Complexes of butadienyllithium oligomers with tetramethylethylenediamine and polymer microstructure in diamine modified butadiene polymerization

The effect of tetramethylethylenediamine on 2 one-unit butadiene anionic polymerization models has been studied in cyclopentane. Both were found to have a mixture of cis and trans allylic structures over a wide range of amine to lithium ratios. Polybutadiene microstructures were also determined. Hig...

Full description

Saved in:
Bibliographic Details
Published in:European polymer journal 1986, Vol.22 (9), p.707-710
Main Authors: Werbowyj, R., Bywater, S., Worsfold, D.J.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effect of tetramethylethylenediamine on 2 one-unit butadiene anionic polymerization models has been studied in cyclopentane. Both were found to have a mixture of cis and trans allylic structures over a wide range of amine to lithium ratios. Polybutadiene microstructures were also determined. Highly 1,2-polybutadienes are formed at amine to lithium ratios considerably below unity. The results are compared with those obtained by use of 1,2-dipiperidinoethane which induces a higher fraction of trans active centres and even higher 1,2 contents in polybutadiene.
ISSN:0014-3057
1873-1945
DOI:10.1016/0014-3057(86)90119-9