| http://www.w3.org/ns/prov#value | - Representative suitable polymers forming the porous membrane include polyolefins such as polyethylene, polypropylene, polymethylpentene, or the like; polystyrene or substituted polystyrenes; fluorinated polymers including poly(tetra fluorethylene), polyvinylidene fluoride or the like; poly sulfones such as polysulfone, polyethersulfone or the like; polyesters including polyethylene terephthalate,
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