4-Benzoylphenyl Methacrylate-used as a photoinitiator or functional monomer

4-Benzoylphenyl Methacrylate (CAS No.: 56467-43-7, English Name: 4-Benzoylphenyl Methacrylate) is a compound containing a photosensitive group (benzophenone) and a polymerizable double bond (methacryloyloxy). Therefore, its main applications are concentrated in the field of photocurable materials, used as a photoinitiator or functional monomer.

Main Application Fields

UV Photocurable Coatings and Inks: As a Type II photoinitiator, 4-Benzoylphenyl Methacrylate can generate free radicals under ultraviolet irradiation to initiate resin polymerization and curing. It is widely used in varnishes, plastic coatings, wood coatings, lithographic inks, screen printing inks and flexographic inks to achieve a fast and environmentally friendly curing process.

UV-Curable Adhesives: In the adhesive industry, it is used to formulate UV-curable glues, which are suitable for electronic, optical and precision manufacturing fields, providing fast positioning and high-strength bonding.

Photoresists and Electronic Chemicals: In the microelectronics industry, it can be used as a component of photoresists for the patterning process of manufacturing printed circuit boards (PCBs) and semiconductor devices.

Synthesis of Functional Polymer Materials: The methacryloyloxy group in its molecular structure can participate in free radical polymerization reactions, so it can be used as a comonomer to be introduced into the main chain or side chain of polymers, endowing the materials with photoresponsiveness, crosslinking ability or specific surface properties.

Cosmetics and Personal Care Products: Due to the UV-absorbing property of the benzophenone group in its structure, this compound or its derivatives can also be used as UV absorbers, added to products such as sunscreen to protect the skin from UV damage.

Difference from "4-Methylbenzophenone"

Please note that 4-Benzoylphenyl Methacrylate (C17H14O3) and "4-Methylbenzophenone" (CAS: 134-84-9, C14H12O) are two completely different compounds. The latter is a simple ketone compound, mainly used as a UV absorber and pharmaceutical intermediate, but does not contain polymerizable double bonds, and its application scope is essentially different from the former. There are cases of confusion between the two in public information, so special attention should be paid to distinguishing them.

Photoinitiator Migration Issue

Studies have pointed out that some small-molecule photoinitiators (including 4-Methylbenzophenone) may migrate to packaging materials after UV curing, posing potential safety risks, so they are subject to regulatory restrictions in applications such as food packaging. As a reactive photoinitiator, 4-Benzoylphenyl Methacrylate has a relatively low migration risk and is a more preferred choice.

4-Benzoylphenyl Methacrylate — An Excellent Photoinitiator & Functional Monomer

Widely Used in Photocurable Materials, Photoresists and Electronic Chemicals