Polyoctadecyl methacrylate brushes via surface-initiated atom transfer radical polymerization

Heemin Yoo, Bo Yun Kim, Lawrence J. Hill, Jared J. Griebel, Woo Jin Chung, Jeffrey Pyun

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

The synthesis of poly(octadecyl methacrylate) brushes on planar Si substrates using surface-initiated atom transfer radical polymerization (SI-ATRP) is reported. SI-ATRP of octadecyl methacrylate from a silane initiator-modified Si substrate yielded well-defined homopolymer brushes of varying molar mass (5000-38 000 g mol-1) and film thickness from around 2 to 20 nm. Correlation of both free polymer molar mass and brush thicknesses confirmed controlled surface-initiated ATRP from these modified surfaces. By optimization of brush molar mass, film thickness and thin-film processing, we observed side chain crystallization of tethered poly(octadecyl methacrylate) chains, resulting in the formation of lamellar morphologies with high-aspect-ratio nanofibers.

Original languageEnglish (US)
Pages (from-to)378-682
Number of pages305
JournalApplied Organometallic Chemistry
Volume27
Issue number11
DOIs
StatePublished - Nov 2013

Keywords

  • ATRP
  • polymer brushes
  • polyoctadecyl methacrylate
  • surface-initiated polymerizations

ASJC Scopus subject areas

  • Chemistry(all)
  • Inorganic Chemistry

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