668420-70-0Relevant articles and documents
Anisotropic self-assembly of gold nanoparticle grafted with polyisoprene and polystyrene having symmetric polymer composition
Nakano, Tatsuhiro,Kawaguchi, Daisuke,Matsushita, Yushu
, p. 6798 - 6801 (2013)
Methodology to self-assemble metal nanoparticles into three-dimensional mesoscale patterns is a fundamental technique to construct functional materials. Here, we demonstrate that hybridizing an immiscible polymer pair with a metal nanoparticle allows the hybrid to self-assemble in the film, resulting in spontaneous alignment of the nanoparticles at the phase-separated interface formed by the constituent polymers. Organic-inorganic hybrids composed of polyisoprene, polystyrene, and gold nanoparticle were prepared by multistep "grafting-to" method coupled with alkyne-azide click reaction. The polymer composition can be controlled by the feed ratio of gold nanoparticle to azide ligands. The gold nanoparticle hybrid with symmetric polymer composition forms an "alternating lamellar" structure of polyisoprene and polystyrene, where the gold nanoparticles were forced into the phase-separated interfaces.
A versatile synthetic strategy for nanoporous gold-organic hybrid materials for electrochemistry and photocatalysis
Wichmann, Andre,Schnurpfeil, Günter,Backenk?hler, Jana,Kolke, Lena,Azov, Vladimir A.,W?hrle, Dieter,B?umer, Marcus,Wittstock, Arne
, p. 6127 - 6133 (2014/12/10)
Nanoporous gold (npAu) was employed as high surface area substrate for immobilization of redox- and photooxidative-active organic molecules. A two-step synthetic routine is demonstrated as a versatile and robust method for immobilization of various molecu
Reactions in elastomeric nanoreactors reveal the role of force on the kinetics of the Huisgen reaction on surfaces
Han, Xu,Bian, Shudan,Liang, Yong,Houk,Braunschweig, Adam B.
, p. 10553 - 10556 (2014/08/18)
The force dependence of the copper-free Huisgen cycloaddition between an alkyne and a surface-bound azide was examined in elastomeric nanoreactors. These studies revealed that pressure and chain length are critical factors that determine the reaction rate. These experiments demonstrate the central role of pressure and surface structure on interfacial processes that are increasingly important in biology, materials science, and nanotechnology.