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Preparation of Polymer-Immobilized Polyimide Films Using Hot Pressing and Titania Coatings

[Image: see text] Recent studies have revealed that polymer molecules at film surfaces exhibit unique physical properties compared to those in bulk. On the other hand, such a topic has not been extensively focused for the cases of rigid polymers such as polyimide (PI). This study investigated whethe...

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Autores principales: Hashizume, Mineo, Hirashima, Michihisa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8154877/
https://www.ncbi.nlm.nih.gov/pubmed/33789424
http://dx.doi.org/10.1021/acs.langmuir.1c00605
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author Hashizume, Mineo
Hirashima, Michihisa
author_facet Hashizume, Mineo
Hirashima, Michihisa
author_sort Hashizume, Mineo
collection PubMed
description [Image: see text] Recent studies have revealed that polymer molecules at film surfaces exhibit unique physical properties compared to those in bulk. On the other hand, such a topic has not been extensively focused for the cases of rigid polymers such as polyimide (PI). This study investigated whether hot pressing could induce the immobilization of other polymers, poly(4-vinylphenol) (PVP), on PI film surfaces. Results supported the immobilization of PVP on the PI film surfaces, and the increase of hot-press temperature resulted in the increase of the immobilization amount of PVP. The mechanism of immobilization is discussed considering the effects of hot pressing on the interactions between PVP and PI at the interfaces of their films. Sol–gel titania coatings were further conducted to the obtained PVP-immobilized PI films. The effect of PVP immobilization on formability and the adhesion of titania layers on the film surfaces were evaluated. These results demonstrate that hot pressing of other polymers is a useful approach for the surface modification of PI films, particularly introducing certain functional groups, and indicate that the polymer immobilization mechanism might be correlated with the surface physical properties of PI films.
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spelling pubmed-81548772021-05-27 Preparation of Polymer-Immobilized Polyimide Films Using Hot Pressing and Titania Coatings Hashizume, Mineo Hirashima, Michihisa Langmuir [Image: see text] Recent studies have revealed that polymer molecules at film surfaces exhibit unique physical properties compared to those in bulk. On the other hand, such a topic has not been extensively focused for the cases of rigid polymers such as polyimide (PI). This study investigated whether hot pressing could induce the immobilization of other polymers, poly(4-vinylphenol) (PVP), on PI film surfaces. Results supported the immobilization of PVP on the PI film surfaces, and the increase of hot-press temperature resulted in the increase of the immobilization amount of PVP. The mechanism of immobilization is discussed considering the effects of hot pressing on the interactions between PVP and PI at the interfaces of their films. Sol–gel titania coatings were further conducted to the obtained PVP-immobilized PI films. The effect of PVP immobilization on formability and the adhesion of titania layers on the film surfaces were evaluated. These results demonstrate that hot pressing of other polymers is a useful approach for the surface modification of PI films, particularly introducing certain functional groups, and indicate that the polymer immobilization mechanism might be correlated with the surface physical properties of PI films. American Chemical Society 2021-04-01 2021-04-13 /pmc/articles/PMC8154877/ /pubmed/33789424 http://dx.doi.org/10.1021/acs.langmuir.1c00605 Text en © 2021 American Chemical Society 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 Hashizume, Mineo
Hirashima, Michihisa
Preparation of Polymer-Immobilized Polyimide Films Using Hot Pressing and Titania Coatings
title Preparation of Polymer-Immobilized Polyimide Films Using Hot Pressing and Titania Coatings
title_full Preparation of Polymer-Immobilized Polyimide Films Using Hot Pressing and Titania Coatings
title_fullStr Preparation of Polymer-Immobilized Polyimide Films Using Hot Pressing and Titania Coatings
title_full_unstemmed Preparation of Polymer-Immobilized Polyimide Films Using Hot Pressing and Titania Coatings
title_short Preparation of Polymer-Immobilized Polyimide Films Using Hot Pressing and Titania Coatings
title_sort preparation of polymer-immobilized polyimide films using hot pressing and titania coatings
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8154877/
https://www.ncbi.nlm.nih.gov/pubmed/33789424
http://dx.doi.org/10.1021/acs.langmuir.1c00605
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