Highly Defined ABC Triblock Cooligomers and Copolymers Prepared by ROMP Using an N-Heterocyclic-Carbene-Substituted Ruthenium Benzylidene Initiator
✍ Scribed by Christian Slugovc; Silvia Riegler; Gertraud Hayn; Robert Saf; Franz Stelzer
- Book ID
- 102494347
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 282 KB
- Volume
- 24
- Category
- Article
- ISSN
- 1022-1336
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
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 oligoA, oligoAB, and oligoABC.
magnified imageGel permeation chromatograms of oligoA, oligoAB, and oligoABC.