Controllable Synthesis of Metal-Organic Framework/Polyethersulfone Composites

Abstract

Composite materials that contain metal-organic frameworks (MOFs) as a filler and a polymer matrix have attracted attention because they present a combination of high porosity and structural integrity. Phase compatibilities of the MOF and polymer play a vital role in the formation of the composites. In particular, the stiff polymer cannot easily adapt to penetrate into the surface pore of MOF and mainly depends on chemical attractions to form the MOF/polymer composites. We report the synthesis of MOF/polyethersulfone (Young’s modulus = ~2.6 GPa) via different fabrication methods, different MOF types and particle sizes, and different solvents. The formed network structures are robust, monolithic composites with 60% MOF loadings; also, the MOF surface area and porosity were fully preserved. The study explored the formation of the composite between MOF and a stiff polymer and encourages the design of more MOF/polymer composite materials across a wide range of applications.

Progress of polyethersulfone composites and their applications in biomedical engineering

“…52 Additionally, the active sites density on the surface of MOFs was 0.04 Å À3 , 0.02 Å À3 and 0.03 Å À3 for NH in ZIF-8, CH 3 in HKUST-1 and OH in UiO-66, separately, which suggested that there were more H-bonding interactions at the interface of PES and ZIF-8 than other MOFs. Thus, ZIF-8 can be directly used in PES MMMs [53][54][55][56] whereas HKUST-1 and UiO-66 demand further modification. For example, in Muayad et al's research, they employed chlorosulfonic acid to graft the amino group of UiO-66-NH 2 as well as coupling the sulfonated PES matrix.…”

Adsorption and Degradation of Volatile Organic Compounds by Metal–Organic Frameworks (MOFs): A Review

“…In addition, the direction of the entire reaction can be adjusted by changing the amount of solvent added in the early stage of the reaction. Guo et al [ 104 ] dispersed the MOF powder into a solvent by mechanical stirring, and then dissolved the polymer into the MOF solution to obtain an MOF/polymer suspension. The solvent in the suspension was then evaporated by solvent evaporation, followed by precipitation of polymer and MOF to obtain MOF/polymer composite.…”

Synergistic flame‐retardant effect of modified hydrotalcite and expandable graphite for silicone rubber foam

“…Therefore, it is necessary to further improve the flame retardant properties of SRF materials. Additive flame retardants are widely used in polymer flame retardants because of their non‐toxicity, smoke suppression, low price, and good stability, such as graphene, 14 metal–organic frameworks, 15 expandable graphite, 16 bio‐based, 17 hydrotalcite, 18 rare earth coupling agents, 19 and so on.…”