[en] Polymerisation of methyl methacrylate was conducted by using alkyl lithium/dimethylsulfoxide (DMSO) system as initiator in toluene. A special attention was focused on using some lithium polyetheralkoxides as polymerisation promoters at ambient temperatures. Poly(methyl methacrylate) samples were characterized with Gel Permeation Chromatography (GPC), Nuclear Magnetic Resonance Spectroscopy (H-1 NMR) and Differential Scanning Calorimetry (DSC). The positive effect of the mu/sigma type ligands such as lithium 2-(2-methoxyethoxy)ethoxide (LiOEEM), 2-(methoxy)ethoxide (LiOEM) on controlling the living character, molecular weight, stereo regularity and the yield of the produced polymers was demonstrated. It has been found that this approach provided high polymerisation yields and low polydispersity but low initiator efficiency.
Research Center/Unit :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry Materials science & engineering
Author, co-author :
Nugay, Turgut; Bogazici University, Bebek, Istanbul, Turkey > Department of Chemistry > Polymer Research Center
Nugay, Nihan; Bogazici University, Bebek, Istanbul, Turkey > Department of Chemistry > Polymer Research Center
Jérôme, Robert ; Université de Liège - ULiège > Depratment of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Anionic polymerisation of methyl methacrylate with complex initiator system
Publication date :
July 2002
Journal title :
Polymer Bulletin
ISSN :
0170-0839
eISSN :
1436-2449
Publisher :
Springer-Verlag, New York, United States - New York
The original publication is available at http://www.springerlink.com/content/wqahhqvrn0cp79j0/fulltext.pdf. The authors acknowledge Polymer Bulletin (Springer) for allowing them to archive this paper.
