Description

1,4-Benzenediol, Polymer With 1,1-Sulfonylbis4-Chlorobenzene And 4,4-Sulfonylbisphenol is a high-performance polysulfone copolymer, valued for its exceptional thermal stability, mechanical strength, and chemical resistance. This engineered polymer is critical for applications demanding durability under harsh environmental and operational conditions. It serves as a key material for advanced manufacturers in the aerospace, automotive, and specialty filtration industries seeking reliable polymeric solutions.

Application

• High-Temperature Membranes: Used in the production of ultrafiltration (UF) and nanofiltration (NF) membranes for aggressive chemical separations.
• Engineering Thermoplastics: A base resin for injection molding or extrusion of components requiring excellent dimensional stability and flame retardancy.
• Aerospace Composites: Employed as a matrix resin or additive in composite materials for interior and structural components.
• Automotive Under-the-Hood Parts: Suitable for connectors, sensor housings, and other components exposed to heat and automotive fluids.
• Electrical Insulation: Used in wire coatings, circuit board substrates, and other applications requiring good dielectric properties.
• Medical Device Housings: For equipment requiring repeated sterilization and high chemical purity.
• Adhesives and Coatings: As a high-performance modifier to enhance thermal and chemical resistance in formulated products.

Basic Information

Product Name	1,4-Benzenediol, Polymer With 1,1-Sulfonylbis4-Chlorobenzene And 4,4-Sulfonylbisphenol
CAS No.	79293-56-4
Molecular Formula	(C12H8Cl2O2S • C12H10O4S • C6H6O2)n
Molecular Weight	Polymer - Contact for details
Synonyms	Polysulfone copolymer; Poly(oxy-1,4-phenylenesulfonyl-1,4-phenyleneoxy-1,4-phenylenecarbonyl-1,4-phenylene); Poly(ether sulfone) copolymer; PESU copolymer; 4,4'-Sulfonylbis[phenol] polymer with 4,4'-sulfonylbis[chlorobenzene] and hydroquinone; Poly(arylene ether sulfone); Thermoplastic polysulfone resin; High-performance polysulfone.
EINECS	Contact for details

Quality Control

Our polysulfone copolymer is manufactured under a strict quality management system. Each batch is tested to ensure consistent molecular weight distribution, thermal properties (Tg), and intrinsic viscosity, which are critical for predictable processing and performance. Certificates of Analysis (COA) detailing these specifications are available upon request, supporting compliance with relevant industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. Ensure the storage area is free from excessive dust and moisture to maintain product integrity.

Specification

Item	Specification
Appearance	Off-white to pale yellow pellets or powder
Identification (IR)	Conforms to structure
Glass Transition Temperature (Tg)	> 180 °C
Intrinsic Viscosity	0.35 - 0.65 dL/g (varies by grade)
Volatile Content	< 0.5 %
Ash Content	< 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.