Abstract
AbstractCombining gold nanoparticles (GNP) with stimuli‐responsive polymers is a fascinating field for applications as sensor materials or in biomedical applications. The synthesis of multiresponsive Au@Polymer hybrid systems in an in situ approach using tailor‐made poly(2‐(dimethylamino)ethyl methacrylate) (P(DMAEMA)) precursor synthesized via reversible addition–fragmentation chain transfer (RAFT) polymerization is introduced. In particular, because of its multiresponsive behavior, P(DMAEMA) is of great interest and is used as the precursor for the synthesis. For the polymerization of the precursor, an approach is introduced that applies the photoiniferter RAFT (photoRAFT) mechanism applicable for tertiary amine‐bearing methacrylic monomers like DMAEMA. By varying the chain transfer agents (CTA), the influence of different RAFT Z‐groups on the solubility of the Au‐hybrids is studied. Aging effects are observed by transmission electron microscopy (TEM) analyses. A comprehensive dynamic light scattering (DLS) study reveals the thermoresponsive behavior of the Au‐hybrids in an aqueous solution. The influence of free polymer in solution on the suspension stability is observed. The capability of crosslinking using 1,5‐dibromopentane (DBP) and the CO2 sensitivity of the synthesized hybrids expands the area of their potential application.
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