Effect of Casting Solvent on Morphology and Physical Properties of Partially Sulfonated Polystyrene‐block‐poly(ethylene‐ran‐butylene)‐block‐polystyrene Copolymers |
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| Authors: | Jinhwan Kim Bokyung Kim Bumsuk Jung Yong Soo Kang Heung Yong Ha In‐Hwan Oh Kyo Jin Ihn |
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| Abstract: | The effect of casting solvent on the morphology of sulfonated polystyrene‐block‐poly(ethylene‐ran‐butylene)‐block‐polystyrene (SSEBS) was investigated using transmission electron microscopy and small‐angle X‐ray scattering. Proton conductivities and methanol permeabilities were measured and the related impact on morphological changes is discussed. SSEBS is transformed from a well‐ordered lamellar to a disordered structure as the concentration of MeOH in MeOH/THF mixtures increases. |
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| Keywords: | block copolymers fuel cell membranes methanol permeability morphology proton conductivity |
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