Gas Separation Membranes Based on Germanium Containing Polyalkylenesiloxane

Autor: Borisov, Ilya L., Ushakov, Nikolay, Grushevenko, Evgenia, Finkel’stein, Evgeny, Volkov, Vladimir
Zdroj: Key Engineering Materials; October 2020, Vol. 869 Issue: 1 p45-50, 6p
Abstrakt: An original method for the synthesis of monomer for the preparation of a new membrane polymer, 2,2,4,4,6,6-hexamethyl-1-oxa-2,6-disyl-4-germanocyclohexane, is proposed, which allows increasing the yield of the target substance. By polycondensation polymerization, a membrane-forming germanium-containing polycarbosiloxane was synthesized. Based on it, new highly permeable membranes with high selectivity of butane / methane were first obtained and studied. When comparing the transport properties of silicon and germanium-containing polymers, it was found that polycarbosiloxane containing germanium atoms in the main chain shows higher values of butane selectivity and permeability.
Databáze: Supplemental Index