Introduction: 9,10-Dibutoxyanthracene is an organic compound derived from anthracene, characterized by the substitution of two butoxy groups at 9 and 10 positions of the backbone. This imparts unique electronic properties to the molecule, making it highly effective in photochemical applications. This compound, often abbreviated as DBA, has attracted significant attention in photochemistry and materials science due to its unique light absorption properties and its role as an efficient photosensitizer in cationic photopolymerization systems. It is also known under various trade names including ECure DBA, ANTHRACURE™ UVS-1331, and UVS-1550. And 9,10-Dibutoxyanthracene is soluble in various organic solvents including dimethyl sulfoxide (DMSO), benzene, and toluene.
Light Absorption and Photophysical Properties: 9,10-Dibutoxyanthracene exhibits strong absorption in the ultraviolet A (UVA) region at wavelengths of 360–400 nm. This distinctive absorption profile, extending beyond 400 nm, sets it apart from many conventional photosensitizers that are limited to shorter wavelengths. The ability to harvest long-wavelength UV light makes it particularly well-suited for modern photopolymerization applications, especially those employing UV LED sources.The compound functions as an electron transfer sensitizer. Upon absorption of light,it reaches excited state and readily transfers electron to suitable acceptor molecule—typically photoinitiator such as an onium salt—thereby initiating polymerization. This energy transfer enables initiation of cationic polymerization under mild UV exposure conditions.
Applications: 9,10-Dibutoxyanthracene is a versatile anthracene derivative with significant importance in photochemical applications. --Photosensitizer for UV Cationic Polymerization The primary and most significant application of 9,10-dibutoxyanthracene is as a photosensitizer for UV cationic polymerization. It is widely used in UV-curable formulations including UV inks, coatings, adhesives, and 3D printing systems. In cationic photopolymerization systems, DBA sensitizes onium salts (such as sulfonium or iodonium salts) in the 365–405 nm wavelength range, making it particularly compatible with UV LED curing equipment. Typical usage levels are approximately 0.1% by weight of total formulation. The use of DBA enables the polymerization to proceed under longer-wavelength UV radiation, improving the depth of cure, surface properties, and adhesion characteristics of the final cured product. --Fluorescent Dyes and Luminescent Materials 9,10-Dibutoxyanthracene serves as a precursor for fluorescent dyes and luminescent materials. Its conjugated structure allows for significant light absorption and fluorescence emission, making it suitable for applications requiring optical brightness or luminescence functionality. --Organic Electronics and Optoelectronics The compound is being explored for use in organic light-emitting diodes (OLEDs) and other electronic devices due to its charge transport and luminescent properties. It also finds application in the development of organic semiconductors and liquid crystal displays. --Additional Research Applications Also used as a building block in organic synthesis, a probe for studying molecular electronic devices, and in solar cells. Its role in photodegradation studies has also been of scientific interest, particularly regarding endoperoxide intermediates upon exposure to light and oxygen. Its strong absorption in the UVA region and efficient energy transfer capabilities make it an effective photosensitizer for UV cationic polymerization, particularly in UV LED curing systems for inks, coatings, adhesives, and 3D printing materials.
Handling and Storage: Storage: Store in a cool, dark place at room temperature (recommended <15 °C); Light Sensitivity: The compound is light-sensitive and should be protected from prolonged exposure to light. General Precautions: Avoid contact with skin and eyes. Use only in well-ventilated areas. If inhaled or ingested, seek immediate medical attention Environmental Precautions: As the compound may cause long-lasting harmful effects to aquatic life, release to the environment should be avoided. Product manager: Joy Wu Contact/Email address: Joy@coreychem.com
