Preparation of aluminum-boron cluster compounds and their application as cocatalysts of olefin polymerization

2016 Fiscal Year Final Research Report

• Project/Area Number: 26810070
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Polymer chemistry
• Research Institution: Hiroshima University
• Principal Investigator: Tanaka Ryo 広島大学, 工学研究院, 助教 (60640795)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: オレフィン重合 / 助触媒 / アルミノキサン / クラスター化合物 / 有機ホウ素化合物

Outline of Final Research Achievements

Boron-moiety-containing aluminoxanes were prepared from Me3Al and various arylboronic acids and compared its cocatalyst ability of olefin polymerization with methylaluminoxane (MAO), which is versatile activator of transition-metal catalysts. Incorporation of electron-withdrawing group and boron atoms to MAO greatly improved the cocatalyst ability of propylene polymerization using various group 4 metal complexes. Several spectroscopic analyses such as DOSY, 27Al, 11B NMR and IR spectroscopy revealed that the increase of cocatalyst ability is owing to the increase of Lewis acidity and bulkiness of aluminum by the incorporation of boron moieties.

Free Research Field

高分子合成化学