CpRuCl(η2-CH2CHCN)(PPh3): A novel catalyst for atom transfer radical polymerization of styrene and the effect of Et2NH as additive

The well‐defined organometallic compound Cp*RuCl(η2‐CH2 CHCN)(PPh3) in conjunction with ethyl 2‐bromopropionate as initiator promote controlled/living radical polymerization of styrene at 90°C. Molecular weight increased linearly with conversion and was in good agreement with the theoretical molecu...

Full description

Saved in:
Bibliographic Details
Published in:Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 2006-01, Vol.44 (1), p.676-680
Main Authors: Saenz-Galindo, Aidé, Textle, Hortencia Maldonado, Jasso, Alfredo Rosales, Torres-Lubián, José Román
Format: Article
Language:English
Subjects:
Applied sciences
atom transfer radical polymerization (ATRP)
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
ruthenium catalysts
styrene polymerization
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The well‐defined organometallic compound Cp*RuCl(η2‐CH2 CHCN)(PPh3) in conjunction with ethyl 2‐bromopropionate as initiator promote controlled/living radical polymerization of styrene at 90°C. Molecular weight increased linearly with conversion and was in good agreement with the theoretical molecular weight. Observed polydispersities were narrow (1.07–1.04) and decreased with monomer conversion. When a proportion of 5:1 equivalents of diethylamine:initiator was added to the initiating system, an increase of 9 times in the polymerization rate was observed, keeping a good control of polymerization process, as polydispersity changed to 1.09–1.17.
ISSN:0887-624X
1099-0518
DOI:10.1002/pola.21182