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Emission color control in polymer film by memorized fluorescence solvatochromism due to a new class of totally-organic fluorescent nanogel particles.

08:00 EDT 16th May 2019 | BioPortfolio

Summary of "Emission color control in polymer film by memorized fluorescence solvatochromism due to a new class of totally-organic fluorescent nanogel particles."

This paper introduces a new class of totally-organic fluorescent nanogel particles and their exceptionally specific behaviors based on their unique structures, which draws a sharp line from conventional fluorophore-doped and fluorophore-branched type particles. The nanogel particles whose diameters could be controlled by adjusting reaction conditions such as the solvent system, were spontaneously fabricated with a spherical shape by the direct polymerization of non-heterocyclic aromatic compounds such as 2,6-dihydroxyanthracene, 2,6-dihydroxynaphthalene, and 9,9-bis(4-hydroxyphenyl)fluorene with triazinane as a small crosslinker. A fluorophoric moiety formed from a polymer main chain was realized in the particle, and consequently, the resultant content of the fluorophoric moiety was around 70 to 80 wt% per particle. The uniqueness and versatility of the particles can be emphasized by their good compatibility with various solvents due to their amphiphilic and ampholytic swelling properties, but also their remarkable fluorescent solvatochromism in the solution state. Furthermore, these behaviors were preserved even in their polymer composite system. This study also demonstrates that various fluorescent polymer films can be fabricated with emission color control due to memorization of the solvatochromism phenomenon of our fluorescent nanoparticles observed in a solution state.

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Name: Chemistry (Weinheim an der Bergstrasse, Germany)
ISSN: 1521-3765
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