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Microspheres from light—a sustainable materials platform

Delafresnaye, Laura ; Feist, Florian 1; Hooker, Jordan P.; Barner-Kowollik, Christopher
1 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)

Abstract:

Driven by the demand for highly specialized polymeric materials via milder, safer, and sustainable processes, we herein introduce a powerful, purely light driven platform for microsphere synthesis – including facile synthesis by sunlight. Our light-induced step-growth precipitation polymerization produces monodisperse particles (0.4–2.4 μm) at ambient temperature without any initiator, surfactant, additive or heating, constituting an unconventional approach compared to the classically thermally driven synthesis of particles. The microspheres are formed via the Diels-Alder cycloaddition of a photoactive monomer (2-methylisophthaldialdehyde, MIA) and a suitable electron deficient dienophile (bismaleimide). The particles are stable in the dry state as well as in solution and their surface can be further functionalized to produce fluorescent particles or alter their hydrophilicity. The simplicity and versatility of our approach introduces a fresh opportunity for particle synthesis, opening access to a yet unknown material class.


Verlagsausgabe §
DOI: 10.5445/IR/1000150646
Veröffentlicht am 27.09.2022
Originalveröffentlichung
DOI: 10.1038/s41467-022-32429-3
Scopus
Zitationen: 9
Web of Science
Zitationen: 9
Dimensions
Zitationen: 10
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 2041-1723
KITopen-ID: 1000150646
HGF-Programm 43.32.01 (POF IV, LK 01) Molecular Materials Basis for Optics & Photonics
Erschienen in Nature Communications
Verlag Nature Research
Band 13
Heft 1
Seiten Art.Nr. 5132
Vorab online veröffentlicht am 01.09.2022
Nachgewiesen in Web of Science
Dimensions
Scopus
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