Abstract:
Mesoporous MCM-48 was synthesized from silatrane via sol-gel process and mixed with polybenzoxazine (PBZ) to fabricate mixed-matrix membranes (MMMs) for gas separation. The performance of the membranes was investigated as a function of filler loading. The permeance of CH4 and CO2 increased with increasing MCM-48 loading was more strongly affected by the gas diffusivity than by the gas solubility. The selectivity had a maximum at 10 wt.% loading that related to the good interaction between MCM-48 and PBZ matrix and that the MMM was defect free, as indicated in the characterization done by SEM, ATR-FTIR and DSC.
