Anionic syntheses of terminally functionalized ethylene oligomers

Synthetic procedures for preparation of terminally functionalized linear ethylene oligomers are described. The preferred synthetic method is anionic oligomerization of ethylene with n‐butyllithium–tetramethylethylenediamine and electrophilic substitution of the living oligomer so‐formed. Conditions...

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Bibliographic Details
Published in:Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 1989-11, Vol.27 (12), p.4205-4226
Main Authors: Bergbreiter, David E., Blanton, J. R., Chandran, R., Hein, M. D., Huang, K.-J., Treadwell, D. R., Walker, S. A.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:Synthetic procedures for preparation of terminally functionalized linear ethylene oligomers are described. The preferred synthetic method is anionic oligomerization of ethylene with n‐butyllithium–tetramethylethylenediamine and electrophilic substitution of the living oligomer so‐formed. Conditions and procedures for subsequent chemistry to elaborate the end groups of these oligomers are described. These procedures afford strictly linear ethylene oligomers which contain a wide variety of end groups and which range in molecular weight from 1000 to 4500 (Mn). The product oligomers were characterized spectroscopically as toluene‐d8 solutions at 110°C using multinuclear NMR, FT‐IR, fluorescence, and UV‐visible spectroscopies as appropriate. Alternative stepwise approaches to such oligomers are also discussed.
ISSN:0887-624X
1099-0518
DOI:10.1002/pola.1989.080271226