Composite particles consisting of gold nanoparticles (AuNPs) surrounded by a thermally responsive polymer derived from the copolymerization of N-isopropyl acrylamide (NIPAM) and acrylamide (AAm) were designed and tested as recyclable catalysts in various chemical reactions. The systematic incorporation of AuNPs into the PNIPAM-AAm copolymer particles was achieved by an <i>in sit</i>u method under light irradiation. The structural features (e.g., size, shape, and distribution) and overall loading efficiency of the integrated AuNPs were strongly influenced by the copolymer particle network and functional groups. The resulting composite particles were then tested as a catalyst in the C-C bond-forming reaction under various conditions including reaction time, temperature, base type, and catalyst amount to optimize their reactivity and selectivity as well as their recyclability. Understanding the influence of host polymer networks on the <i>in situ</i> formation of guest metal nanoparticles, as well as their structural and catalytic properties, is important for the development of novel and practical catalysts that can be utilized in various chemical transformation reactions

Effects of functional polymer particles on the formation of gold nanoparticles and their catalytic properties

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