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668420-70-0

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668420-70-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 668420-70-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,8,4,2 and 0 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 668420-70:
(8*6)+(7*6)+(6*8)+(5*4)+(4*2)+(3*0)+(2*7)+(1*0)=180
180 % 10 = 0
So 668420-70-0 is a valid CAS Registry Number.

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.

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