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Updated: Mar 15, 2026

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst
Published on: April 22, 2016
Photoreactive Initiator for Surface-Initiated ATRP on Versatile Polymeric Substrates
Kyoko Fukazawa, Aiko Nakao1, Mizuo Maeda1
1Bioengineering Laboratory, RIKEN , 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
Abstract:
We synthesized 4-azidophenylcarbonyloxyethyl-2-bromoisobutyrate (AzEBI) for construction of a polymer brush layer on a desired area on various polymeric substrates. After 3.0 min of exposure to UV irradiation, the phenylazide groups of AzEBI decomposed and formed covalent bonds with the polymeric substrate surfaces to introduce an initiator of atom transfer radical polymerization (ATRP). The reaction area of AzEBI was regulated using a photomask during photoreaction and surface initiated ATRP of 2-methacryloyloxyethyl phosphorylcholine (MPC) occurred on the desired part of the surface. In the area with poly(MPC), the surface was superhydrophilic and the adhesion of HeLa cell was effectively suppressed. The AzEBI allows the construction of polymer brush layer in anywhere and would expand the potential application of ATRP to prepare polymer brush layer on polymeric substrates.
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