High-pressure atom transfer radical polymerization of methyl methacrylate for well-defined ultrahigh molecular-weight polymers

Toshihiko Arita, Yuzo Kayama, Kohji Ohno, Yoshinobu Tsujii, Takeshi Fukuda

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)

Abstract

The feasibility of high-pressure atom transfer radical polymerization (ATRP) for synthesizing well-defined polymers of extraordinarily high molecular weights was demonstrated. ATRP of methyl methacrylate (MMA) under pressures up to 500 MPa was investigated at 60 °C. The addition of a small amount of a Cu(II)Cl2/ligand complex along with the general benefits of high pressure of enhancing propagation and suppressing termination brought about an excellent control of polymerization even with an extremely low concentration of ATRP initiator. For example, there was produced PMMA with a number-average molecular weight Mn of 3.6 × 106 and a polydispersity index of 1.24, which had never been achieved by conventional ATRP.

Original languageEnglish
Pages (from-to)2426-2429
Number of pages4
JournalPolymer
Volume49
Issue number10
DOIs
Publication statusPublished - 2008 May 13
Externally publishedYes

Keywords

  • Atom transfer radical polymerization
  • High pressue
  • Living radical polymerization

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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