Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session F17: Self-Assembled Systems
8:00 AM–11:00 AM,
Tuesday, March 15, 2022
Room: McCormick Place W-184BC
Sponsoring
Unit:
DPOLY
Chair: Dan Ye, Dow
Abstract: F17.00002 : Theory of Microphase Separation in Concentrated Solutions of Sequence Specific Charged Heteropolymers*
8:36 AM–8:48 AM
Presenter:
Siao-Fong Li
(University of Massachusetts Amherst)
Authors:
Siao-Fong Li
(University of Massachusetts Amherst)
Murugappan Muthukumar
(University of Massachusetts Amherst)
phase transitions of solutions of heteropolymers. Using the formalism of the effective field
theory, we have developed a general theory to describe microphase separation of sequence-
specific polymers in concentrated solutions by accounting for the specific interactions among
the various kinds of monomers constituting the polymer. Using the developed general theory,
we illustrate the role of electrostatic interactions in the context of intrinsically disordered
proteins and show spinodal curves and morphology diagrams. Our study demonstrates the rich
roles played by sequences of a polymer with a unique mapping between sequences and
microphase separated morphologies.
*NSF(DMR-2015935)AFOSR(FA 9550-20-1-0142)
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