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50th Anniversary Perspective: Polymers and Mixed Matrix Membranes for Gas and Vapor Separation: A Review and Prospective Opportunities
Membrane gas separation is a mature and expanding technology. However, the availability of better membrane materials would promote faster growth. In this Perspective we analyze the state of the artExpand
Thermodynamics of water sorption in poly(ɛ-caprolactone): A comparative analysis of lattice fluid models including hydrogen bond contributions
Abstract Thermodynamics of water sorption in poly(ɛ-caprolactone) (PCL) has been interpreted by using three models based on compressible lattice fluid theories, addressing the issue of self- andExpand
Partitioning of mobile ions between ion exchange polymers and aqueous salt solutions: importance of counter-ion condensation.
TLDR
The resulting model provides remarkably good agreement with experimental values of membrane mobile salt concentration, and was demonstrated using literature data for ion sorption of various electrolytes in charged polymers, including HCl sorption in Nafion. Expand
Gas and Vapor Transport in Mixed Matrix Membranes Based on Amorphous Teflon AF1600 and AF2400 and Fumed Silica
The enhancement of gas and vapor transport rates induced by the addition of fumed silica nanoparticles to fluorinated glassy polymers is interpreted and quantitatively modeled considering theExpand
Diffusion in polymers as investigated by two-dimensional correlation spectroscopy: The H2O/PCL system
Abstract Time-resolved FTIR spectra collected in situ during a sorption-desorption cycle constituted the experimental basis for a molecular level characterization of the H2O/PCL system. The data wereExpand
Influence of temperature on gas solubility in thermally rearranged (TR) polymers
Abstract Thermally rearranged (TR) polymers have been the subject of many fundamental studies, but the effect of TR conversion on temperature-dependent transport properties is largely unexplored.Expand
Gas Sorption and Diffusion in Amorphous and Semicrystalline Nanoporous Poly(2,6-dimethyl-1,4-phenylene)oxide
In this contribution is presented an analysis of mass transport properties of low molecular weight compounds in amorphous PPO and in two semicrystalline PPOs obtained by treating with benzene andExpand
Time-resolved Fourier transform infrared spectroscopy, gravimetry, and thermodynamic modeling for a molecular level description of water sorption in poly(ε-caprolactone).
Sorption of water in poly(ε-caprolactone) (PCL), with specific focus on the hydrogen-bonding interactions, has been analyzed by combining ab initio calculations, macroscopic thermodynamics modeling,Expand
Dispersing hydrophilic nanoparticles in hydrophobic polymers: HDPE/ZnO nanocomposites by a novel template-based approach
The efficiency of a novel template-based approach for the dispersion of hydrophilic nanoparticles within hydrophobic polymer matrices is investigated. The procedure envisages the permeation of a wellExpand
Water Sorption Thermodynamics in Glassy and Rubbery Polymers: Modeling the Interactional Issues Emerging from FTIR Spectroscopy
Water sorption thermodynamics has been effectively investigated in rubbery and glassy polymers using, respectively, an equilibrium lattice fluid model, originally introduced by Panayiotou et al.Expand
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