Review Article

The Blood Compatibilities of Blood Purification Membranes and Other Materials Developed in Japan

Figure 3

The structural formulas of PES and PS. PS membrane is synthesized by polymerizing dichlorodiphenyl sulfone with bisphenol A, whereas PES is done by polymerizing dichlorodiphenyl sulfone with dihydroxydiphenyl sulfone. Therefore, PES has similar property to PS, but risk of bisphenol A elution from membrane material is lower than that of PS.
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