The pivotal step of nanoparticle functionalization for the preparation of functional and magnetic hybrid opal films

摘要: The preparation of hierarchical and sophisticated particle architectures for mimicking structural colors known from nature still remains a challenge. In this study, the novel opal double-inverse films based on thermally treated metallopolymer core particles with silica shell is described. Thermal treatment leads to formation magnetic nanorattle-type particles. main challenge artificial ensure sufficient dispersibility after several synthetic steps. Especially providing surface hydroxyl groups tend sinter at high temperatures leading agglomeration. We present introduction trimethyl ethoxy silane (TMES) as an excellent functionalization reagent key reaction step. necessity success are investigated by transmission electron microscopy (TEM) zeta potential measurements. Importantly, solid state NMR techniques employed gain deeper insights into chemical structure surface-attached reagent. Finally, convenient elastomeric proven successful revealing optical film properties. Moreover, properties these using force (MFM). herein established route expected pave way variety advanced stimuli-responsive materials.