Vinylidene-based polymers by Rh(i)-NHC catalyzed thiol–yne click polymerization: synthesis, characterization and post-polymerization modification†
Daniel
Funes-Hernando, 
‡a
Pablo
Hermosilla,
‡a
Andrea
Di Giuseppe,
*a
Ricardo
Castarlenas,
a
Luis A.
Oro
a
and
Jesús J.
Pérez-Torrente
*a
‡a
Pablo
Hermosilla,
‡a
Andrea
Di Giuseppe,
*a
Ricardo
Castarlenas,
a
Luis A.
Oro
a
and
Jesús J.
Pérez-Torrente
*a
Abstract
Complex RhCl(IPr)(pyridine)(η2-coe) (IPr = 1,3-bis-(2,6-diisopropylphenyl)imidazol-2-ylidene) efficiently catalyzes the polyhydrothiolation of aromatic diynes with aliphatic dithiols to give vinylidene-based polymers (vinylidene content of 80%) with high molecular weights (Mw up to 199 000). These polymers have been shown to be chemically modifiable through hydrogenation and chemical oxidation processes.
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