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Anionic polymerization of dienes using oligobutadienyl-lithium as initiator

✍ Scribed by Almeida, C. L.; Akcelrud, L. C.

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 127 KB
Volume: 47
Category: Article
ISSN: 0959-8103
DOI: 10.1002/(sici)1097-0126(199812)47:4<497::aid-pi94>3.0.co;2-u

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✦ Synopsis

The aim of this work is to combine the microstructure of a radicalpolymerized diene (butadiene and isoprene) with the functionality of an anionically prepared one, which could be used for polyurethane preparation after functionalization. A two-step anionic procedure was used in order to obtain a hydrocarbon-soluble lithium-based initiator. When compared with the related anionic polymers obtained under classical conditions, the vinyl content of the polydienes was three times greater. These Ðndings are discussed on a mechanistic basis.

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