Synthesis and characterization of linear diblock and triblock copolymers of 2-vinyl pyridine and ethylene oxide

Panagiota G. Fragouli, Hermis Iatrou, Nikolaos Hadjichristidis*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

This work describes a synthesis of linear diblock and triblock copolymers of 2-vinyl pyridine (2VP) and ethylene oxide (EO). The overall synthetic approach involved polymerization of 2VP, followed by polymerization with EO. Neutralization of the reactive end-groups of the living diblock P2VP-b-PEO(-)K(+) produced the diblock copolymer P2VP-b-PEO. Reaction with dibromoxylene in the presence of CsI led to the triblock copolymer, P2VP-b-PEO-b-P2VP. The triblock copolymers were separated by fractionation at 40 °C. Copolymers were characterized by size exclusion chromatography, light scattering and nuclear magnetic resonance spectroscopy. Characterization showed that the materials have high molecular and compositional homogeneity.

Original languageEnglish (US)
Pages (from-to)7141-7144
Number of pages4
JournalPolymer
Volume43
Issue number25
DOIs
StatePublished - Oct 28 2002

Keywords

  • Benzylpotassium
  • P2VP-b-PEO-b-P2VP
  • Sequential anionic polymerization

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

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