Deep-red emissive conjugated poly(2,6-BODIPY-ethynylene)s bearing alkyl side chains
Document Type
Article
Publication Date
10-15-2009
Department
Department of Chemistry
Abstract
Novel deep-red emissive poly(2,6-BODIPY-ethynylene)s bearing dodecyl side chains (polymers A, B, and C) have been prepared by palladium-catalyzed Sonogashira polymerization of 2,6-diiodo-functionalized BODIPY monomers with 2,6-diethynyl-functionalized BODIPY monomers. These polymers emit in the deep-red region with emission maxima at up to 690 nm, and exhibit significant red shifts (up to 166 and 179 nm) of both absorption and emission maxima compared with their parent BODIPY dyes due to significant extension of π-conjugation. These polymers possess good thermal stability with decomposition temperature between 270 and 360°C. The polymers exhibit a little larger Stokes shifts and shorter lifetime than their corresponding BODIPY dyes. The solid state thin films of polymers A, B, and C emit in near-infrared region between 723 and 743 nm, and show significantly red shifts (up to 57 nm) in absorption and emission maxima relative to their polymer solution.
Publication Title
Journal of Polymer Science, Part A: Polymer Chemistry
Recommended Citation
Donuru, V.,
Vegesna, G.,
Velayudham, S.,
Meng, G.,
&
Liu, H.
(2009).
Deep-red emissive conjugated poly(2,6-BODIPY-ethynylene)s bearing alkyl side chains.
Journal of Polymer Science, Part A: Polymer Chemistry,
47(20), 5354-5366.
http://doi.org/10.1002/pola.23585
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/3847
Publisher's Statement
© 2009 Wiley Periodicals, Inc. Publisher’s version of record: https://doi.org/10.1002/pola.23585