Comparative study on surface-initiated ATRP and SI-ARGET ATRP of Oligo(ethylene glycol) methacrylate on gold

Bong Soo Lee, Ji Yup Kim, Ji Hun Park, Woo Kyung Cho, Insung S. Choi

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Oligo(ethylene glycol) methacrylate (OEGMA) was polymerized from a polymerization initiatorpresenting gold substrate by Activator ReGenerated by Electron Transfer Atom Transfer Radical Polymerization (ARGET ATRP) in water. Compared with the normal surface-initiated ATRP (SIATRP), SI-ARGET ATRP of OEGMA proceeded smoothly in the presence of air with l-ascorbic acid as a reducing agent and a CuBr2/2,2′-bipyridyl complex at the ppm level. In addition, SI-ARGET ATRP did not require the additional steps for removing a polymerization inhibitor from the OEGMA monomer and for deoxygenating the solvent. The ellipsometric measurements showed that the polymerized OEGMA (pOEGMA) films prepared by SI-ARGET ATRP were on average 10 times thicker than those prepared by normal SI-ATRP with the same monomer concentration and polymerization time.

Original languageEnglish
Pages (from-to)3106-3109
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Volume16
Issue number3
DOIs
StatePublished - Mar 2016

Keywords

  • ARGET ATRP
  • Gold
  • L-ascorbic acid
  • OEGMA
  • Surface-initiated polymerization

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