Illustrated Glossary of Organic Chemistry

Acrylic acid: The α,β-unsaturated carboxylic acid having the molecular structure shown below. IUPAC name prop-2-enoic acid. The acrylate group is a piece of molecular structure equal to acrylic acid minus the carboxylic acid proton. An acrylate is a molecular structure containing an acrylate group.






Molecular structure of acrylic acid.   
Acrylate group.
  
Methyl acrylate.
The acrylate group is shown in red