聚电解质。用于电记录和电子照相基底的导电和防静电树脂。 application： Poly(styrene sulfonic acid) is used in water softening and to remove hard ions like calcium and magnesium. In the medical field, it is used as potassium binders in acute and chronic kidney disease. Its sodium salt is used as a superplastifier in cement, as a dye improving agent for cotton, as proton exchange membranes in fuel cell applications. It acts as a solid acid catalyst in organic synthesis. It is an antistatic resin used for electrographic and electrophotographic substrates.