期刊
MACROMOLECULES
卷 -, 期 -, 页码 -出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.macromol.2c01894
关键词
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资金
- Australian Research Council (ARC) [FL170100014]
- Deutsche Forschungsgemeinschaft (DFG) under Germany's Excellence Strategy via the Excellence Cluster 3D Matter Made to Order [EXC-2082/1-390761711]
- Queensland University of Technology (QUT)
- ARC [DE200101096]
- KIT
- KIT's Soft Matter Synthesis Laboratory
- Australian Research Council [DE200101096] Funding Source: Australian Research Council
Fluorescent and catalytically active single chain nanoparticle (SCNP) systems can visualize and trace the distribution of catalysts in a reaction system. This study presents a synthetic strategy to produce such SCNPs through a photoactivated reaction under visible light. The compaction of SCNPs is achieved by generating a fluorescent entity, demonstrating a successful reduction in the size of the nanoparticles.
Fluorescent and catalytically active single chain nanoparticle (SCNP) systems allow for the visualization and tracing of the catalyst's distribution in a reaction system. We herein report a synthetic strategy to such SCNPs, generated through a photoactivated reaction at visible light (lambda max = 415 nm) irradiation. Notably, the compaction reaction generates a fluorescent entity via a pro-fluorescent precursor. A polymer backbone (Mn = 21,000 g mol-1 and D = 1.3), carrying phosphine ligands for the coordination of catalytically active gold complexes and the photoreactive ortho- methylbenzaldehyde units and complementary alkyne moieties, was constructed based on nitroxide-mediated polymerization. The synthetic protocol entails an intermediate protection sequence for the catalyst-carrying phosphine unit to enable the installation of the cross-linking entities. The successful compaction of the SCNPs is demonstrated by a reduction in the chain's hydrodynamic volume via size exclusion chromatography and diffusion-ordered NMR spectroscopy.
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