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In-Situ Immobilization of Ni Complex on Amine-Grafted SiO₂ for Ethylene Polymerization

In-Situ Immobilization of Ni Complex on Amine-Grafted SiO₂ for Ethylene Polymerization

Sang Yun Lee, Young Soo Ko

J Nanosci Nanotechnol. 2018 Feb 1;18(2):1435-1438.

PMID: 29448607

Abstract:

The results on the In-Situ synthesis of Ni complex on amine-grafted SiO2 and its ethylene polymerization were explained. SiO2/2NS/(DME)NiBr2 and SiO2/3NS/(DME)NiBr2(Ni(II) bromide ethylene glycol dimethyl ether) catalysts were active for ethylene polymerization. The highest activity was shown at the polymerization temperature of 25 °C, and SiO2/2NS/(DME)NiBr2 exhibited higher activity than SiO2/3NS/(DME)NiBr2. The PDI values of SiO2/2NS/(DME)NiBr2 were in the range of 8~18. The aminosilane compounds and Ni were evenly grafted and distributed in the silica. It was proposed that DME ligand was mostly removed during the supporting process, and only NiBr2 was complexed with the amine group of 2NS based on the results of FT-IR and ethylene polymerization.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP28923399	Nickel(II) bromide ethylene glycol dimethyl ether complex		28923-39-9	Price

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