Results 211 to 220 of about 26,556 (257)
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High Performance Polymers, 2012
Proton exchange membranes were prepared by blending sulfonated poly(ether sulfone ether ketone ketone) (SPESEKK) with sulfonated poly(ether sulfone) (SPES). The morphology, tensile strength, proton conductivity and methanol permeability of the blend membranes were investigated.
Rong Zeng +3 more
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Proton exchange membranes were prepared by blending sulfonated poly(ether sulfone ether ketone ketone) (SPESEKK) with sulfonated poly(ether sulfone) (SPES). The morphology, tensile strength, proton conductivity and methanol permeability of the blend membranes were investigated.
Rong Zeng +3 more
openaire +1 more source
European Polymer Journal, 2010
Abstract Polymer blending is used to modify or improve the dimensional and thermal stability of any two different polymers or copolymers. In this study, both sulfonated polybenzimidazole homopolymer (MS-p-PBI 100) and sulfonated poly(aryl ether benzimidazole) copolymers (MS-p-PBI 50, 60, 70, 80, 90) were successfully synthesized from commercially ...
Krishnan, NN Krishnan, N. Nambi +10 more
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Abstract Polymer blending is used to modify or improve the dimensional and thermal stability of any two different polymers or copolymers. In this study, both sulfonated polybenzimidazole homopolymer (MS-p-PBI 100) and sulfonated poly(aryl ether benzimidazole) copolymers (MS-p-PBI 50, 60, 70, 80, 90) were successfully synthesized from commercially ...
Krishnan, NN Krishnan, N. Nambi +10 more
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Study on phenol sulfonation by concentrated sulfuric acid: Kinetics and process optimization
Chemical Engineering and Science, 2019Sulfonation process usually exhibit high reaction rate and low yield and selectivity of product in common reactors for its insufficient micromixing. This work employed a rotating packed bed (RPB) to intensify the micromixing of the phenol sulfonation ...
Xiaoke Ma +7 more
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Catalysis Today, 2019
The plasma sulfonation process has shown promising results on modifying carbon materials to solid acid catalysts for cellulose conversion under dilute acid solution.
O. Li +4 more
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The plasma sulfonation process has shown promising results on modifying carbon materials to solid acid catalysts for cellulose conversion under dilute acid solution.
O. Li +4 more
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Journal of Applied Polymer Science, 2000
The sulfonation of polymers and the pervaporation behavior of asymmetric polymeric membranes are described in this study. We confirmed that the sulfonic acid group was successively introduced into the polymer chain by FTIR and 1H-NMR characterization.
I. S. Byun, I. C. Kim, J. W. Seo
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The sulfonation of polymers and the pervaporation behavior of asymmetric polymeric membranes are described in this study. We confirmed that the sulfonic acid group was successively introduced into the polymer chain by FTIR and 1H-NMR characterization.
I. S. Byun, I. C. Kim, J. W. Seo
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Synthesis of carbohydrate sulfonates and sulfonate esters
The Journal of Organic Chemistry, 1990La reaction d'esters α-lithio sulfonates avec des hydrures de carbohydrates primaires est une voie simple de synthese de sulfonates-analogues de phosphates hydrocarbones importants comme le glucose 6-phosphate, le ribose 5-phosphate et l'uridine 5-phosphate.
Branislav Musicki, Theodore S. Widlanski
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