Synthesis and Characterization of Linear Tetrablock Quarterpolymers of Styrene, Isoprene, Dimethylsiloxane, and 2-Vinylpyridine

Panagiota G. Fragouli, Hermis Iatrou, Nikos Hadjichristidis*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

A series of five tetrablock quarterpolymers of styrene, isoprene, dimethylsiloxane, and 2-vinylpyridine with molecular weights varying from 117 × 103 to 177 × 103 and having different compositions were synthesized. The synthesis was based on recent advances in the controlled high-vacuum anionic polymerization of hexamethylcyclotrisiloxane and on the selective linking of poly(dimethylsiloxane)lithium with the chlorosilane group of the heterofunctional linking agent chloromethylphenylethylene dimethylchlorosilane. Combined characterization results by size exclusion chromatography, membrane osmometry, and NMR spectroscopy suggested that the synthesized multiblock multicomponent polymers had a high degree of structural and compositional homogeneity.

Original languageEnglish (US)
Pages (from-to)514-519
Number of pages6
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume42
Issue number3
DOIs
StatePublished - Feb 1 2004
Externally publishedYes

Keywords

  • Anionic polymerization
  • Heterofunctional linking agent
  • Multiblock multicomponent polymers
  • Tetrablock quarterpolymers
  • Triblock terpolymers

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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