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Mechanism‐Based Design of a ROMP Catalyst for Sequence‐Selective Copolymerization
Author(s) -
Bornand Marc,
Chen Peter
Publication year - 2005
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.200502606
Subject(s) - romp , norbornene , copolymer , monomer , carbene , moiety , polymer chemistry , chemistry , catalysis , polymer , cyclooctene , combinatorial chemistry , polymer science , polymerization , organic chemistry , metathesis
Back and forth like a metronome is how the carbene moiety swings in a dual‐site catalyst which produces a predominantly alternating copolymer of norbornene and cyclooctene from a one‐pot reaction of appropriate mixtures of the two monomers (see scheme). The alternating sequence of the polymer was confirmed by NMR spectroscopy and gel‐permeation gravimetric analysis.