Description

4,4'-Di(Glycidyloxy)Diphenyl Sulfone is a high-purity, difunctional epoxy resin monomer and a key chemical intermediate. This compound matters for its ability to impart high thermal stability, chemical resistance, and excellent mechanical properties to advanced polymer matrices. It is primarily needed by manufacturers in the aerospace, electronics, and high-performance composite industries for formulating specialized adhesives, coatings, and fiber-reinforced plastics.

Application

• As a critical cross-linking agent in high-temperature epoxy resin systems for aerospace composites.
• Formulation of specialized adhesives and sealants requiring superior chemical and thermal resistance.
• Production of advanced electronic encapsulants and printed circuit board laminates.
• Manufacturing of high-performance coatings for industrial and automotive applications.
• Key monomer in the synthesis of polyethersulfone (PES) and other high-performance engineering thermoplastics.
• Used in research and development of novel polymer materials with enhanced properties.

Basic Information

Item	Detail
Product Name	4,4'-Di(Glycidyloxy)Diphenyl Sulfone
CAS No.	3878-43-1
Molecular Formula	C18H18O6S
Molecular Weight	362.40 g/mol
Synonyms	Diglycidyl Ether of Dihydroxydiphenyl Sulfone; DGE-DHPS; 4,4'-Diglycidyloxydiphenyl Sulfone; 1,1'-[Sulfonylbis(4,1-phenyleneoxy)]bis[2,3-epoxypropane]; Bis(4-glycidyloxyphenyl) Sulfone; Epoxy Resin Monomer; DGEDPS; 4,4'-Bis(glycidyloxy)diphenyl sulfone
EINECS	223-398-0

Quality Control

Our 4,4'-Di(Glycidyloxy)Diphenyl Sulfone is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay, epoxide equivalent weight (EEW) determination, and impurity profiling, to ensure it meets precise customer and industry specifications. A comprehensive Certificate of Analysis (COA) documenting purity, physical properties, and test results is provided with every shipment.

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 heat, open flames, and incompatible materials such as strong acids, bases, and oxidizing agents. The product is moisture-sensitive; ensure containers are sealed after use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Epoxide Equivalent Weight (EEW)	180 - 190 g/eq
Melting Point	85 - 95 °C
Color (APHA)	≤ 100
Moisture (KF)	≤ 0.5%

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