摘要:
The disclosure provides a catalyst carrier, including a nano carbon material; and a polymer grafted on the nano carbon material, wherein the polymer has a repetitive unit comprising a phosphorous atom. The disclosure further provides a catalyst deposited on the catalyst carrier of the disclosure. The catalyst of the disclosure has high reactivity, and is easy to be recovered in C—C coupling reactions such as a Suzuki-Miyaura coupling reaction.
摘要:
The present disclosure is related to a carbon-nanomaterial-supported catalyst, including: a carbon nanomaterial, and a polymer grafted onto the carbon nanomaterial, wherein the polymer has a repeat unit containing a phosphonium salt and its molecular weight is 1,000-200,000. The disclosure is also related to a method of preparing carbonate, which includes using the carbon nanomaterial-supported catalyst for the cycloaddition reaction of carbon dioxide into the epoxy group.
摘要:
The disclosed is a comb-shaped graft copolymer, including a back bone of PMMA and side chains of a random copolymer, a block copolymer, or a homopolymer polymerized of a monomer having a carbon-carbon double bond. The monomer can be alkyl acrylate, styrene, and the likes. The side chains terminal is grafted to a nitro-oxy compound.
摘要:
The disclosure provides a catalyst carrier, including a nano carbon material; and a polymer grafted on the nano carbon material, wherein the polymer has a repetitive unit comprising a phosphorous atom. The disclosure further provides a catalyst deposited on the catalyst carrier of the disclosure. The catalyst of the disclosure has high reactivity, and is easy to be recovered in C—C coupling reactions such as a Suzuki-Miyaura coupling reaction.
摘要:
An electrode assembly of an electrosurgical knife in which a metallic conduit is used as a conductive passage is provided on an outer sleeve of the electrosurgical knife. The electrode assembly includes a metallic conduit. The rear end of the metallic conduit is connected with a conduit within the outer sleeve. The outer periphery of a front end of the metallic conduit is provided with an insulating sleeve. The insulating sleeve is assembled with the mouth of the outer sleeve. Further, the mouth of the metallic conduit is provided with an electrode block and is connected with the insulating sleeve. Finally, the outer sleeve is provided with an electrode lead therein. The lead is electrically connected with the metallic conduit. With the electrode conduit, an external power supply can be conducted to the electrode block via the metallic conduit, so that the electrode assembly of the electrosurgical knife can perform a normal action. In this way, the convenience in assembling the electrosurgical knife can be improved.
摘要:
The disclosed is a comb-shaped graft copolymer, including a back bone of PMMA and side chains of a random copolymer, a block copolymer, or a homopolymer polymerized of a monomer having a carbon-carbon double bond. The monomer can be alkyl acrylate, styrene, and the likes. The side chains terminal is grafted to a nitro-oxy compound.
摘要:
The present disclosure is related to a carbon-nanomaterial-supported catalyst, including: a carbon nanomaterial, and a polymer grafted onto the carbon nanomaterial, wherein the polymer has a repeat unit containing a phosphonium salt and its molecular weight is 1,000-200,000. The disclosure is also related to a method of preparing carbonate, which includes using the carbon nanomaterial-supported catalyst for the cycloaddition reaction of carbon dioxide into the epoxy group.