Layer-by-Layer Self-Assembly of Polymers with Pairing Interactions

A molecular theory is introduced to model the layer-by-layer self-assembly (LbL-SA) of polymers with pairing interactions. Our theory provides a general framework to describe nonelectrostatic LbL-SA as the pairing interactions generically describe the formation of bonds between two complementary che...

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Autores principales: Zaldivar, G., Tagliazucchi, M.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_21611653_v5_n7_p862_Zaldivar
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_21611653_v5_n7_p862_Zaldivar
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spelling todo:paper_21611653_v5_n7_p862_Zaldivar2023-10-03T16:39:31Z Layer-by-Layer Self-Assembly of Polymers with Pairing Interactions Zaldivar, G. Tagliazucchi, M. A molecular theory is introduced to model the layer-by-layer self-assembly (LbL-SA) of polymers with pairing interactions. Our theory provides a general framework to describe nonelectrostatic LbL-SA as the pairing interactions generically describe the formation of bonds between two complementary chemical species, for example, hydrogen donor and acceptor in hydrogen-bonding-LbL or host and guest in host-guest-LbL. The theory predicts fundamental observations related to LbL-SA: (i) phase separation of a mixture of polymers with pairing interactions in bulk solution, (ii) linear increase in film thickness with the number of LbL adsorption steps, (iii) stoichiometry overcompensation after each adsorption step, and (iv) interpenetration of polymer layers. Importantly, this study shows that the minimal requirement for nonelectrostatic LbL is the competition of a pairing interaction and an excluded-volume repulsion. A simple analytical model based on this competition predicts the volume fraction of the layers in good agreement with the numerical predictions of the molecular theory. © 2016 American Chemical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_21611653_v5_n7_p862_Zaldivar
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description A molecular theory is introduced to model the layer-by-layer self-assembly (LbL-SA) of polymers with pairing interactions. Our theory provides a general framework to describe nonelectrostatic LbL-SA as the pairing interactions generically describe the formation of bonds between two complementary chemical species, for example, hydrogen donor and acceptor in hydrogen-bonding-LbL or host and guest in host-guest-LbL. The theory predicts fundamental observations related to LbL-SA: (i) phase separation of a mixture of polymers with pairing interactions in bulk solution, (ii) linear increase in film thickness with the number of LbL adsorption steps, (iii) stoichiometry overcompensation after each adsorption step, and (iv) interpenetration of polymer layers. Importantly, this study shows that the minimal requirement for nonelectrostatic LbL is the competition of a pairing interaction and an excluded-volume repulsion. A simple analytical model based on this competition predicts the volume fraction of the layers in good agreement with the numerical predictions of the molecular theory. © 2016 American Chemical Society.
format JOUR
author Zaldivar, G.
Tagliazucchi, M.
spellingShingle Zaldivar, G.
Tagliazucchi, M.
Layer-by-Layer Self-Assembly of Polymers with Pairing Interactions
author_facet Zaldivar, G.
Tagliazucchi, M.
author_sort Zaldivar, G.
title Layer-by-Layer Self-Assembly of Polymers with Pairing Interactions
title_short Layer-by-Layer Self-Assembly of Polymers with Pairing Interactions
title_full Layer-by-Layer Self-Assembly of Polymers with Pairing Interactions
title_fullStr Layer-by-Layer Self-Assembly of Polymers with Pairing Interactions
title_full_unstemmed Layer-by-Layer Self-Assembly of Polymers with Pairing Interactions
title_sort layer-by-layer self-assembly of polymers with pairing interactions
url http://hdl.handle.net/20.500.12110/paper_21611653_v5_n7_p862_Zaldivar
work_keys_str_mv AT zaldivarg layerbylayerselfassemblyofpolymerswithpairinginteractions
AT tagliazucchim layerbylayerselfassemblyofpolymerswithpairinginteractions
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