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Polymer Dynamics in Block Copolymer Electrolytes Detected by Neutron Spin Echo

Published

Author(s)

Whitney S. Loo, Antonio Faraone, Lorena S. Grundy, Kevin W. Gao, Nitash P. Balsara

Abstract

Polymer chain dynamics of a nanostructured block copolymer electrolyte are investigated by neutron spin-echo spectroscopy. Monomeric friction, determined by fitting the short-time data to the Rouse model, increases with increasing salt concentration. Tube diameters, determined by fitting the long-time data to the reptation model, decrease with increasing salt concentration. The longest molecular relaxation time increasing salt concentration. We argue that quantifying chain motion is essential for predicting the behavior of batteries at large currents.
Citation
ACS Macro Letters
Volume
9
Issue
5

Citation

Loo, W. , Faraone, A. , Grundy, L. , Gao, K. and Balsara, N. (2020), Polymer Dynamics in Block Copolymer Electrolytes Detected by Neutron Spin Echo, ACS Macro Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=929755 (Accessed April 20, 2024)
Created May 18, 2020, Updated October 12, 2021