical synthesis can lead to a dramatic increase in the kinetics of formation of polymer spheres (templates for carbon spheres) compared to the modified Stober silica method applied to produce analogous polymer spheres. Reactive molecular dynamics simulations of the sonochemical process indicate a significantly enhanced rate of polymer sphere formation starting from resorcinol and formaldehyde precursors. The associated chemical reaction kinetics enhancement due to sonication is postulated to arise from the localized lowering of atomic densities, localized heating, and generation of radicals due to cavitation collapse in aqueous systems. This dramatic increase in reaction rates translates into enhanced nucleation and growth of the polymer spheres. Finally, the results are of broad significance to understanding mechanisms of sonication induced synthesis as well as technologies utilizing polymers spheres.
- Authors:
-
- Argonne National Lab. (ANL), Argonne, IL (United States)
- World Premier International Center for Materials Nanoarchitechtonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba (Japan)
- Purdue Univ., West Lafayette, IN (United States)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1313077
- Alternate Identifier(s):
- OSTI ID: 1272649
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 109; Journal Issue: 4; Journal ID: ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; cavitation; molecular dynamics; polymer spheres; sonochemical synthesis
Citation Formats
Narayanan, Badri, Deshmukh, Sanket A., Shrestha, Lok Kumar, Ariga, Katsuhiko, Pol, Vilas G., and Sankaranarayanan, Subramanian K. R. S. Cavitation and radicals drive the sonochemical synthesis of functional polymer spheres. United States: N. p., 2016.
Web. doi:10.1063/1.4959885.
Narayanan, Badri, Deshmukh, Sanket A., Shrestha, Lok Kumar, Ariga, Katsuhiko, Pol, Vilas G., & Sankaranarayanan, Subramanian K. R. S. Cavitation and radicals drive the sonochemical synthesis of functional polymer spheres. United States. https://doi.org/10.1063/1.4959885
Narayanan, Badri, Deshmukh, Sanket A., Shrestha, Lok Kumar, Ariga, Katsuhiko, Pol, Vilas G., and Sankaranarayanan, Subramanian K. R. S. Mon .
"Cavitation and radicals drive the sonochemical synthesis of functional polymer spheres". United States. https://doi.org/10.1063/1.4959885. https://www.osti.gov/servlets/purl/1313077.
@article{osti_1313077,
title = {Cavitation and radicals drive the sonochemical synthesis of functional polymer spheres},
author = {Narayanan, Badri and Deshmukh, Sanket A. and Shrestha, Lok Kumar and Ariga, Katsuhiko and Pol, Vilas G. and Sankaranarayanan, Subramanian K. R. S.},
abstractNote = {Sonochemical synthesis can lead to a dramatic increase in the kinetics of formation of polymer spheres (templates for carbon spheres) compared to the modified Stober silica method applied to produce analogous polymer spheres. Reactive molecular dynamics simulations of the sonochemical process indicate a significantly enhanced rate of polymer sphere formation starting from resorcinol and formaldehyde precursors. The associated chemical reaction kinetics enhancement due to sonication is postulated to arise from the localized lowering of atomic densities, localized heating, and generation of radicals due to cavitation collapse in aqueous systems. This dramatic increase in reaction rates translates into enhanced nucleation and growth of the polymer spheres. Finally, the results are of broad significance to understanding mechanisms of sonication induced synthesis as well as technologies utilizing polymers spheres.},
doi = {10.1063/1.4959885},
journal = {Applied Physics Letters},
number = 4,
volume = 109,
place = {United States},
year = {Mon Jul 25 00:00:00 EDT 2016},
month = {Mon Jul 25 00:00:00 EDT 2016}
}
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