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IRTG / Soft Matter Science
Freiburger Materialforschungszentrum
Stefan-Meier-Str. 21
79104 Freiburg, Germany

Contact: Jana Husse

+49 761 203 678 34
softmattergraduate[at]uni-freiburg.de


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You are here: Home Events Dr. Frédéric Peruch "Enzymes in polymer chemistry and reversible elastomeric networks"

Dr. Frédéric Peruch "Enzymes in polymer chemistry and reversible elastomeric networks"

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Laboratoire de Chimie des Polymères Organiques (Bordeaux University, CNRS, Bordeaux INP), 16 avenue Pey Berland, 33607 PESSAC Cedex, FRANCE

What
  • Seminar
When May 15, 2019
from 02:15 PM to 03:00 PM
Where Seminarraum A, FMF, Stefan-Meier-Str. 21, Freiburg
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During this seminar, I will address 2 topics that are developed in my group. First, it will be presented the use of enzymes as an alternative of transition metal based catalysts, which reveal to be impurities for some applications (biomedical and microelectronics for example). Enzymes have the advantage to be metal-free, to perform the reactions in mild conditions and to be also selective. Recent examples developed will be presented.

Second, a method to synthesize reversibly cross-linked polybutadiene or polyisoprene networks based on covalent bonding will be presented. High molar mass polymers were first chemically degraded into smaller chains, in order to obtain a liquid/viscous polymer. Then, polymeric chain were modified in order to develop reversible interactions, giving access to a reversible network. Thermal stability of the material was investigated as well as their elastic properties. Impact of the chain length, cross-linking density and recyclability of the reversible networks will be particularly discussed.
 
References
1.    “6-O-glucose palmitate synthesis with lipase: Investigation of some key parameters” Mol. Catal., 460, 63-68, 2018
2.    “Controlled degradation of polyisoprene and polybutadiene: a comparative study of two methods and importance of the purification step” Polym. Degrad. Stab., 154, 295-303, 2018
3.    “Recyclable cross-linked polybutadiene based on telechelic Diels-Alder chemistry” Macromolecules, 51, 651-659, 2018
4.    “Telechelic polybutadienes or polyisoprenes for recyclable elastomeric networks” Macromol. Rapid Commun., 38, 1700475, 2017
5.    “Engineering of Candida Antarctica lipase B for poly(ε-caprolactone) synthesis” Eur. Polym. J., 95, 809-819, 2017
 

invited by Prof. Pierre Lutz

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