Utilizing Reversible Interactions in Polymeric Nanoparticles To Generate Hollow Metal–Organic Nanoparticles
作者:Longyu Li、Conghui Yuan、Dongming Zhou、Alexander E. Ribbe、Kevin R. Kittilstved、S. Thayumanavan
DOI:10.1002/anie.201505242
日期:2015.10.26
The use of reversible linkers in polymers has been of interest mainly for biomedical applications. Herein, we present a novel strategy to utilizereversibleinteractions in polymericnanoparticles to generatehollowmetal–organicnanoparticles (MOPs). These hollow MOPs are synthesized from self‐assembled polymericnanoparticles using a simple metal–comonomer exchange process in a single step. The control
Cooperative polymerization, aided by the nucleationelongation mechanism, has the promise of providing polymers and nanostructures that are otherwise inaccessible. The molecular origin of the cooperative growth of polymers is driven by a secondary interaction, often based on polarization, electrostatics, or sterics-driven secondary structure. Here, we demonstrate that covalent dative interactions can be used to achieve cooperative polymerization. Our results suggest that the initial polymer formation serves as the nucleus for monodisperse nanoparticle assembly. The dynamic nature of the dative interaction in this equilibrium self-assembly has been shown to endow these nanoparticles with thermal responsive characteristics.