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Synthèse et caractérisation de copolymères coordinés par des sels métalliques

✍ Scribed by Rietsch, François ;Bottiglione, Vincent ;Morcellet, Joëlle

Publisher
Wiley (John Wiley & Sons)
Year
1979
Weight
331 KB
Volume
180
Category
Article
ISSN
0025-116X

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✦ Synopsis

Abstract

The anionic block copolymerisation of isoprene and 2‐vinylpyridine (2VP) followed by a coordination with iron (III) chloride, leads to thermoreversibly crosslinked copolymers. These copolymers are character+ed by a low polydispersity (M̄~w~/M̄~w~≈1,1) between the coordination nodules of poly(2‐vinylpyridine). The study of the swelling ratio at the equilibrium in benzene shows that such a polymeric network does not reach the equilibrium state expected from the thermodynamic analysis of the system. The presence of 2VP in the copolymer induces a screening effect which prevents the solvent diffusion through the polyisoprene network.

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