Hairy Gels: A Computational Study

We present results of MD and MC simulations of the equilibrium properties of swelling gels with comb-like or bottlebrush subchains and compare them to scaling-theory predictions. In accordance with theory, the simulation results demonstrate that swelling coefficient of the gel increases as a functio...

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Main Authors: Filip Uhlik, Oleg V. Rud, Oleg V. Borisov, Ekaterina B. Zhulina
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Gels
Subjects:
Online Access:https://www.mdpi.com/2310-2861/8/12/793
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author Filip Uhlik
Oleg V. Rud
Oleg V. Borisov
Ekaterina B. Zhulina
author_facet Filip Uhlik
Oleg V. Rud
Oleg V. Borisov
Ekaterina B. Zhulina
author_sort Filip Uhlik
collection DOAJ
description We present results of MD and MC simulations of the equilibrium properties of swelling gels with comb-like or bottlebrush subchains and compare them to scaling-theory predictions. In accordance with theory, the simulation results demonstrate that swelling coefficient of the gel increases as a function of the polymerization degree of the main chains and exhibits a very weak maximum (or is virtually constant) as a function of the polymerization degree and grafting density of side chains. The bulk osmotic modulus passes through a shallow minimum as the polymerization degree of the side chains increases. This minimum is attributed to the onset of overlap of side chains belonging to different bottlebrush strands in the swollen gel.
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spelling doaj.art-9c8beb8b70d64f51a67253b819c3fe342023-11-24T15:01:08ZengMDPI AGGels2310-28612022-12-0181279310.3390/gels8120793Hairy Gels: A Computational StudyFilip Uhlik0Oleg V. Rud1Oleg V. Borisov2Ekaterina B. Zhulina3Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, 128 00 Prague, Czech RepublicDepartment of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, 128 00 Prague, Czech RepublicInstitute of Macromolecular Compounds of the Russian Academy of Sciences, 199004 St. Petersburg, RussiaInstitute of Macromolecular Compounds of the Russian Academy of Sciences, 199004 St. Petersburg, RussiaWe present results of MD and MC simulations of the equilibrium properties of swelling gels with comb-like or bottlebrush subchains and compare them to scaling-theory predictions. In accordance with theory, the simulation results demonstrate that swelling coefficient of the gel increases as a function of the polymerization degree of the main chains and exhibits a very weak maximum (or is virtually constant) as a function of the polymerization degree and grafting density of side chains. The bulk osmotic modulus passes through a shallow minimum as the polymerization degree of the side chains increases. This minimum is attributed to the onset of overlap of side chains belonging to different bottlebrush strands in the swollen gel.https://www.mdpi.com/2310-2861/8/12/793gelsbottlebrushscaling theoryMonte Carlomolecular dynamics
spellingShingle Filip Uhlik
Oleg V. Rud
Oleg V. Borisov
Ekaterina B. Zhulina
Hairy Gels: A Computational Study
Gels
gels
bottlebrush
scaling theory
Monte Carlo
molecular dynamics
title Hairy Gels: A Computational Study
title_full Hairy Gels: A Computational Study
title_fullStr Hairy Gels: A Computational Study
title_full_unstemmed Hairy Gels: A Computational Study
title_short Hairy Gels: A Computational Study
title_sort hairy gels a computational study
topic gels
bottlebrush
scaling theory
Monte Carlo
molecular dynamics
url https://www.mdpi.com/2310-2861/8/12/793
work_keys_str_mv AT filipuhlik hairygelsacomputationalstudy
AT olegvrud hairygelsacomputationalstudy
AT olegvborisov hairygelsacomputationalstudy
AT ekaterinabzhulina hairygelsacomputationalstudy