Mixed Matrix Membranes of Boron Icosahedron and Polymers of Intrinsic Microporosity (PIM-1) for Gas Separation
نویسندگان
چکیده
This work reports on the preparation and gas transport performance of mixed matrix membranes (MMMs) based on the polymer of intrinsic microporosity (PIM-1) and potassium dodecahydrododecaborate (K₂B12H12) as inorganic particles (IPs). The effect of IP loading on the gas separation performance of these MMMs was investigated by varying the IP content (2.5, 5, 10 and 20 wt %) in a PIM-1 polymer matrix. The derived MMMs were characterized by scanning electron microscopy (SEM), thermogravimetric analysis (TGA), single gas permeation tests and sorption measurement. The PIM1/K₂B12H12 MMMs show good dispersion of the IPs (from 2.5 to 10 wt %) in the polymer matrix. The gas permeability of PIM1/K₂B12H12 MMMs increases as the loading of IPs increases (up to 10 wt %) without sacrificing permselectivity. The sorption isotherm in PIM-1 and PIM1/K₂B12H12 MMMs demonstrate typical dual-mode sorption behaviors for the gases CO₂ and CH₄.
منابع مشابه
Functionalized carbon nanotubes mixed matrix membranes of polymers of intrinsic microporosity for gas separation
The present work reports on the gas transport behavior of mixed matrix membranes (MMM) which were prepared from multi-walled carbon nanotubes (MWCNTs) and dispersed within polymers of intrinsic microporosity (PIM-1) matrix. The MWCNTs were chemically functionalized with poly(ethylene glycol) (PEG) for a better dispersion in the polymer matrix. MMM-incorporating functionalized MWCNTs (f-MWCNTs) ...
متن کاملErratum to: Functionalized carbon nanotubes mixed matrix membranes of polymers of intrinsic microporosity for gas separation
Correction The authors regret to have overlooked an error in (Figure five) of the original version of this article [1]. The original, incorrect form (Figure 1), and the corrected form (Figure 2) are shown in this article. Figure 1 Synthesis of PIM-1, a-reagent and condition, K2CO3, DMAc and DEB at 150°C for 1 h (Incorrect form). Figure 2 Synthesis of PIM-1, a-reagent and condition, K2CO3, DMAc ...
متن کاملMembranes of Polymers of Intrinsic Microporosity (PIM-1) Modified by Poly(ethylene glycol)
Until now, the leading polymer of intrinsic microporosity PIM-1 has become quite famous for its high membrane permeability for many gases in gas separation, linked, however, to a rather moderate selectivity. The combination with the hydrophilic and low permeable poly(ethylene glycol) (PEG) and poly(ethylene oxides) (PEO) should on the one hand reduce permeability, while on the other hand enhanc...
متن کاملSimulated swelling during low-temperature N2 adsorption in polymers of intrinsic microporosity.
Polymers of intrinsic microporosity (PIMs) are a promising alternative in gas separation applications; however, their industrial applicability is greatly reduced by their susceptibility toward sorption-induced plasticization. In this study, the effects of swelling during nitrogen adsorption isotherms at 77 K for five PIMs (PIM-1, PIM-1c, PIM-SBF, PIM-SBF-Me, and sPIM-1) were examined through pr...
متن کاملMixed matrix membranes prepared from high impact polystyrene with dispersed TiO2 nanoparticles for gas separation
The current study presents synthesis and characterization of high impact polystyrene - TiO2 nanoparticles mixed matrix membranes for separation of carbon dioxide from nitrogen. The solution-casting method was used for preparation of membranes. The nano mixed matrix membranes were characterized using scanning electron microscopy to ensure the suitable dispersion of nano particles in high impact ...
متن کامل