Ionic Correlations in Random Ionomers

ACS Nano
Boran MaMonica Olvera de la Cruz

Abstract

Understanding the electrostatic interactions in ion-containing polymers is crucial to better design shape memory polymers and ion-conducting membranes for multiple energy storage and conversion applications. In molten polymers, the dielectric permittivity is low, generating strong ionic correlations that lead to clustering of the charges. Here, we investigate the influence of electrostatic interactions on the nanostructure of randomly charged polymers (ionomers) using coarse-grained molecular dynamics simulations. Densely packed branched structures rich in charged species are found as the strength of the electrostatic interactions increases. Polydispersity in charge fraction and composition combined with ion correlations leads to percolated nanostructures with long-range fluctuations. We identify the percolation point at which the ionic branched nanostructures percolate and offer a rigorous investigation of the statistics of the shape of the aggregates. The extra degree of freedom introduced by the charge polydispersity leads to bicontinuous structures with a broad range of compositions, similar to neutral A-B random copolymers, as well as to desirable percolated ionic structure in randomly charged-neutral diblock copolymers. T...Continue Reading

References

Feb 1, 1996·Journal of Molecular Graphics·W HumphreyK Schulten
Aug 12, 1991·Physical Review Letters·G H Fredrickson, S T Milner
Apr 27, 2011·Physical Review Letters·Lisa M HallAmalie L Frischknecht
Dec 3, 2011·Journal of the American Chemical Society·Lisa M HallAmalie L Frischknecht
Jun 9, 2014·Nature Materials·Charles E SingMonica Olvera de la Cruz
Jan 24, 2015·The Journal of Chemical Physics·Charles E SingMonica Olvera de la Cruz
Apr 14, 2016·Annual Review of Chemical and Biomolecular Engineering·Santosh MogurampellyVenkat Ganesan
May 25, 2016·Nature Chemistry·Timothy J NottAndrew J Baldwin
May 2, 2017·Annual Review of Chemical and Biomolecular Engineering·L Robert Middleton, Karen I Winey
Oct 28, 2017·Science·Karen I Winey

❮ Previous
Next ❯

Citations

Aug 23, 2018·Proceedings of the National Academy of Sciences of the United States of America·Chao SunWilliam R Dichtel
May 10, 2019·Nature Communications·Jimin ShimTimothy P Lodge
Nov 8, 2020·Polymers·Ahmad MoghimikheirabadiArgyrios V Karatrantos
Feb 27, 2021·The Journal of Physical Chemistry. B·Boran Ma, Monica Olvera de la Cruz
May 2, 2019·ACS Central Science·Felipe Jiménez-ÁngelesMonica Olvera de la Cruz
Jul 26, 2018·Journal of Chemical Theory and Computation·Jarol E MolinaJuan P Hernández-Ortiz
Nov 27, 2019·Nano Letters·Boran MaMonica Olvera de la Cruz
Aug 10, 2021·Macromolecules·Scott P O DanielsenMichael Rubinstein
Sep 21, 2021·Soft Matter·Wei Li, Monica Olvera de la Cruz

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Angewandte Chemie
Xiaowu YangChang Y Ryu
Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
C P LusignanR H Colby
Iyō Kizai Kenkyūjo hōkoku. Reports of the Institute for Medical and Dental Engineering, Tokyo Medical and Dental University
H MatsumuraS Saito
© 2022 Meta ULC. All rights reserved