Structural color from solid-state polymerization-induced phase separation
Structural colors are produced by wavelength-dependent scattering of light from nanostructures. While living organisms often exploit phase separation to directly assemble structurally colored materials from macromolecules, synthetic structural colors are typically produced in a two-step process involving the sequential synthesis and assembly of building blocks. Phase separation is attractive for its simplicity, but applications are limited due to a lack of robust methods for its control. A central challenge is to arrest phase separation at the desired length scale. Here, we show that solid-state polymerization-induced phase separation can produce stable structures at optical length scales. In this process, a polymeric solid is swollen and softened with a second monomer. During its polymerization, the two polymers become immiscible and phase separate. As free monomer is depleted, the host matrix resolidifies and arrests coarsening. The resulting polymeric composites have a blue or white appearance. We compare these biomimetic nanostructures to those in structurally-colored feather barbs, and demonstrate the flexibility of this approach by producing structural color in filaments and large sheets.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:17 |
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| Enthalten in: |
Soft matter - 17(2021), 23 vom: 16. Juni, Seite 5772-5779 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Sicher, Alba [VerfasserIn] |
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| Anmerkungen: |
Date Completed 23.06.2021 Date Revised 20.10.2021 published: Print Citation Status MEDLINE |
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| doi: |
10.1039/d1sm00210d |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM325768099 |
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| 520 | |a Structural colors are produced by wavelength-dependent scattering of light from nanostructures. While living organisms often exploit phase separation to directly assemble structurally colored materials from macromolecules, synthetic structural colors are typically produced in a two-step process involving the sequential synthesis and assembly of building blocks. Phase separation is attractive for its simplicity, but applications are limited due to a lack of robust methods for its control. A central challenge is to arrest phase separation at the desired length scale. Here, we show that solid-state polymerization-induced phase separation can produce stable structures at optical length scales. In this process, a polymeric solid is swollen and softened with a second monomer. During its polymerization, the two polymers become immiscible and phase separate. As free monomer is depleted, the host matrix resolidifies and arrests coarsening. The resulting polymeric composites have a blue or white appearance. We compare these biomimetic nanostructures to those in structurally-colored feather barbs, and demonstrate the flexibility of this approach by producing structural color in filaments and large sheets | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Ganz, Rabea |e verfasserin |4 aut | |
| 700 | 1 | |a Menzel, Andreas |e verfasserin |4 aut | |
| 700 | 1 | |a Messmer, Daniel |e verfasserin |4 aut | |
| 700 | 1 | |a Panzarasa, Guido |e verfasserin |4 aut | |
| 700 | 1 | |a Feofilova, Maria |e verfasserin |4 aut | |
| 700 | 1 | |a Prum, Richard O |e verfasserin |4 aut | |
| 700 | 1 | |a Style, Robert W |e verfasserin |4 aut | |
| 700 | 1 | |a Saranathan, Vinodkumar |e verfasserin |4 aut | |
| 700 | 1 | |a Rossi, René M |e verfasserin |4 aut | |
| 700 | 1 | |a Dufresne, Eric R |e verfasserin |4 aut | |
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