Poly(Phenylene Sulfone) Chemical Structure | High-Performance Polymer #1442459 (License: Personal Use)

This schematic depicts the repeating unit of poly(phenylene sulfone) (PPSU), where two para-substituted benzene rings are bridged by a sulfone (-SO₂-) group, forming a rigid, linear polymer chain. The subscript 'b' denotes the degree of polymerization, and the terminal oxygen indicates a potential end-group from oxidative polymerization or hydrolysis. Its high glass transition temperature (~220°C) and excellent mechanical stability stem from this robust aromatic-sulfone architecture.

Used in academic chemistry resources, polymer science textbooks, material datasheets, and technical documentation for high-performance plastics; targets engineers, researchers, and students seeking structural insight into PPSU for applications in medical devices, automotive, and semiconductor manufacturing.