Fig. 5: Gas separation performance of Matrimid-Cyclen membranes compared with other polymeric membranes. | Nature Communications

Fig. 5: Gas separation performance of Matrimid-Cyclen membranes compared with other polymeric membranes.

From: Mixed-matrix membranes with molecular recognition windows for selective helium extraction from natural gas

Fig. 5: Gas separation performance of Matrimid-Cyclen membranes compared with other polymeric membranes.

Plots of a He/N2, b He/CH4, c H2/N2, d H2/CH4, e CO2/N2 and f CO2/CH4 separation performance. (The red symbols are gas data of fresh membranes, while the blue ones are gas data of membranes after physical aging, the black symbols are Matrimid-based membranes. Lines are drawn to guide eyes.) g, h Gas separation performance of mixed matrix membranes (Matrimid-Cyclen-1% membrane, Matrimid-Cyclodecane-1% membrane, Matrimid-Piperazine-1% membrane and Matrimid-Hexacyclen-1% membrane) prepared with different fillers (Cyclen, Cyclodecane, Piperazine and Hexacyclen) at 1% loading. i Gas-transport mechanism in Matrimid-Cyclen membranes.

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