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Nanoporous Films with Photoswitchable Absorption Kinetics Based on Polymerizable Columnar Discotic Liquid Crystals
[Image: see text] A photoresponsive nanoporous polymer film has been produced from the templated self-assembly of a columnar liquid crystal containing azo units. A liquid crystalline complex of polymerizable azobenzoic acid and a tris-benzimidazolyl benzene template molecule was cross-linked via thi...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7844832/ https://www.ncbi.nlm.nih.gov/pubmed/33430592 http://dx.doi.org/10.1021/acsami.0c19180 |
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author | Lugger, Jody A. M. Marín San Román, Patricia P. Kroonen, Camiel C. E. Sijbesma, Rint P. |
author_facet | Lugger, Jody A. M. Marín San Román, Patricia P. Kroonen, Camiel C. E. Sijbesma, Rint P. |
author_sort | Lugger, Jody A. M. |
collection | PubMed |
description | [Image: see text] A photoresponsive nanoporous polymer film has been produced from the templated self-assembly of a columnar liquid crystal containing azo units. A liquid crystalline complex of polymerizable azobenzoic acid and a tris-benzimidazolyl benzene template molecule was cross-linked via thiol-ene radical copolymerization with dodecanedithiol. Subsequent removal of the template yielded nanoporous polymer films with pores of approximately 1 nm in diameter. Both trans–cis and cis–trans photoisomerizations of azobenzoic acid took place in the porous films. At room temperature, the cis isomer was sufficiently long-lived to establish a difference in dye absorption kinetics of the two isomers. The cationic dye rhodamine 6G was bound to both isomers, but the rate of binding to films enriched in the cis isomer was 8 times faster. |
format | Online Article Text |
id | pubmed-7844832 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-78448322021-01-29 Nanoporous Films with Photoswitchable Absorption Kinetics Based on Polymerizable Columnar Discotic Liquid Crystals Lugger, Jody A. M. Marín San Román, Patricia P. Kroonen, Camiel C. E. Sijbesma, Rint P. ACS Appl Mater Interfaces [Image: see text] A photoresponsive nanoporous polymer film has been produced from the templated self-assembly of a columnar liquid crystal containing azo units. A liquid crystalline complex of polymerizable azobenzoic acid and a tris-benzimidazolyl benzene template molecule was cross-linked via thiol-ene radical copolymerization with dodecanedithiol. Subsequent removal of the template yielded nanoporous polymer films with pores of approximately 1 nm in diameter. Both trans–cis and cis–trans photoisomerizations of azobenzoic acid took place in the porous films. At room temperature, the cis isomer was sufficiently long-lived to establish a difference in dye absorption kinetics of the two isomers. The cationic dye rhodamine 6G was bound to both isomers, but the rate of binding to films enriched in the cis isomer was 8 times faster. American Chemical Society 2021-01-12 2021-01-27 /pmc/articles/PMC7844832/ /pubmed/33430592 http://dx.doi.org/10.1021/acsami.0c19180 Text en © 2021 The Authors. Published by American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes. |
spellingShingle | Lugger, Jody A. M. Marín San Román, Patricia P. Kroonen, Camiel C. E. Sijbesma, Rint P. Nanoporous Films with Photoswitchable Absorption Kinetics Based on Polymerizable Columnar Discotic Liquid Crystals |
title | Nanoporous
Films with Photoswitchable Absorption Kinetics
Based on Polymerizable Columnar Discotic Liquid Crystals |
title_full | Nanoporous
Films with Photoswitchable Absorption Kinetics
Based on Polymerizable Columnar Discotic Liquid Crystals |
title_fullStr | Nanoporous
Films with Photoswitchable Absorption Kinetics
Based on Polymerizable Columnar Discotic Liquid Crystals |
title_full_unstemmed | Nanoporous
Films with Photoswitchable Absorption Kinetics
Based on Polymerizable Columnar Discotic Liquid Crystals |
title_short | Nanoporous
Films with Photoswitchable Absorption Kinetics
Based on Polymerizable Columnar Discotic Liquid Crystals |
title_sort | nanoporous
films with photoswitchable absorption kinetics
based on polymerizable columnar discotic liquid crystals |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7844832/ https://www.ncbi.nlm.nih.gov/pubmed/33430592 http://dx.doi.org/10.1021/acsami.0c19180 |
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