Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session N33: Dynamics of Polymers and Polyelectrolytes II
11:30 AM–2:18 PM,
Wednesday, March 6, 2024
Room: 102E
Sponsoring
Unit:
DPOLY
Chair: Benjamin Paren, Stevens Institute of Technology
Abstract: N33.00008 : Investigation of the Adsorption Behavior of Sodium Carboxymethyl Cellulose on Carbon Black Towards the Understanding of Li-ion Battery Slurry Stability
12:54 PM–1:06 PM
Presenter:
Eunheui Gwag
(Seoul National University)
Authors:
Eunheui Gwag
(Seoul National University)
So Youn Kim
(Seoul Natl Univ)
In this study, we attempt to investigate the adsorption behavior in the model system of sodium carboxymethyl cellulose (CMC) and carbon black (CB) from the perspective of CMC dynamics as the interaction between particle and polymer induces an inevitable conformational change of polymer. Employing broadband dielectric spectroscopy, the dynamic properties of CMC and the change of CMC dielectric responses with the CB were examined in detail. The dynamics of CMC were systemically investigated with varying degrees of substitution (DS) of CMC and CB content. The dynamics of CMC with lower DS have slowed down with more adsorption to CB, resulting in increased conductivity originating from the sturdier CB network.
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