Product Description of Polysulfone CAS#25135-51-7
Polysulfone, commonly referred to as bisphenol A polysulfone, is a transparent linear thermoplastic engineering plastic with a Transparent amber color. It has a relative density of 1.24, and possesses excellent dimensional stability, exceptional resistance to boiling water and high-temperature steam, favorable mechanical properties, and excellent dielectric performance.
Additionally, polysulfone offers good chemical resistance, flame retardancy, and non-toxicity. Nevertheless, its weather resistance and UV resistance are relatively poor. In general, polysulfone refers to polymers containing sulfone groups (—SO₂—). As a type of engineering plastic, it specifically features structural units in which aromatic rings are linked via sulfone linkages.
Polysulfone Chemical Properties
| English Name | POLYSULFONE |
| English Synonyms | PSU;Poly(oxy-1,4-phenylenesulfonyl-1,4-phenyleneoxy-1,4-phenylene(1-methylethylidene)-1,4-phenylene); Poly(phenylenesulfone);polysulfonep1700;PPSF;PPSU;PSF;Polysulfone resin, pellets |
| CAS Number | 25135-51-7 |
| Molecular Formula | C81H66012S3X2 |
| Molecular Weight | 1327.58 |
| Melting point | 185°C |
| Tg | 190 |
| Density | 1.24 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.633 |
| Storage conditions | -20°C |
| Form | Granular |
| Color | Transparent |
| Thermal conductivity | 0.259 W/(m-K) |
| InChI | 1S/C15H1602.C12H1004S/c1-15(2,11-3-7-13(16)8-4-11)12-5-9-14(17)10-6-12;13-9-1-5-11(6-2-9)17(15,1 6)12-7-3-10(14)4-8-12/h3-10,16-17H,1-2H3;1-8,13-14H |
| InChIKey | ZUZZUJNBGCVPLQ-UHFFFAOYSA-N |
| Smiles | CC(C)(c1ccc(O)cc1)c2ccc(O)cc2.Oc3ccc(cc3)S(=O)(=O)c4ccc(O)cc4 |
Product Application of Polysulfone CAS#25135-51-7
Polysulfone (PSU) is a high-performance amorphous engineering thermoplastic with outstanding heat resistance, hydrolysis stability and mechanical strength. It is widely used in food contact and medical industries, suitable for reusable surgical instruments, medical device housings, membrane materials for water purification and filtration systems.
In electronics and electrical fields, PSU serves as insulation components, circuit board holders and connector parts thanks to its good dielectric properties. It also finds applications in aerospace, automotive and food processing equipment, for manufacturing heat-resistant parts that can withstand repeated steam sterilization and harsh chemical environments.
