PEG Acrylate is a reactive PEG derivative containing a vinyl group (-CH=CH2) that can be free-radically polymerized with an initiator under UV light or heat. It can be used to modify proteins, peptides and other materials with acrylic groups. Polyethylene glycol reduces the immunogenicity of peptides and proteins while increasing their solubility and stability. At the same time, PEG Acrylate can also carry out the thiol-ene reaction, but requires the presence of ultraviolet light.