Ferrocene-containing multifunctional polyethers: Monomer sequence monitoring via quantitative 13C NMR spectroscopy in bulk

Arda Alkan, Adrian Natalello, Manfred Wagner, Holger Frey, Frederik R. Wurm*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

32 Citations (Scopus)

Abstract

Ferrocenyl glycidyl ether (fcGE) and allyl glycidyl ether (AGE) are copolymerized via living anionic ring-opening polymerization to generate polyfunctional copolymers with molecular weights up to 40-300 g/mol and low molecular weight dispersities (Mw/Mn < 1.18). Copolymerizations were carried out in bulk at 100 °C and unexpectedly found to proceed without any isomerization of the allyl double bonds. The copolymerization behavior of fcGE and AGE was monitored by in situ quantitative 13C NMR kinetic measurements in bulk, evidencing the formation of random copolymers under these conditions, showing no gradient of comonomer incorporation. The redox-active behavior of the copolymers and homopolymers of fcGE was studied by cyclic voltammetry (CV). In order to demonstrate possible postmodification reactions, the random copolymers were modified with N-acetyl-l-cysteine methyl ester via a thiol-ene addition. All polymers have furthermore been characterized by 1H NMR spectroscopy, DOSY 1H NMR spectroscopy, size exclusion chromatography (SEC), and MALDI-ToF mass spectrometry.

Original languageEnglish
Pages (from-to)2242-2249
Number of pages8
JournalMacromolecules
Volume47
Issue number7
DOIs
Publication statusPublished - 8 Apr 2014
Externally publishedYes

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