Journal
RSC ADVANCES
Volume 4, Issue 45, Pages 23876-23885Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra01770f
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Funding
- National Science Centre [DEC-2011/01/B/ST5/03941]
- CePT Project [POIG.02.02.00-14-024/08-00]
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This paper describes a novel route to the synthesis of core-shell nanostructures utilizing Nitroxide Mediated Radical Polymerization (NMRP). The hybrid nanostructures with nanogold cores and precisely designed polystyrene shells (PDI < 1.3) have been synthesized through late injection of TEMPO coated gold nanoparticles into a TEMPOL (4-hydroxy-TEMPO) mediated styrene polymerization system. Thermal analyses have shown that the thus obtained polystyrene modified gold nanoparticles are significantly more stable to the thermal treatment than only thiol-stabilized gold nanoparticles (aggregation has not been observed even at 300 degrees C). The obtained materials exhibit intensive surface plasmon resonance (SPR) observed near 520 nm that provides an opportunity to apply them as high-temperature optical sensors. The proposed procedure allows for precise synthesis of tailor-made nanohybrids via macroradical coupling.
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