4,4'-Diaminodiphenylsulfone(:https://www.bloomtechz.com/synthetic-chemical/api-researching-only/4-4-diaminodiphenylsulfone-cas-80-08-0.html), with the chemical formula C12H12N2O2S, consists of two benzene rings and one sulfone group. The sulfone group is connected to two benzene rings through sulfur atoms. This molecule has a rigid planar structure and therefore has a certain degree of spatial stability. It is a white crystalline solid that appears in powder form at room temperature. Its melting point is about 168-172 degree , and its boiling point is about 350 degree . Its density is approximately 1.42 g/cm ³, Good solubility, soluble in many organic solvents such as ethanol, chloroform, and dimethyl sulfoxide, but with low solubility in water. As an important monomer for synthesizing polymers, it can be used to prepare various high-performance polymer materials, such as polyamide, polyester, and polyimide. These polymers have been widely used in industry and have excellent mechanical properties, high temperature resistance, insulation, and self-lubrication properties. They are widely used in engineering plastics, fiber reinforced materials, coatings, and other fields.
4,4 '- Diaminodiphenylsulfone is an important organic compound with multiple uses.
1. Synthetic polyamide:
It can be used as one of the monomers to react with dicarboxylic acids to synthesize polyamide. Polyamide is a polymer material with excellent mechanical properties, wear resistance, high temperature resistance, and corrosion resistance. It is widely used in engineering plastics, fiber reinforced materials, wear-resistant materials, and other fields.
When synthesizing polyamide, 4,4 '- Diaminodiphenylsulfone is mixed with other dicarboxylic acids (such as adipic acid, sebacic acid, etc.) in a certain proportion, heated to a certain temperature, and the reaction generates polyamide. The molecular weight and performance of polymers can be adjusted by controlling reaction conditions and monomer ratio.
2. Synthetic polyester:
3. Synthetic polyimide:
It can be used as one of the monomers to react with binary acyl chloride to synthesize polyimide. Polyimide is a polymer material with excellent mechanical properties, high temperature resistance, insulation, and self-lubricating properties. It is widely used in fields such as engineering plastics, insulation materials, and lubricating materials.
When synthesizing polyimide, 4,4 '- Diaminodiphenylsulfone is mixed with other binary acyl chlorides (such as phthalic anhydride, para phthaloyl chloride, etc.) in a certain proportion, heated to a certain temperature, and the reaction generates polyimide. The molecular weight and performance of polymers can be adjusted by controlling reaction conditions and monomer ratio.
4. Preparation of printed circuit boards:

Printed circuit boards are key components in electronic devices used for connecting and transmitting electronic signals. 4,4 '- Diaminodiphenylsulfone can be used as one of the monomers to react with binary phenols to synthesize epoxy resin for preparing printed circuit boards.
When synthesizing epoxy resin, 4,4 '- Diaminodiphenylsulfone is mixed with other binary phenols (such as bisphenol A, bisphenol F, etc.) in a certain proportion, heated to a certain temperature, and reacts to generate epoxy resin. Epoxy resin has excellent electrical performance, bonding performance, high temperature resistance, and corrosion resistance, and is widely used in the manufacturing of printed circuit boards.
5. Preparation of copper clad plate:
Copper clad plate is a substrate used for manufacturing printed circuit boards, which is composed of epoxy resin and other additives. 4,4 '- Diaminodiphenylsulfone can be used as one of the monomers to react with binary phenols and other additives to synthesize epoxy resin for preparing copper clad laminates.
When synthesizing epoxy resin for copper clad panels, 4,4 '- Diaminodiphenylsulfone is mixed with other binary phenols (such as bisphenol A, bisphenol F, etc.) and additives (such as active diluents, toughening agents, etc.) in a certain proportion, heated to a certain temperature, and reacted to form epoxy resin. Epoxy resin can be used as an upper layer material for copper clad panels, improving their electrical properties, mechanical strength, and high temperature resistance.
6. Preparation of other insulation materials:
In addition to being used for preparing printed circuit boards and copper clad boards, 4,4 '- Diaminodiphenylsulfone can also react with other monomers to synthesize other insulation materials, such as polyimide, polyimide, polyester polyurethane, etc. These insulation materials have excellent electrical performance, high temperature resistance, corrosion resistance, and mechanical strength, and are widely used in the manufacturing of electronic equipment.
For example, 4,4 '- Diaminodiphenylsulfone can react with dianhydride to synthesize polyimide. Polyimide is a polymer material with excellent mechanical properties, electrical properties, high temperature resistance, and self-lubrication. It is widely used in the fields of insulation materials, lubrication materials, and packaging materials for electronic equipment.

