LI Yue-sheng, DING Meng-xian, XU Ji-ping. EFFECT OF TEMPERATURE AND PRESSURE ON PERMEABILITY AND PERMSELECTIVITY OF 6FDA-BASED POLYIMIDE MEMBRANES[J]. Acta Polymerica Sinica, 1994,(3):335-341.
LI Yue-sheng, DING Meng-xian, XU Ji-ping. EFFECT OF TEMPERATURE AND PRESSURE ON PERMEABILITY AND PERMSELECTIVITY OF 6FDA-BASED POLYIMIDE MEMBRANES[J]. Acta Polymerica Sinica, 1994,(3):335-341.DOI:
4 -dicarboxyphenyl) hexafluoropropane dianhydride (6FDA)-based polyimide membranes to H2
CO2
O2
N2 and CH4 have been measured at 0. 6MPa and at the temperatures from ambient up to 100 ℃. The temperature and pressure dependency of permeability coefficients of 6FDA-based polyimides is smaller than other standard glassy polymers having more flexible backones. 6FDA-DABP and 6FDA-DMMDA have still higher permeability coefficients at 100℃. The favorable gas separation property
excellent thrmal and mechanical durability
and good processability make 6FDA-DABP and 6FDA-DMMDA to be promis-ing candidate for membrane-based gas separation application.