Issue 26, 2018

Fabrication of single-chain nanoparticles through the dimerization of pendant anthracene groups via photochemical upconversion

Abstract

We report on the use of visible light as the driving force for the intramolecular dimerization of pendant anthracene groups on a methacrylic polymer to induce the formation of single-chain nanoparticles (SCNPs). Using a 532 nm green laser light source and platinum octaethylporphyrin as a sensitizer, we first demonstrated the use of TTA-UC to dimerize monomeric anthracene, and subsequently applied this concept to dilute poly((methyl methacrylate)-stat-(anthracenyl methacrylate)) samples. A combination of triple-detection size-exclusion chromatography, atomic force microscopy, and UV-visible spectroscopy confirmed the formation of the SCNPs. This report pioneers the use of TTA-UC to drive photochemical reactions in polymeric systems, and showcases the potential for TTA-UC in the development of nanoobjects.

Graphical abstract: Fabrication of single-chain nanoparticles through the dimerization of pendant anthracene groups via photochemical upconversion

Supplementary files

Article information

Article type
Paper
Submitted
10 Apr 2018
Accepted
08 Jun 2018
First published
22 Jun 2018

Dalton Trans., 2018,47, 8663-8669

Author version available

Fabrication of single-chain nanoparticles through the dimerization of pendant anthracene groups via photochemical upconversion

T. Chidanguro, D. R. Blank, A. Garrett, C. M. Reese, J. M. Schekman, X. Yu, D. L. Patton, N. Ayres and Y. C. Simon, Dalton Trans., 2018, 47, 8663 DOI: 10.1039/C8DT01392F

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