Back to Search
Start Over
Anionic Polymerization of Acrylic Monomers. 17. Ligated Anionic Living Polymerization of 2-Ethylhexyl Acrylate As Promoted by Polydentate Lithium Alkoxides
- Source :
- Macromolecules. 27:4890-4895
- Publication Year :
- 1994
- Publisher :
- American Chemical Society (ACS), 1994.
-
Abstract
- Different initiators combined with a new family of μ/σ dual ligands, i.e., polydentate alkoxides, were used to initiate the anionic polymerization of 2-ethylhexyl acrylate (2EtHA) at low temperatures. It has been found that lithium 2-(2-methoxyethoxy) ethoxide (LiOEEM) is the most efficient μ/σ ligand in promoting a living polymerization of that monomer. Although LiOEEM gives rise to a molecularly well-controlled P2EtHA at -78°C in a 9/1 toluene/THF mixture, i.e., quantitative field, high initiator efficiency (> 90%), and narrow molecular weight distribution (M w /M n down to 1.05), two-step monomer resumption experiments always lead to a bimodal distribution, suggesting that the LiOEEM-complexed P2EtHA anions are not stable
- Subjects :
- Polymers and Plastics
Bulk polymerization
Chemistry
Organic Chemistry
Cationic polymerization
Solution polymerization
Inorganic Chemistry
Anionic addition polymerization
Chain-growth polymerization
Polymerization
Polymer chemistry
Materials Chemistry
Ionic polymerization
Living anionic polymerization
Subjects
Details
- ISSN :
- 15205835 and 00249297
- Volume :
- 27
- Database :
- OpenAIRE
- Journal :
- Macromolecules
- Accession number :
- edsair.doi...........0fdc5ad433b1483dff07a42c1a00f94c
- Full Text :
- https://doi.org/10.1021/ma00096a007