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Reactivities of fluorenyl species as ethylene oxide polymerization initiators—II. Mechanisms of the ring opening of ethylene oxide by fluorenyl and 9-methylfluorenyl alkali salts

✍ Scribed by D. Lassalle; S. Boileau; P. Sigwalt

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
452 KB
Volume
13
Category
Article
ISSN
0014-3057

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Reactivities of fluorenyl species as eth
Reactivities of fluorenyl species as ethylene oxide polymerization initiators—III. Kinetic studies with 9-methylfluorenyl alkali salts
✍ D. Lassalle; S. Boileau; P. Sigwalt 📂 Article 📅 1977 🏛 Elsevier Science 🌐 English ⚖ 321 KB

It has been shown that initiation of the anionic polymerization of ethylene oxide by 9-methylfluorenyl alkali salts is a simple process of addition whereas side reactions occur for fluorenyl salts. Reactivities of different kinds of ionic species were determined by spectropbotometry in the case of 9

Reactivities of fluorenyl species as eth
Reactivities of fluorenyl species as ethylene oxide polymerization initiators—I. Ultraviolet and visible absorption spectra of 9-methylfluorenyl alkali salts
✍ D. Lassalle; S. Boileau; P. Sigwalt 📂 Article 📅 1977 🏛 Elsevier Science 🌐 English ⚖ 252 KB

Al~tract--The behaviour of 9-methylfluorenyl alkali salts is nearly the same as that of the corresponding fluorenyl salts, as shown by studies of the effects of temperature, counterion and solvent on the ultraviolet and visible spectra. A marked shift in ). max on substituting a methyl group on the