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Molecular Features Behind Formation of α or β Co-Crystalline and Nanoporous-Crystalline Phases of PPO
Guest molecular features determining the formation of α and β phases of poly(2-6-dimethyl-1,4-phenylene) oxide (PPO) are explored by collecting literature data and adding many new film preparations, both by solution casting and by guest sorption in amorphous films. Independently of the considered pr...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8821151/ https://www.ncbi.nlm.nih.gov/pubmed/35145955 http://dx.doi.org/10.3389/fchem.2021.809850 |
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author | Golla, Manohar Cozzolino, Antonietta Nagendra, Baku Vignola, Emanuele Daniel, Christophe Rizzo, Paola Guerra, Gaetano Auriemma, Finizia D’Alterio, Massimo Christian |
author_facet | Golla, Manohar Cozzolino, Antonietta Nagendra, Baku Vignola, Emanuele Daniel, Christophe Rizzo, Paola Guerra, Gaetano Auriemma, Finizia D’Alterio, Massimo Christian |
author_sort | Golla, Manohar |
collection | PubMed |
description | Guest molecular features determining the formation of α and β phases of poly(2-6-dimethyl-1,4-phenylene) oxide (PPO) are explored by collecting literature data and adding many new film preparations, both by solution casting and by guest sorption in amorphous films. Independently of the considered preparation method, the α-form is favored by the hydrophobic and bulky guest molecules, while the hydrophilic and small guest molecules favor the β-form. Furthermore, molecular modeling studies indicate that the β-form inducer guests establish stronger dispersive interactions with the PPO units than the α-form inducer guests. Thus, the achievement of co-crystalline (and derived nanoporous crystalline) α- and β-forms would result from differences in energy gain due to the host–guest interactions established at the local scale. |
format | Online Article Text |
id | pubmed-8821151 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-88211512022-02-09 Molecular Features Behind Formation of α or β Co-Crystalline and Nanoporous-Crystalline Phases of PPO Golla, Manohar Cozzolino, Antonietta Nagendra, Baku Vignola, Emanuele Daniel, Christophe Rizzo, Paola Guerra, Gaetano Auriemma, Finizia D’Alterio, Massimo Christian Front Chem Chemistry Guest molecular features determining the formation of α and β phases of poly(2-6-dimethyl-1,4-phenylene) oxide (PPO) are explored by collecting literature data and adding many new film preparations, both by solution casting and by guest sorption in amorphous films. Independently of the considered preparation method, the α-form is favored by the hydrophobic and bulky guest molecules, while the hydrophilic and small guest molecules favor the β-form. Furthermore, molecular modeling studies indicate that the β-form inducer guests establish stronger dispersive interactions with the PPO units than the α-form inducer guests. Thus, the achievement of co-crystalline (and derived nanoporous crystalline) α- and β-forms would result from differences in energy gain due to the host–guest interactions established at the local scale. Frontiers Media S.A. 2022-01-25 /pmc/articles/PMC8821151/ /pubmed/35145955 http://dx.doi.org/10.3389/fchem.2021.809850 Text en Copyright © 2022 Golla, Cozzolino, Nagendra, Vignola, Daniel, Rizzo, Guerra, Auriemma and D’Alterio. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry Golla, Manohar Cozzolino, Antonietta Nagendra, Baku Vignola, Emanuele Daniel, Christophe Rizzo, Paola Guerra, Gaetano Auriemma, Finizia D’Alterio, Massimo Christian Molecular Features Behind Formation of α or β Co-Crystalline and Nanoporous-Crystalline Phases of PPO |
title | Molecular Features Behind Formation of α or β Co-Crystalline and Nanoporous-Crystalline Phases of PPO |
title_full | Molecular Features Behind Formation of α or β Co-Crystalline and Nanoporous-Crystalline Phases of PPO |
title_fullStr | Molecular Features Behind Formation of α or β Co-Crystalline and Nanoporous-Crystalline Phases of PPO |
title_full_unstemmed | Molecular Features Behind Formation of α or β Co-Crystalline and Nanoporous-Crystalline Phases of PPO |
title_short | Molecular Features Behind Formation of α or β Co-Crystalline and Nanoporous-Crystalline Phases of PPO |
title_sort | molecular features behind formation of α or β co-crystalline and nanoporous-crystalline phases of ppo |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8821151/ https://www.ncbi.nlm.nih.gov/pubmed/35145955 http://dx.doi.org/10.3389/fchem.2021.809850 |
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