Cargando…
Systematic Study of the Nanostructures of Exfoliated Polymer Nanocomposites
[Image: see text] High-performance bioinspired materials have shown rapid development over the last decade. Examples are brick-and-mortar hierarchical structures, which are often achieved via solvent evaporation. Although good properties are claimed, most systems are composed of stacked or intercala...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
|
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10537450/ https://www.ncbi.nlm.nih.gov/pubmed/37781216 http://dx.doi.org/10.1021/acs.macromol.3c00575 |
_version_ | 1785113105795121152 |
---|---|
author | Espíndola, Suellen Pereira Zlopasa, Jure Picken, Stephen J. |
author_facet | Espíndola, Suellen Pereira Zlopasa, Jure Picken, Stephen J. |
author_sort | Espíndola, Suellen Pereira |
collection | PubMed |
description | [Image: see text] High-performance bioinspired materials have shown rapid development over the last decade. Examples are brick-and-mortar hierarchical structures, which are often achieved via solvent evaporation. Although good properties are claimed, most systems are composed of stacked or intercalated platelets. Exfoliation is a crucial step to give ultimate anisotropic properties, e.g., thermal, mechanical, and barrier properties. We propose a general framework for all the various types of micro-scale structures that should be distinguished for 2D filler nanocomposites. In particular, the exfoliated state is systematically explored by the immobilization of montmorillonite platelets via (gelatin) hydrogelation. Scattering techniques were used to evaluate this strategy at the level of the particle dispersion and the regularity of spatial arrangement. The gelatin/montmorillonite exfoliated nanostructures are fully controlled by the filler volume fraction since the observed gallery d-spacings perfectly fall onto the predicted values. Surprisingly, X-ray analysis also revealed short- and quasi long-range arrangement of the montmorillonite clay at high loading. |
format | Online Article Text |
id | pubmed-10537450 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-105374502023-09-29 Systematic Study of the Nanostructures of Exfoliated Polymer Nanocomposites Espíndola, Suellen Pereira Zlopasa, Jure Picken, Stephen J. Macromolecules [Image: see text] High-performance bioinspired materials have shown rapid development over the last decade. Examples are brick-and-mortar hierarchical structures, which are often achieved via solvent evaporation. Although good properties are claimed, most systems are composed of stacked or intercalated platelets. Exfoliation is a crucial step to give ultimate anisotropic properties, e.g., thermal, mechanical, and barrier properties. We propose a general framework for all the various types of micro-scale structures that should be distinguished for 2D filler nanocomposites. In particular, the exfoliated state is systematically explored by the immobilization of montmorillonite platelets via (gelatin) hydrogelation. Scattering techniques were used to evaluate this strategy at the level of the particle dispersion and the regularity of spatial arrangement. The gelatin/montmorillonite exfoliated nanostructures are fully controlled by the filler volume fraction since the observed gallery d-spacings perfectly fall onto the predicted values. Surprisingly, X-ray analysis also revealed short- and quasi long-range arrangement of the montmorillonite clay at high loading. American Chemical Society 2023-09-14 /pmc/articles/PMC10537450/ /pubmed/37781216 http://dx.doi.org/10.1021/acs.macromol.3c00575 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Espíndola, Suellen Pereira Zlopasa, Jure Picken, Stephen J. Systematic Study of the Nanostructures of Exfoliated Polymer Nanocomposites |
title | Systematic
Study of the Nanostructures of Exfoliated
Polymer Nanocomposites |
title_full | Systematic
Study of the Nanostructures of Exfoliated
Polymer Nanocomposites |
title_fullStr | Systematic
Study of the Nanostructures of Exfoliated
Polymer Nanocomposites |
title_full_unstemmed | Systematic
Study of the Nanostructures of Exfoliated
Polymer Nanocomposites |
title_short | Systematic
Study of the Nanostructures of Exfoliated
Polymer Nanocomposites |
title_sort | systematic
study of the nanostructures of exfoliated
polymer nanocomposites |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10537450/ https://www.ncbi.nlm.nih.gov/pubmed/37781216 http://dx.doi.org/10.1021/acs.macromol.3c00575 |
work_keys_str_mv | AT espindolasuellenpereira systematicstudyofthenanostructuresofexfoliatedpolymernanocomposites AT zlopasajure systematicstudyofthenanostructuresofexfoliatedpolymernanocomposites AT pickenstephenj systematicstudyofthenanostructuresofexfoliatedpolymernanocomposites |