Dichlorocarbene adducts of 1,4-polybutadienes. Improved synthesis and characterization by high-field NMR
β Scribed by Siddiqui, Shahabuddin; Cais, Rudolf E.
- Book ID
- 126951228
- Publisher
- American Chemical Society
- Year
- 1986
- Tongue
- English
- Weight
- 780 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0024-9297
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π SIMILAR VOLUMES
A series of high trans-1,4-low-cis-1,4-high trans-1,4-stereotriblock polybutadienes (HTPB-b-LCPB-b-HTPBs) were synthesized through a sequential anionic polymerization of butadiene (Bd) initiated by barium salt of di(ethylene glycol) ethylether/triisobutylaluminium/dilithium (BaDEGEE/TIBA/DLi). The p
Analysis of the CH--S and CH--CI multiplets in the t3C NMR spectra of modified polymers indicates that the addition of benzenesulphenyl chloride to cis-l,4-polybutadiene is not wholly random. The analysis of the methylene resonances was inconclusive because of peak overlap and other uncertainties.