A First Course in Ion Permeable MembranesElectrochemical Consultancy, 1997 - 255 pagine |
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Pagina 19
... Typically , the degree of substitution is high . For example , the sulfonation procedures lead to substituents in ... typical molar ratio of styrene : divinylbenzene being 6 - 8 : 1 . The crosslinks make the molecular structure more ...
... Typically , the degree of substitution is high . For example , the sulfonation procedures lead to substituents in ... typical molar ratio of styrene : divinylbenzene being 6 - 8 : 1 . The crosslinks make the molecular structure more ...
Pagina 54
... typical paste compositions used in the manufacture of Neosepta membranes [ 9 ] . Paste I Paste II poly ( vinylchloride ) 25.5 31.9 styrene 58.6 7.0 divinylbenzene 3.8 2.3 4 - ethylbenzene 3.8 2.3 2 - methyl - 5 - vinylpyridine 46.0 ...
... typical paste compositions used in the manufacture of Neosepta membranes [ 9 ] . Paste I Paste II poly ( vinylchloride ) 25.5 31.9 styrene 58.6 7.0 divinylbenzene 3.8 2.3 4 - ethylbenzene 3.8 2.3 2 - methyl - 5 - vinylpyridine 46.0 ...
Pagina 121
... typical commercial membranes are reported in table 3.12 . Not surprisingly , the area resistances for commercial membranes fall within a quite small range . In electrolysis cells , the current density is typically 500-5000 A m2 . Hence ...
... typical commercial membranes are reported in table 3.12 . Not surprisingly , the area resistances for commercial membranes fall within a quite small range . In electrolysis cells , the current density is typically 500-5000 A m2 . Hence ...
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A First Course in Ion Permeable Membranes Thomas A. Davis,J. David Genders,Derek Pletcher Visualizzazione estratti - 1997 |
Parole e frasi comuni
amine anion anion and cation anode anolyte applications aqueous domains aqueous solution back migration bipolar membrane carboxylate polymer cathode catholyte cation exchange membrane cation permeable membrane cell voltage charge Chem chemical chemistry chlor-alkali chlor-alkali industry chloride co-ions commercial membranes concentration conductivity counter ions crosslinking current density current efficiency depleting determined diffusion coefficient dilute divinylbenzene electrical Electrochem electrodialysis stack electrolyte solution Electrosynthesis equation equivalent weight example Figure fixed ionic groups fluorocarbon flux gradient H.L. Yeager H₂ H₂O Hence hydration increase interface ion exchange ion exchange capacity ion permeable membranes Ionomer layer manufacture membrane pairs membrane polymer Membrane Sci membrane surface metal mole molecules monomers NaCl Nafion NaOH Neosepta oxidation perfluorinated membranes perfluorinated polymers perfluorinated sulfonate pretreatment properties proton resistance salt splitting sodium hydroxide sodium sulfate species stability stream structure styrene/divinylbenzene copolymers sulfonate sulfonate polymer sulfuric acid temperature transport number water content