Segmented conjugated macromolecules containing silicon and boron: ADMET synthesis and luminescent properties |
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| Authors: | Arijit Sengupta Ami Doshi Frieder Jäkle Ralf M. Peetz |
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| Affiliation: | 1. Department of Chemistry, City University of New York at Staten Island and Graduate Center, Staten Island, New York;2. Department of Chemistry, Rutgers University, Newark, New Jersey |
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| 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. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2015 , 53, 1707–1718 |
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| Keywords: | boron conjugated polymers fluorescence property metathesis polycondensation sensors silicon |
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