Polymer

Recent efforts aimed at minimizing membrane fouling have emphasized an increasing demand for on-line monitoring in an effort to accurately predict membrane performance. To this end, an in situ bacterial monitoring system was developed that is integrated within the membrane. Because the target is bac

Correlations between positron annihilation lifetime spectroscopy (PALS) measurement and diffusivities in polymer solutions were established, with the help of the Simha–Somcynsky (SS) equation-of-state (EOS) and the free-volume theory. Mean hole volume probed by PALS was employed to predict the free

Mixed matrix membranes of 6FDA-6FpDA-DABA, a glassy polyimide, and modified zeolites (ZSM-2) were successfully fabricated using the procedure outlined in this paper. The membranes were cast from solution and then exposed to different gases for the purpose of determining and comparing the diffusivity