Electron transfer reactions of radical anions with TEMPO: A versatile route for transformation of living anionic polymerization into stable radical-mediated polymerization

Cianga I., SENYO T., ITO K., Yagci Y.

MACROMOLECULAR RAPID COMMUNICATIONS, cilt.25, sa.19, ss.1697-1702, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25 Sayı: 19
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1002/marc.200400319
  • Dergi Adı: MACROMOLECULAR RAPID COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1697-1702
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

The possibility of transforming a living anionic polymerization into a stable radical-mediated radical polymerization (SFRP) was demonstrated. For this purpose, 2,2,6,6-tetramethylpiperidine-N-oxyI (TEMPO) alcoholate, formed by a one-electron redox reaction between potassium naphthalene and TEMPO, was used to initiate the living anionic polymerization of ethylene oxide (EO). Poly(ethylene oxide) obtained in this way possessed TEMPO terminal units and was subsequently used as an initiator for the SFRP of styrene to give block copolymers.