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Dye‐loaded mechanochromic and pH‐responsive elastomeric opal films

Winter, Tamara ; Boehm, Anna ; Presser, Volker ; Gallei, Markus (2021)
Dye‐loaded mechanochromic and pH‐responsive elastomeric opal films.
In: Macromolecular Rapid Communications, 42 (1)
doi: 10.1002/marc.202000557
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

In this work, the preparation and fabrication of elastomeric opal films revealing reversible mechanochromic and pH‐responsive features are reported. The core–interlayer–shell (CIS) particles are synthesized via stepwise emulsion polymerization leading to hard core (polystyrene), crosslinked interlayer (poly(methyl methacrylate‐co‐allyl methacrylate), and soft poly(ethyl acrylate‐co‐butyl acrylate‐co‐(2‐hydroxyethyl) methacrylate) shell particles featuring a size of 294.9 ± 14.8 nm. This particle architecture enables the application of the melt‐shear organization technique leading to elastomeric opal films with orange, respectively, green brilliant reflection colors dependent on the angle of view. Moreover, the hydroxyl moieties as part of the particle shell are advantageously used for subsequent thermally induced crosslinking reactions enabling the preparation of reversibly tunable mechanochromic structural colors based on Bragg's law of diffraction. Additionally, the CIS particles can be loaded upon extrusion or chemically by a postfunctionalization strategy with organic dyes implying pH‐responsive features. This convenient protocol for preparing multi‐responsive, reversibly stretch‐tunable opal films is expected to enable a new material family for anti‐counterfeiting applications based on external triggers.

Typ des Eintrags: Artikel
Erschienen: 2021
Autor(en): Winter, Tamara ; Boehm, Anna ; Presser, Volker ; Gallei, Markus
Art des Eintrags: Bibliographie
Titel: Dye‐loaded mechanochromic and pH‐responsive elastomeric opal films
Sprache: Englisch
Publikationsjahr: 2021
Ort: Weinheim
Verlag: Wiley-VCH
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Macromolecular Rapid Communications
Jahrgang/Volume einer Zeitschrift: 42
(Heft-)Nummer: 1
Kollation: 7 Seiten
DOI: 10.1002/marc.202000557
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Kurzbeschreibung (Abstract):

In this work, the preparation and fabrication of elastomeric opal films revealing reversible mechanochromic and pH‐responsive features are reported. The core–interlayer–shell (CIS) particles are synthesized via stepwise emulsion polymerization leading to hard core (polystyrene), crosslinked interlayer (poly(methyl methacrylate‐co‐allyl methacrylate), and soft poly(ethyl acrylate‐co‐butyl acrylate‐co‐(2‐hydroxyethyl) methacrylate) shell particles featuring a size of 294.9 ± 14.8 nm. This particle architecture enables the application of the melt‐shear organization technique leading to elastomeric opal films with orange, respectively, green brilliant reflection colors dependent on the angle of view. Moreover, the hydroxyl moieties as part of the particle shell are advantageously used for subsequent thermally induced crosslinking reactions enabling the preparation of reversibly tunable mechanochromic structural colors based on Bragg's law of diffraction. Additionally, the CIS particles can be loaded upon extrusion or chemically by a postfunctionalization strategy with organic dyes implying pH‐responsive features. This convenient protocol for preparing multi‐responsive, reversibly stretch‐tunable opal films is expected to enable a new material family for anti‐counterfeiting applications based on external triggers.

Freie Schlagworte: elastomeric opals, functional polymers, photonic crystals, self‐assembly, stimuli‐responsive materials
ID-Nummer: Artikel-ID: 2000557
Zusätzliche Informationen:

Special Issue: Mechanochromic Polymers

Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 540 Chemie
Fachbereich(e)/-gebiet(e): 07 Fachbereich Chemie
07 Fachbereich Chemie > Ernst-Berl-Institut
07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Makromolekulare Chemie
Hinterlegungsdatum: 31 Jan 2024 07:35
Letzte Änderung: 31 Jan 2024 07:35
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