What is 2-Benzyl-2-(dimethylamino)-4'-morpholinobutyrophenone?

2-Benzyl-2-(dimethylamino)-4'-morpholinobutyrophenone is a specialized chemical compound commonly used as a photoinitiator in the curing of resins, inks, coatings, and adhesives. Photoinitiators are substances that absorb light and initiate a chemical reaction, typically the polymerization of a monomer into a polymer, when exposed to UV light or visible light.

Chemical Structure and Properties

• Chemical Formula: C21H26N2O2

• Molecular Weight: Approximately 338.45 g/mol

• Structure:

• The molecule consists of a benzyl group attached to a central carbon atom that is also bonded to a dimethylamino group and a butyrophenone chain.

• The 4'-morpholino group is attached to the butyrophenone chain, making the structure highly functionalized.

• Appearance: Typically appears as a yellow crystalline powder or solid.

• Solubility: Soluble in various organic solvents such as acetone, methanol, and ethanol; insoluble in water.

• Stability: Stable under normal conditions but should be kept away from strong oxidizing agents, heat, and direct sunlight.

Applications of 2-Benzyl-2-(dimethylamino)-4'-morpholinobutyrophenone

1. Photoinitiator in UV-Curable Systems

• Application: This compound is primarily used as a photoinitiator in UV-curable formulations, which are applied in coatings, adhesives, inks, and printing plates.

• Benefits:

• High Efficiency: It has a high absorption of UV light, making it very efficient in initiating polymerization reactions.

• Low Migration: Due to its molecular structure, it has low migration properties, which is important in applications where minimal movement of the photoinitiator from the cured product is required.

2. Printing Inks

• Application: Used in the formulation of UV-curable printing inks, especially for packaging materials where rapid curing and high-quality printing are needed.

• Benefits:

• Fast Curing: Enables rapid curing of inks when exposed to UV light, which increases production speeds and efficiency.

• High Gloss and Clarity: Helps produce high-gloss, clear finishes that are aesthetically pleasing and durable.

3. Adhesives and Coatings

• Application: Used in UV-curable adhesives and coatings for various industrial and consumer applications, including electronics, automotive, and consumer goods.

• Benefits:

• Strong Bonding: Provides strong adhesive properties after curing, suitable for high-performance applications.

• Durability: Enhances the durability of coatings, providing resistance to wear, chemicals, and environmental factors.

Safety and Handling

• Toxicity: Like many photoinitiators, 2-Benzyl-2-(dimethylamino)-4'-morpholinobutyrophenone should be handled with care. It can be harmful if inhaled, ingested, or absorbed through the skin. Protective equipment such as gloves and goggles should be worn when handling the compound.

• Environmental Impact: It should be disposed of according to local environmental regulations to prevent contamination. While stable, care should be taken to avoid environmental release.

Summary

2-Benzyl-2-(dimethylamino)-4'-morpholinobutyrophenone is a photoinitiator widely used in UV-curable systems, particularly in coatings, adhesives, and printing inks. Its high efficiency, low migration, and fast-curing properties make it valuable in various industrial applications. Proper handling and disposal are necessary due to its potential toxicity and environmental impact.

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