Abstract
Aiming at development of hydrogen separation membranes, optimum conditions for preparation of SiC-based membranes from polycarbosilane, and effects of a cross-linking agent (p-diethynylbenzene) and a pore-making agent (polystyrene) on the membrane performance were investigated. It was shown from derivative thermogravimetric curves that DTG peak of these starting materials agreed with the pyrolysis temperature at which highest SF6 permeance and H2 and N2 permeance was obtained, indicating that volatilization species affect the pore size distribution of membranes.
