Segmented conjugated macromolecules containing silicon and boron: ADMET synthesis and luminescent properties

Arijit Sengupta, Ami Doshi, Frieder Jaekle, Ralf M. Peetz

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Boron- and silicon-containing conjugated homo- and copolymers could be synthesized using acyclic diene metathesis (ADMET) condensation of bis-styryl monomers. Both, tri-and tetra-coordinated boron monomers were successfully polymerized forming homopolymers, or random copolymers (if polymerized together with a silicon containing co-monomer). Polymer molecular weights Mn were measured at ∼6000 to 15,000 g/mol (NMR end group analysis) with molecular weight distributions Mw/Mn ∼1.8 to 2.2. The polymers absorbed at λmax ∼317 to 406 nm and emitted at λmax ∼370 to 494 nm with fluorescent quantum efficiencies ∼24 to 48%. The copolymer with tri-coordinate boron showed highly efficient fluorescence quenching in the presence of fluoride ions at ratios boron/fluoride ∼5/1, demonstrating its potential as anion sensor.

Original languageEnglish (US)
Pages (from-to)1707-1718
Number of pages12
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume53
Issue number14
DOIs
Publication statusPublished - Jul 15 2015

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All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Keywords

  • boron
  • conjugated polymers
  • fluorescence property
  • metathesis
  • polycondensation
  • sensors
  • silicon

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