Acrylate

Acrylates are salts, esters, and conjugate bases of acrylic acid. Acrylic acid is a simple unsaturated carboxylic acid with the chemical formula CH₂=CHCOOH. Acrylates typically contain a vinyl group (CH₂=CH-) directly attached to a carbonyl group (C=O) that is part of an ester or salt.

The term "acrylate" can refer to a wide range of compounds depending on the nature of the alcohol or metal involved in forming the ester or salt. For example, methyl acrylate is an ester formed from acrylic acid and methanol, while sodium acrylate is a salt formed from acrylic acid and sodium hydroxide.

Acrylates are known for their ability to polymerize, forming long chains of repeating units. This polymerization reaction is often initiated by free radicals or other catalysts, leading to the creation of acrylate polymers or copolymers. These polymers are widely used in various applications, including:

• Adhesives: Acrylate polymers provide strong bonding properties in many adhesives.
• Coatings: They form durable and protective films in paints, varnishes, and other coatings.
• Plastics: Acrylates are used in the production of various plastics with specific properties like transparency and flexibility.
• Textiles: They can be applied to textiles to improve their resistance to water, stains, and wear.
• Superabsorbent polymers: Some acrylate polymers can absorb large amounts of water and are used in diapers and other absorbent products.

The specific properties of an acrylate polymer or copolymer depend on the type of acrylate monomer used, the polymerization method, and any additives included in the formulation. Different acrylate monomers offer varying levels of hardness, flexibility, and chemical resistance.