Self-assembled heterogeneous late transition-metal catalysts for ethylene polymerization; New approach to simple preparation of iron and nickel complexes immobilized in clay mineral interlayer

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• 作者：Hideki Kurokawa ; Masashi Hayasaka ; Kazuhiro Yamamoto ; Tsutomu Sakuragi ; Masa-aki Ohshima ; Hiroshi Miura
• 关键词：Montmorillonite ; Fluorotetrasilicic mica ; Saponite ; Intercalation ; Ion-exchange
• 刊名：Catalysis Communications
• 出版年：5 March, 2014
• 年：2014
• 卷：47
• 期：Complete
• 页码：13-17
• 全文大小：562 K

文摘

To develop heterogeneous catalysts for ethylene polymerization, bis(imino)pyridineiron(III), 伪-diiminenickel(II), and iminopyridinenickel(II) complexes were immobilized in the clay mineral (montmorillonite, fluorotetrasilicic mica or saponite) interlayers by a one-pot preparation method. In this method, the Fe^3 +- and Ni^2 +-exchanged clay minerals as an acid catalyst promoted the ligand formation from a ketone derivative and an aniline derivative, and then the formed ligand simultaneously coordinated to the metal ions located in the clay mineral interlayer. The obtained heterogeneous catalysts showed 100-3,000 g-PE g-cat^鈭?#xA0;1 h^鈭?#xA0;1 as activities for the ethylene polymerization/oligomerization.