ISCR 2024 conferences - Frieder Jäkle, CNRS Ambassador

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Putting boron into polymers: new functional materials
Putting boron into polymers: new functional materials

The CNRS Chemistry has launched the "Ambassadors" program, a unique program that allows to invite prestigious scientists based abroad for a lecture tour in CNRS laboratories.
In this context, the Rennes Institute of Chemical Sciences (ISCR) is pleased to welcome in Rennes Professor Frieder Jäkle , Department of Chemistry, Rutgers University-Newark, USA.
The placement of heteroatoms in the main chain or side chains of polymers is receiving ever increasing attention as an approach to new functional materials with superior properties. In particular, the ability of boron to participate in π-delocalization can have a dramatic effect on the optoelectronic properties of conjugated materials by lowering the LUMO orbital levels. The electron-deficient character of boron also enables the reversible formation of Lewis pairs (LPs) by interaction of Lewis acids with Lewis bases. As will be illustrated in this presentation, the judicious decoration of polymers with organoborane Lewis acid sites can be exploited in chemosensing, stimuli-responsive materials, and the development of supported catalysts that rely on the ability of Lewis acids to activate small molecules. In addition, new “smart” dynamic materials, such as reprocessible elastomers, can be generated by embedding both Lewis acid and Lewis base sites into polymer networks. Finally, we show that the isosteric replacement of C-C units with more polarized B-N units offers access to unprecedented polymeric materials and to analogs of commodity polymers with modified materials properties.
Frieder Jäkle is a Distinguished Professor and currently the Chair of the Department of Chemistry at the Newark Campus of Rutgers University. He received his Diploma in 1994 and Ph.D. in 1997 from TU München, Germany, under the direction of Prof. Wagner. After a postdoctoral stint with Prof. Manners at the University of Toronto he joined Rutgers University in 2000. His research interests revolve around main group chemistry as applied to materials and catalysis, encompassing projects on organoborane Lewis acids, conjugated hybrid materials, luminescent materials for optoelectronic and sensory applications, stimuli-responsive and supramolecular polymers. He is the recipient of an NSF CAREER award (2004), Alfred P. Sloan fellowship (2006), Friedrich Wilhelm Bessel Award of the Alexander von Humboldt Foundation (2009), ACS Akron Section Award (2012), Boron Americas Award (2012) and Board of Trustees Research Award of Rutgers University (2017). In 2019 he was named a Fellow of the American Chemical Society. He has served on the editorial advisory boards of several journals, including Macromolecules, ACS Macro Letters, Organometallics, and Materials Today Communications.
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