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Dendritic Stars by Ring‐Opening‐Metathesis Polymerization from Ruthenium–Carbene Initiators
Author(s) -
Gatard Sylvain,
Nlate Sylvain,
Cloutet Eric,
Bravic Georges,
Blais JeanClaude,
Astruc Didier
Publication year - 2003
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200390137
Subject(s) - romp , ruthenium , carbene , norbornene , ring opening metathesis polymerisation , metathesis , polymerization , dendrimer , polymer chemistry , ring opening polymerization , chemistry , materials science , polymer , organic chemistry , catalysis
A star in the making: A new ruthenium–carbene complex has been synthesized by using a diphosphane ligand that models the dendritic branch of poly(diphosphane) dendrimers. First, second, and third generation metallodendrimers derived from diaminobutane polyamines, with 4, 8, and 16 ruthenium‐containing branches, respectively, have been synthezised and shown to initiate the ring‐opening‐metathesis polymerization (ROMP) of norbornene at room temperature to form metallodendritic polymer stars (see scheme; P =PCy 2 ).