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Butyl acrylate is an organic compound with the formula CH2=CHCOOCH2CH2CH2CH3. It is an ester of acrylic acid and n-butanol. Butyl acrylate is a colorless liquid with a characteristic acrid odor. It is a member of the acrylate ester family, which are widely used monomers in the production of polymers.

The primary application of butyl acrylate is in the synthesis of polymers and copolymers. It is polymerized through free radical polymerization to form poly(butyl acrylate) or copolymerized with other monomers such as vinyl acetate, styrene, and other acrylates. These polymers find extensive use in various industries. For example, they are key components in adhesives, coatings, textiles, paints, and sealants. The flexibility, tackiness, and water resistance imparted by butyl acrylate units make these polymers suitable for a wide range of applications.

Butyl acrylate is also used as a reactive diluent in certain formulations, helping to reduce viscosity and improve application properties. Its ability to undergo polymerization allows it to be incorporated into the final polymer network.

From a safety perspective, butyl acrylate is considered moderately toxic. It can cause irritation to the skin, eyes, and respiratory tract. Proper handling procedures, including the use of personal protective equipment and adequate ventilation, are essential when working with this chemical. It is also flammable and should be kept away from ignition sources. In terms of environmental impact, butyl acrylate can be harmful to aquatic life.