In Situ Formation of Polymer–Gold Composite Nanoparticles with Tunable Morphologies
作者： Richard Bleach , Bunyamin Karagoz , Shyam M. Prakash , Thomas P. Davis , Cyrille Boyer
DOI: 10.1021/MZ500195U
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摘要: A simple and efficient route to gold–polymer nanoparticle composites is described. Our versatile synthetic exerts facile control over polymer morphology, including micelles, rod-like structures, vesicles, all easily attainable from a single polymerization taken different monomer conversions. Specifically, poly[oligo(ethylene glycol) methacrylate]-b-poly(dimethylaminoethyl methacrylate)-b-poly(styrene) (POEGMA-b-PDMAEMA-b-PST) triblock copolymers were synthesized using induced self-assembly (PISA) approach. Subsequently, spherical gold nanoparticles (10 nm AuNPs) formed at the hydrophilic–hydrophobic nexus of assembled copolymer nanoaggregates by addition chloroauric acid (HAuCl4) followed in situ reduction NaBH4. After reduction, cloudy white dispersions turned red-purple color. The that stabilized enveloping polymeric nanostructures, neither precipitation nor agglomerat...
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