Abstract
Pervaporation is an energy-saving membrane technology and has been used for organic dehydration in industry. Nevertheless, new membrane materials with high performance are still on demand. Here, a number of 20–50 nm thick, novel benzimidazole-linked polymer (BILP) membranes are fabricated by a facial interfacial polymerization (IP) protocol. The structures are characterized and dehydration performance of acid, alcohol and ester was evaluated. The relationships among preparation parameters, membrane structures and performance were established, revealing that the synergistic effect of post crosslinking and heating is mandatory and conducive to membrane selectivity. The membranes provide a separation factor > 10000, a total flux of 363 g/m2/h and an excellent stability for dehydration of ethyl acetate. The separation factor is ranked as the highest compared with other polymer membranes with equivalent flux.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
