Design and development of organosilica/polymer interpenetrating networks derived membranes for high-efficient, robust carbon dioxide capture

2020 Fiscal Year Final Research Report

• Project/Area Number: 19K23576
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0401:Materials engineering, chemical engineering, and related fields
• Research Institution: Hiroshima University
• Principal Investigator: YU LIANG 広島大学, 先進理工系科学研究科(工), 助教 (80816942)
• Project Period (FY): 2019-08-30 – 2021-03-31
• Keywords: organosilica / dual-network / gas separation / carbon capture

Outline of Final Research Achievements

We developed a series of polymer-silica hybrid materials/membranes with interpenetrating dual-network structure. The amine-containing hydrophilic polymers were selected to form the first flexible network while bridged type, hydrophilic organosilica precursors were adopted to form the second rigid network. Effects of polymer type, organosilica source, and catalysis species on the formation of dual-mode hybrid network structure regarding structure stability, microphase separation, and gas separation properties were systematically studied. 1,2- bis(triethoxysilyl)ethane (BTESE) and polyethylenimine (PEI) were found to be very suitable to fabricate robust dual-network structure for CO2 separation with excellent molecular sieving effect. These studies have been presented in several academic conferences and relative research manuscripts have been published in Industrial & Engineering Chemistry Research.

Free Research Field

membrane technology

Academic Significance and Societal Importance of the Research Achievements

The construction and development of advanced membranes that can simultaneously demonstrate high permeance and selectivity and robustness, is significantly important for high-performance CO2 separations in potentially industrial applications (e.g. CO2 removal from flue gas).