초록 |
In order to improve the selectivity and the stability for gas permeation of poly(1-trimethylsilyl-1-propyne) (PTMSP) membrane, it was chemically modified by grafting polydimethylsiloxane (PDMS) chains. Nonocomposite membrane has been made to incorporate silica into PTMSP/PDMS graft copolymer to improve its properties for the separation of gas mixture were synthesized by sol-gel copolymerization of tetraethoxysilane (TEOS) in tetrahydrofuran solution of PTMSP/PDMS graft copolymer. The separation properties of the membrane prepared are characterized by permeability measurements for N2-H2 gas mixture. The membrane was charaterized by 1H-NMR, FT-IR, SEM, TGA, GPC, and DSC. |