Organosilane modified silica/polydimethylsiloxane mixed matrix membranes for enhanced propylene/nitrogen separation
Abstract(#br)Gas transport behaviors of oxygen (O 2 ), nitrogen (N 2 ) and propylene (C 3 H 6 ) in polydimethylsiloxane (PDMS) mixed matrix membranes (MMM) containing modified silica (SiO 2 ) nanoparticles are presented. Two surface modified SiO 2 nanoparticles, silica dimethyloctyl silane (Si-DMOS) and silica dimethylphenyl silane (Si-DMPS), were used as fillers. Surface modification was carried out through silanization, which was confirmed via Fourier transform infrared spectroscopy.