Collection: Photopolymerization Initiators

Photopolymerization Initiators — a collection of photoinitiator compounds that absorb light energy, mainly in the ultraviolet to visible range, to form reactive free radical or cationic species, including acetophenone derivatives, aromatic iodonium salts, and fluorinated titanocene complexes.

Photopolymerization Initiators play an important role in UV ink curing, optical coatings, photoresists for lithography, and 3D printing based on liquid resins, where light exposure triggers rapid polymer chain formation at room temperature. Researchers in photoresponsive materials and additive manufacturing technology developers use variations in iodonium structures and acetophenone derivatives to tune sensitivity to specific wavelengths.

Example products in this collection: TCI H0193 99-93-4 4'-Hydroxyacetophenone, TCI B5598 60565-88-0 Bis(4-methylphenyl)iodonium Hexafluorophosphate, TCI A0104 121-71-1 3'-Hydroxyacetophenone, TCI B5661 62051-09-6 Bis(4-tert-butylphenyl)iodonium Tetrafluoroborate, TCI A0502 84-65-1 Anthraquinone, TCI B6071 194999-85-4 Bis(4-tert-butylphenyl)iodonium Nonafluoro-1-butanesulfonate, TCI A0508 153277-35-1 Sodium Anthraquinone-2-sulfonate Monohydrate, TCI B6168 125051-32-3 Bis[2,6-difluoro-3-(1H-pyrrol-1-yl)phenyl]titanocene.

Selecting a photoinitiator requires considering the absorption wavelength matched to the light source, solubility in the resin system, and the type of reactive mechanism generated, radical or cationic. All products are genuine Tokyo Chemical Industry (TCI) Japan products, with purity, packaging, and storage conditions listed on each item's page.

Other categories at the same level under Polymerization Initiators, often used together in a single laboratory workflow:

• Thermal Polymerization Initiators
• Controlled Radical Polymerization Reagents
• Polymerization Catalysts
• Organocatalyzed Living Radical Polymerization Reagents

Back to Polymerization Initiators. For large-volume procurement, special packaging, or specific grades, contact the AMI Scientific team — official TCI Japan distributor in Indonesia — for availability checks and lead times directly from Japan.