Bio-Inspired Structural Colors Based on Linear Ultrahigh Molecular Weight Block Copolymers
Source abstract
Abstract
Ultrahigh molecular weight (UHMW) block copolymers (BCPs) are promising candidates for the fabrication of photonic materials. Here, we demonstrate the synthesis and self-assembly capability of well-defined amphiphilic UHMW BCPs with overall molar masses up to 4432 kg mol–1 obtained via living anionic polymerization. BCP micelles featuring hydrodynamic diameters in the range of the wavelength of the visible light to the near-infrared region (300–1143 nm) are used for colloidal crystal formation. By varying the BCP composition, brilliant structural colors can be observed. Microphase separation of the UHMW BCPs in the bulk state reveals uniform domains and showing blue to green structural color transitions. Finally, we provide examples of how BCP structural control can be used to generate reversibly switchable solvatochromatic optical sensors.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Supramolecular Self-Assembly in Materials · Advanced Polymer Synthesis and Characterization · Photochromic and Fluorescence Chemistry
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Ernst-Berl-Institue for Chemical Engineering and Macromolecular Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Straße 4, 64287 Darmstadt, Germany
Funding
Deutsche Forschungsgemeinschaft · Verband der Chemischen Industrie
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