Recyclable liquid-like POSS derivatives with designed structures and their potential for CO2 capture

Six kinds of liquid-like trisilanol isobutyl-POSS derivatives are designed and synthesized to study the influences of their structures on capturing CO 2 . The derivatives are different in bonding types, NH content, flow ability, grafting ratio or molecular size. The CO 2 capture property of these derivatives is tested. It is found that bonding types can affect the recycle property, NH content can affect the chemical absorption , molecular size can affect the physical adsorption, and flow ability can affect both chemical absorption and physical adsorption. Furthermore, the physical adsorption is determining factor that cause differences from liquid-like derivatives to traditional amine based solvents CO 2 absorbents.