53680-66-3

Upstream product

• 383-29-9 bis(p-fluorophenyl)sulfone 
• 60-24-2 2-hydroxyethanethiol 
• 80-07-9 4,4'-dichlorodiphenyl sulphone 

Downstream Products

• 104609-61-2 4,4'-bis(methacryloyloxyethylthio)diphenylsulfone 
• 345290-67-7 4,4'-bis(acryloyloxyethylthio)diphenylsulfone 
• 1048373-41-6 4,4'-bis(methacryloyloxyethylcarbamatoethylthio)phenylsulfone 
• 1048373-88-1 4,4'-di(2-chloroethylthio)diphenyl sulfone 

Relevant academic research and scientific papers

Modulation of Thermally Activated Delayed Fluorescence in Waterborne Polyurethanes via Charge-Transfer Effect

Here, we designed several waterborne polyurethanes (WPUs) with efficient thermally activated delayed fluorescence (TADF) via serving charge-transfer (CT) states as a mediate bridge between singlet and triplet states to boost reverse intersystem crossing (RISC). By tuning substituents of diphenyl sulfone (DS), we found that O,O′- and S,S′-substituted DS covalently incorporated in WPUs solely show typical fluorescence emission with lifetimes in the nanosecond range. Interestingly, TADF appears by replacing the substituent with the nitrogen atom, of which lifetimes are up to ≈10 microseconds and ≈1 millisecond in air and vacuum, respectively, even though the energy gap between singlet and triplet states (ΔEST) is still large for generating TADF. To explain this phenomenon, an energy level mode based on CT states and an 3(n-π*) receiver state was proposed. By the rational modulation of CT states, it is possible to tune the ΔEST to render TADF-based materials suitable for versatile applications.

NOVEL DIARYL SULFONE COMPOUND, AND MANUFACTURING METHOD FOR SAME

The present invention provides a diaryl sulfone compound represented by Formula (1): wherein R1 to R4 and R1′ to R4′ are the same or different, and each represents hydrogen, C1-4 alkyl, or halogen, and R5 represents C2-6 alkenyl, C1-4 alkyl, or aromatic heterocyclic group; a method for producing the diaryl sulfone compound represented by Formula (1) by reacting a 4,4′-dihaloarylsulfone compound with thiol salt compound having an alkylene group; and a method for producing the diaryl sulfone compound represented by Formula (1) by reacting a 4,4′-dihaloarylsulfone compound with a thiol salt compound having a hydroxyl group, and subjecting the resulting compound to reaction with a halogenating agent, followed by a dehydrohalogenation reaction.

HIGH REFRACTIVE INDEX MONOMERS, COMPOSITIONS AND USES THEREOF

The invention relates to novel sulfur-containing (meth)acrylic monomers and compositions thereof characterized by a high refractive index, for optical and industrial applications. The invention also relates to a method for preparing high refractive index polymeric materials and more specifically to a method for formation of ultraviolet cast optical lenses and compositions thereof comprising the sulfur-containing (meth)acrylic monomers.