Graft Copolymers with Complex Polyether Structures: Poly( ethylene oxide)- graft Poly( isobutyl vinyl ether) by Combination of Living Anionic and Photoinduced Cationic Graft Polymerization


Kahveci M. Ü. , MANGOLD C., FREY H., Yağcı Y.

MACROMOLECULAR CHEMISTRY AND PHYSICS, cilt.215, ss.566-571, 2014 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 215 Konu: 6
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1002/macp.201300794
  • Dergi Adı: MACROMOLECULAR CHEMISTRY AND PHYSICS
  • Sayfa Sayısı: ss.566-571

Özet

A novel polymerization mechanism transformation strategy, involving anionic ring-opening polymerization and photoinduced cationic polymerization, is successfully applied for the synthesis of poly(ethylene oxide)-graft-poly(isobutyl vinyl ether) (PEO-g-PIBVE). First, poly(ethylene oxide-co-ethoxyl vinyl glycidyl ether) [P(EO-co-EVGE)] is synthesized by living anionic polymerization. The vinyl moieties of the functional PEO-based polymer are converted to the hydrogen iodide adduct by photolysis of diphenyliodonium iodide, monitored using NMR spectroscopy. A modified mode of Lewis acid-catalyzed living cationic polymerization is performed as a grafting from method to generate PIBVE segments grafted onto the PEO main chain. Both the intermediates and the final graft copolymers are characterized by gel-permeation chromatography (GPC) and H-1 NMR analysis. image