Self-assembly of three-dimensional zeolite imidazolate framework/anionic polyacrylamide network with enhanced hydrophilicity and water dispersibility for highly efficient water purification

A biomimetic closed-loop recyclable, long-term durable, extreme-condition resistant, flame-retardant nanocoating synthesized by reversible flocculation assembly

“…The typical peaks of CO (1668 cm −1 ) and C–N (1142 cm −1 ) for PAM and Si–O (980 cm −1 ) for SEP shifted to 1660 cm −1 , 1123 cm −1 , and 968 cm −1 for PAM/SEP after complexation, respectively. 38–40 Furthermore, the typical temperature evolution of the FTIR bands for PAM/SEP in Fig. 1d and f demonstrated hydrogen-bond complexation assembly.…”

Construction of effective transmission channels by anchoring metal‐organic framework on side‐chain sulfonated poly(arylene ether ketone sulfone) for fuel cells

“…It has the dual characteristics of being both a proton acceptor and a proton donor because of its unsaturation and easy binding to H + . The imidazole groups in ZIF‐67 contributes a part of the dissociated protons, thus improving the IEC values of the membranes 45 . However, IEC decreased slightly when ZIF‐67 content was 15%, it was mainly because of excessive ZIF‐67 would lead to aggregation.…”

“…When the ZIF‐67 content was higher and the water uptake of this series of membranes was decreased. Moreover, ZIF‐67 was a porous crystalline material with a zeolite imidazolate frame and cross‐linked with a transition metal through an organic imidazolate to form a dodecahedral frame 25,45 . Compared to Nafion117 (29.4% at 80°C) 24 and H 2 SO 4 @MIL‐101/CS (35% at 80°C), 46 the Am‐S‐D‐AMPS/ZIF‐67‐10% (41.12% at 80°C) showed a higher water uptake.…”

“…The imidazole groups in ZIF-67 contributes a part of the dissociated protons, thus improving the IEC values of the membranes. 45 However, IEC decreased slightly when ZIF-67 content was 15%, it was mainly because of excessive ZIF-67 would lead to aggregation.…”