Departmental seminar: 29 November 2013

Posted on November 26, 2013

Ingénierie et Architectures Macromoléculaires; Institut Charles Gerhardt - 8, Rue de l'Ecole Normale, F-34296 Montpellier Cedex (France)
e-mail address [email protected]
 

Date: Friday, 29 November 2013

Time: 11:30 - 12:30

Venue: The Avogadro (3.22), Chemistry Building

Fluorinated polymers are remarkable because of their thermal, chemical and oxidative stability making them useful in specific applications such as non-sticky paints and coatings, chemically resistant O-rings and seals, membranes for fuel cells, separators and binders for lithium ion batteries, wires and cable insulation, and so on. They are mainly synthesized by radical (co)polymerization of fluoroalkenes. Among fluorinated polymers, poly(vinylidene fluoride) (PVDF) is one the most often used since it can be synthesized according to usual radical pathways, just like VDF containing–copolymers that lead to many applications

Among the techniques possible to allow controlled radical (co)polymerization of VDF, only three main routes are possible: iodine transfer polymerization (ITP), the oldest by far; macromolecular design via interchange of xanthates (MADIX); and the use of borinates. Details of the radical copolymerization of vinylidene fluoride with other fluoromonomers will be discussed. The materials thus obtained are used in various applications such as fuel cell membranes, F-surfactants as alternatives to PFOA, or for sc-CO2 media, and novel F-elastomers.
Contact person: Prof. Philip Crouse (012) 420 2856 [email protected]

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