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Synthesis and folding behaviour of poly(p-phenylene vinylene)-based β-sheet polychromophores
This contribution describes the design and synthesis of β-sheet-mimicking synthetic polymers comprising distinct poly(p-phenylene vinylene) (PPV) and poly(norbornene) (PNB) backbones with multiple turns. The rod–coil–coil–rod tetrablock copolymers, synthesized using ring-opening metathesis polymeriz...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Royal Society of Chemistry
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6385485/ https://www.ncbi.nlm.nih.gov/pubmed/30881638 http://dx.doi.org/10.1039/c8sc05111a |
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author | Elacqua, Elizabeth Geberth, Geoffrey T. Vanden Bout, David A. Weck, Marcus |
author_facet | Elacqua, Elizabeth Geberth, Geoffrey T. Vanden Bout, David A. Weck, Marcus |
author_sort | Elacqua, Elizabeth |
collection | PubMed |
description | This contribution describes the design and synthesis of β-sheet-mimicking synthetic polymers comprising distinct poly(p-phenylene vinylene) (PPV) and poly(norbornene) (PNB) backbones with multiple turns. The rod–coil–coil–rod tetrablock copolymers, synthesized using ring-opening metathesis polymerization (ROMP) and featuring orthogonal face-to-face π–π stacking and phenyl/perfluorophenyl interactions, show persistent folding both in bulk and at the single molecule level, irrespective of the number of β-turns. Single molecule polarization studies reveal that the copolymers are more anisotropic than the corresponding homopolymers. Examination of the spectral signatures of the single molecules shows a dominant emissive chromophore in the linked materials compared to the homopolymer. The lack of significant spectral changes of the folded materials along with the existence of a dominant emission spectrum supports the proposed structure of well-aligned, minimally-interacting chromophores. Utilization of this reliably folding, phenyl/perfluorophenyl functionality could provide an extremely useful tool in future functional materials design. |
format | Online Article Text |
id | pubmed-6385485 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-63854852019-03-15 Synthesis and folding behaviour of poly(p-phenylene vinylene)-based β-sheet polychromophores Elacqua, Elizabeth Geberth, Geoffrey T. Vanden Bout, David A. Weck, Marcus Chem Sci Chemistry This contribution describes the design and synthesis of β-sheet-mimicking synthetic polymers comprising distinct poly(p-phenylene vinylene) (PPV) and poly(norbornene) (PNB) backbones with multiple turns. The rod–coil–coil–rod tetrablock copolymers, synthesized using ring-opening metathesis polymerization (ROMP) and featuring orthogonal face-to-face π–π stacking and phenyl/perfluorophenyl interactions, show persistent folding both in bulk and at the single molecule level, irrespective of the number of β-turns. Single molecule polarization studies reveal that the copolymers are more anisotropic than the corresponding homopolymers. Examination of the spectral signatures of the single molecules shows a dominant emissive chromophore in the linked materials compared to the homopolymer. The lack of significant spectral changes of the folded materials along with the existence of a dominant emission spectrum supports the proposed structure of well-aligned, minimally-interacting chromophores. Utilization of this reliably folding, phenyl/perfluorophenyl functionality could provide an extremely useful tool in future functional materials design. Royal Society of Chemistry 2018-12-20 /pmc/articles/PMC6385485/ /pubmed/30881638 http://dx.doi.org/10.1039/c8sc05111a Text en This journal is © The Royal Society of Chemistry 2019 https://creativecommons.org/licenses/by-nc/3.0/This article is freely available. This article is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported Licence (CC BY-NC 3.0) |
spellingShingle | Chemistry Elacqua, Elizabeth Geberth, Geoffrey T. Vanden Bout, David A. Weck, Marcus Synthesis and folding behaviour of poly(p-phenylene vinylene)-based β-sheet polychromophores |
title | Synthesis and folding behaviour of poly(p-phenylene vinylene)-based β-sheet polychromophores
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title_full | Synthesis and folding behaviour of poly(p-phenylene vinylene)-based β-sheet polychromophores
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title_fullStr | Synthesis and folding behaviour of poly(p-phenylene vinylene)-based β-sheet polychromophores
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title_full_unstemmed | Synthesis and folding behaviour of poly(p-phenylene vinylene)-based β-sheet polychromophores
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title_short | Synthesis and folding behaviour of poly(p-phenylene vinylene)-based β-sheet polychromophores
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title_sort | synthesis and folding behaviour of poly(p-phenylene vinylene)-based β-sheet polychromophores |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6385485/ https://www.ncbi.nlm.nih.gov/pubmed/30881638 http://dx.doi.org/10.1039/c8sc05111a |
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