Chemistry Letters, Vol.48, No.11, 1351-1354, 2019
Ultra-fast, Selective CO2 Permeation by Free-standing Siloxane Nanomembranes
Fabrication and gas permselective behavior of free-standing polydimethylsiloxane (PDMS) nanomembranes are discussed. The largest CO2 permeance is close to 40,000GPU (the highest one ever reported) at 34-nm membrane thickness without losing the CO2/N-2 selectivity of 10-12, indicating the formation of pin-hole free nanomembranes.