Membrane materials
Synthesis and characterization of sulfonated poly(phthalazinone ether ketone) for proton exchange membrane materials
... exchange membrane materials for use in fuel cells, sulfonated poly(phthalazinone ether ketone)s (SPPEKs) were prepared by the modification of poly(phthalazinone ether ...temperature. Membrane films ...
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Sulfonated copoly(phthalazinone ether ketone nitrile)s as proton exchange membrane materials
... Sulfonated copoly(phthalazinone ether ketone nitrile)s as proton exchange membrane materials 夽 Yan Gao a , b , Gilles P. Robertson a , Michael D. Guiver a , ∗ , Guoqing Wang b , Xigao Jian b , Serguei D. ...
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Modified polysulfones. VI. Preparation of polymer membrane materials containing benzimine and benzylamine groups as precursors for molecularly imprinted sensor devices
... polymeric membrane materials for af- finity and molecular ...film-forming membrane material; therefore, membranes with pendant benzylamine groups provide binding sites for optically active imprint ...
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Advances in high permeability polymeric membrane materials for CO2 separations
... microporous materials, such as zeolites and activated carbon, they generally have very good solubility and are thus readily ...of materials, prepared by polycondensation reaction of commercial monomers ...
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Comparative effect of phthalazinone units in sulfonated poly(arylene ether ether ketone ketone) copolymers as proton exchange membrane materials
... SPAEEKK-D membrane incorporating the phthalazinone monomer DHPZ showed relatively lower water uptake and methanol permeability compared with earlier SPAEEKK-B and SPAEEKK-H membranes incorporating biphenol and ...
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Preparation and characterization of polysulfones containing both hexafluoroisopropylidene and trimethylsilyl groups as gas separation membrane materials
... Received November 19, 2003; Revised Manuscript Received December 16, 2003 ABSTRACT: Trimethylsilylated derivatives of hexafluoropolysulfone (6FPSf) and tetramethylhexafluoro- polysulfone (TM6FPSf) were prepared by ...
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Synthesis and characterization of poly(aryl ether ketone) copolymers containing (hexafluoroisopropylidene)-diphenol moiety as proton exchange membrane materials
... Abstract Sulfonated poly(aryl ether ketone)s (SPAEK) copolymers were synthesized by aromatic nucleophilic polycondensation from 4,4 0 - (hexafluoroisopropylidene)-diphenol, 1,3-bis(4-fluorobenzoyl)benzene and ...
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Sulfonated poly(aryl ether ether ketone ketone)s containing fluorinated moieties as proton exchange membrane materials
... Aromatic polymers with sulfonic acid groups are regarded as promising materials for PEMs because of their high thermal and chemical sta- bility. Sulfonated derivatives of poly(ether ether ketone) (SPEEK), 8–10 ...
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Synthesis of poly(arylene ether ether ketone ketone) copolymers containing pendant sulfonic acid groups bonded to naphthalene as proton exchange membrane materials
... the ratio of diol monomers (SC:1-SC) can be con- veniently derived. SPAEEKKs with different SC values were obtained by adjusting the feed ratio of sulfonated monomer diol DHNS to unsulfonated monomer diols 4,4 ′ ...
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Synthesis of highly fluorinated poly(arylene ether)s copolymers for proton exchange membrane materials
... dielectric materials may be considered to be good candidate materials for the PEM polymer backbone, due to their excellent thermal stability, good mechanical proper- ties, high hydrophobicity and economical ...
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Thermostable natural protein polymers from Geobacillus thermodenificans DSM465 as membrane materials for vapor permeation
... / La version de cette publication peut être l’une des suivantes : la version prépublication de l’auteur, la version acceptée du manuscrit ou la version de l’éditeur. Access and use of [r] ...
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Direct copolymerization of sulfonated poly(phthalazinone arylene ether)s for proton-exchange-membrane materials
... / La version de cette publication peut être l’une des suivantes : la version prépublication de l’auteur, la version acceptée du manuscrit ou la version de l’éditeur. For the publisher’[r] ...
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Modified polysulfones. III. Synthesis and characterization of polysulfone aldehydes for reactive membrane materials
... been used: polymerization of a functional mono- mer, end-capping a polymer, oxidative bond- cleavage, and polymer postmodification. Wolpert 3 synthesized an aldehyde copolymer (PAN-PAL) from acrolein and acrylonitrile ...
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Fundamentals of membrane processes
... viable membrane-based processes, one needs to understand the factors responsible for membrane performance and the means to determine the characteristics of the membranes and ...as membrane ...
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Flashings for membrane roofing
... roofing materials are the main factors requiring ...contiguous materials from water wash, and expansion and contraction characteristics are some of the factors governing the choice of ...
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Polymers of intrinsic microporosity containing trifluoromethyl and phenylsulfone groups as materials for membrane gas separation
... Polymer membrane gas separation is a dynamic and rapidly growing field of separation technology 1,2 because it can offer a number of advantages, such as low energy use and capital ...of membrane ...
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Combining air recharging and membrane superhydrophobicity for fouling prevention in membrane distillation
... technology membrane distillation (MD), superhydrophobicity of the membrane has been shown to dramatically decrease fouling in adverse conditions, but the mechanism for this is not well ...the ...
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Architecture and materials selection in multi-materials design
... 2.3 Homogenisation models After the presentation of the most representative patterns, the corresponding homogenisation models have to be identified. The analytical homogenisation model efficiency is at the crossroads ...
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Membrane performance with plug screw feeder pressate: operating conditions and membrane properties
... The solute size distribution also The effect of cross-flow velocity and trans- required that the membrane pore size or MWCO membrane pressure on membrane flux have be[r] ...
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Current-Induced Membrane Discharge
... Figure 4(a) shows that slightly above the limiting current (J tot =J lim ¼ 1:01) the M 1 model already predicts a very significant extended space charge layer (the ‘‘shoulder’’ maximum in ions = ions;0 ¼ ð D L SDL = ...
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