Polysulfone is a polymer containing sulfone linkages in its main chain. The local linkage has a sulfur bonded to two oxygens and to carbon-containing groups, schematically . In common aromatic polysulfones, the polymer backbone also contains aromatic rings and ether linkages. The local sulfone motif is one part of the full repeat unit.
A concrete materials example is the PSU family of amorphous thermoplastics identified in BASF's technical information. The same source separately identifies polyethersulfone and polyphenylsulfone, showing why related sulfur-containing polymer names should not be treated as interchangeable names for one repeat structure.[ref]
Ultrason E, S, P product information by BASF. Product range: distinct PSU, PESU and PPSU families; brochure printed p.10, corresponding structural-family labels.
The distinction is useful when relating chemical structure to measured material behavior. Finding a sulfone group does not, by itself, specify the spacing of aromatic rings, the other backbone links, the chain length or added components. Two samples can share that local group while differing in their glass transition and mechanical response. A complete material description therefore needs more than the name of one functional group.
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Polysulfone is a type of high-performance thermoplastic polymer known for its excellent mechanical, thermal, and chemical resistance properties. It is part of the family of sulfone polymers and is commonly used in various industrial applications due to its robustness and stability at elevated temperatures. ### Characteristics of Polysulfone: 1. **Thermal Stability**: Polysulfone can withstand high temperatures, typically maintaining its properties up to around 180-200°C (356-392°F).