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Highly Defined ABC Triblock Cooligomers and Copolymers Prepared by ROMP Using an N ‐Heterocyclic‐Carbene‐Substituted Ruthenium Benzylidene Initiator
Author(s) -
Slugovc Christian,
Riegler Silvia,
Hayn Gertraud,
Saf Robert,
Stelzer Franz
Publication year - 2003
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200390062
Subject(s) - romp , norbornene , copolymer , gel permeation chromatography , carbene , polymer chemistry , metathesis , chemistry , permeation , polymerization , organic chemistry , polymer , membrane , catalysis , biochemistry
The “3 rd generation Grubbs” initiator (H 2 IMes)(3‐bromopyridine) 2 (Cl) 2 RuCHPh ( 1 ) accomplishes the synthesis of ABC triblock copolymers via living ring‐opening metathesis polymerisation (ROMP) of norbornene derivatives. Complete initiation and an outstanding tolerance of functional groups are provided, which is proven by a combined study by means of matrix‐assisted laser desorption/ionisation mass spectrometry, gel permeation chromatography and NMR spectroscopy on an ABC triblock cooligomer.Gel permeation chromatograms of oligo A , oligo AB , and oligo ABC .