For chemists and product developers, understanding the specific function and benefits of chemical components is paramount to innovation. 2,2-Dimethoxy-2-Phenylacetophenone, identified by CAS number 24650-42-8, is a pivotal ingredient in the realm of UV-curable materials. This article delves into its technical attributes and applications, offering insights for R&D scientists and formulation chemists looking to optimize their products.

Technical Profile of CAS 24650-42-8

2,2-Dimethoxy-2-Phenylacetophenone, often referred to as BDK or DMPA, is a Type I photoinitiator. Its molecular formula is C16H16O3, with a molecular weight of approximately 256.3 g/mol. It typically presents as a white to pale yellow crystalline powder with a melting point range of 67-70°C. Its chemical structure allows it to efficiently absorb UV light and undergo alpha-cleavage, generating reactive free radicals. These radicals then initiate the polymerization process in unsaturated monomers and oligomers, leading to the rapid transformation of liquid formulations into solid, cross-linked polymers.

Mechanism of Action in UV Curing

The primary function of 2,2-Dimethoxy-2-Phenylacetophenone in UV curing is to initiate photo-polymerization. Upon absorption of UV radiation, the molecule cleaves into two radical fragments: a benzoyl radical and a dimethoxybenzyl radical. Both of these radicals are highly reactive and can initiate the chain growth of monomers, such as acrylates. This process is crucial for applications requiring fast curing times and precise control over the polymerization process.

Key Applications and Performance Benefits

The effectiveness of CAS 24650-42-8 extends to a wide array of industrial applications:

  • Coatings: It serves as a vital component in UV-curable coatings for wood, metal, plastic, and paper, providing excellent scratch resistance, gloss retention, and chemical stability.
  • Inks: Its rapid curing properties are highly valued in UV printing inks for various substrates, ensuring high throughput and vibrant, durable prints.
  • Adhesives: Used in UV-curable adhesives for applications where rapid bonding, optical clarity, and resistance to environmental factors are important.
  • Specialty Applications: It can also be found in photoresist formulations for electronics and other light-sensitive materials.

The advantage of using a reliable photoinitiator for acrylate polymerization like 2,2-Dimethoxy-2-Phenylacetophenone lies in its ability to deliver consistent and efficient polymerization. For those looking to purchase alpha,alpha-Dimethoxy-alpha-phenylacetophenone, understanding its role in achieving desired material properties is key. Our company, a prominent manufacturer and supplier in China, provides this essential chemical with high purity and competitive price, ensuring your formulations meet the highest standards. If you are researching how to enhance your UV curable products, integrating this photoinitiator is a logical step.

We invite R&D professionals and formulators to explore the possibilities with our premium 2,2-Dimethoxy-2-Phenylacetophenone. Contact us for detailed technical specifications and to request a sample, ensuring you have the best materials to drive your product innovation.