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Anionic polymerization of primary acrylates as promoted by Lithium 2-(2-Methoxyethoxy) ethoxide
Nugay, Nihan; Nugay, Turgut; Jérôme, Robert et al.
1997In Journal of Polymer Science. Part A, Polymer Chemistry, 35 (2), p. 361-369
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Keywords :
anionic polymerization; (meth)acrylate
Abstract :
[en] Some primary acrylates, such as methyl, ethyl, n-butyl, and n-nonyl acrylate (MA, EA, nBuA and nNonA, respectively) have been anionically polymerized by using diphenylmethyl lithium (DPMLi) as an initiator, in the presence of a chelating - dual ligand, i.e., a polydentate lithium alkoxide, at low temperature. It has been found that lithium 2-(2-methoxyethoxy) ethoxide (LiOEEM) is a very efficient ligand in preventing the anionic polymerization of these monomers from being disturbed by significant secondary transfer and termination reactions. Even for the difficult cases of ethyl and methylacrylate, that approach provides high polymerization yields and low polydispersity, allowing the molecular weight to be predetermined. LiOEEM/initiator molar ratio, solvent polarity, temperature and monomer concentration have proved to be key parameters in the control of the polymerization process. The efficiency of that control is however dependent on the monomer structure and improves with the length of the n-alkyl substituent, i.e., MA < EA < nBuA < nNonA.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry
Materials science & engineering
Author, co-author :
Nugay, Nihan;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Nugay, Turgut;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Robert ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Teyssié, Philippe ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Anionic polymerization of primary acrylates as promoted by Lithium 2-(2-Methoxyethoxy) ethoxide
Publication date :
30 January 1997
Journal title :
Journal of Polymer Science. Part A, Polymer Chemistry
ISSN :
0887-624X
eISSN :
1099-0518
Publisher :
John Wiley & Sons, Hoboken, United States - New Jersey
Volume :
35
Issue :
2
Pages :
361-369
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
NATO (Science Fellowship Program)
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
Atochem
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since 24 June 2009

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