Application of 4-Acryloyloxybenzophenone

4-Acryloyloxybenzophenone (CAS: 22535-49-5) is mainly used as a photoinitiator in adhesives, rather than a plasticizer or ordinary additive. Its core function is to utilize the acryloyl and benzophenone structures in the molecule to generate active free radicals under ultraviolet (UV) or visible light irradiation, thereby initiating the rapid polymerization and crosslinking reaction of unsaturated monomers (such as acrylates) in the adhesive and achieving rapid curing of the adhesive.

Main Functions and Advantages

High-Efficiency Photoinitiation: The benzophenone group in its molecular structure is a classic photosensitive group, which can effectively absorb ultraviolet light and initiate polymerization, making it suitable for UV-curable adhesive systems.

Low Migration and High Stability: This compound has good thermal stability and photostability, and is not easy to migrate or volatilize after curing, which helps to improve the long-term performance and durability of the adhesive.

Applicable to Various Substrates: It is often used in occasions requiring high bonding strength, curing speed and transparency, such as optical adhesives, electronic adhesives, wood coatings, metal/glass bonding, etc.

Relevant Application Support

Public data shows that 4-Acryloyloxybenzophenone is clearly listed as one of the photoinitiator components in adhesives. For example, in an invention patent on "degradable adhesives dedicated to glass/metal bonding", 4-Acryloyloxybenzophenone is listed as one of the optional photoinitiators, which is used in synergy with other photoinitiators such as HCPK and TPO to achieve efficient curing. In addition, many suppliers mark its use as "adhesives" and "polymer blends" in their product descriptions, further confirming its application in adhesive systems.

Supplementary Information

Chemical Names: 2-Propenoic acid, 4-benzoylphenyl ester; 4-Benzoylphenyl acrylate

CAS No.: 22535-49-5

Molecular Formula: C₁₆H₁₂O₃

Physical State: White crystalline powder

Storage Conditions: Store in a cool, dry and dark place

In summary, 4-Acryloyloxybenzophenone is an excellent photoinitiator, which is widely used in UV-curable adhesives to achieve a fast, efficient and low-volatility curing process.