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Study of the Propagation Center in the Anionic Polymerization of (Meth)acrylic Monomers: NMR and MO LCAO Study of the Interaction of Di- tert -butyl 2-Lithio-2,4,4-trimethylglutarate and the Living Poly( tert -butyl methacrylate) Oligomers with Lithium 2-(2-Methoxyethoxy)ethoxide in Tetrahydrofuran

✍ Scribed by Zune, C.; Dubois, P.; Jérôme, R.; Kříž, J.; Dybal, J.; Lochmann, L.; Janata, M.; Vlček, P.; Werkhoven, T. M.; Lugtenburg, J.

Book ID: 127102034
Publisher: American Chemical Society
Year: 1998
Tongue: English
Weight: 268 KB
Volume: 31
Category: Article
ISSN: 0024-9297
DOI: 10.1021/ma971368s

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## Abstract In contrast to methyl 2‐lithioisobutyrate (I), __tert__‐butyl 2‐lithioisobutyrate (A) in tetrahydrofuran (THF) appears to have one form only, irrespective of concentration (0,1‐0,8 mol/L) or temperature (203–273 K). According to its relaxation characteristics, this form probably is a te

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Study of the propagation centre in the anionic polymerization of (meth)acrylic monomers, 7. Study of the interaction of the living dimer with lithium tert-butoxide in tetrahydrofuran

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## Abstract Using ^1^H, ^6^I i, ^7^Li and ^13^C NMR, di‐__tert__‐butyl 2‐lithio‐2,4,4‐trimethylglutarate (A) as a dimeric model of the living poly(__tert__‐butyl methacrylate) is shown to form well‐defined aggregates with lithium __tert__‐butoxide (B) in tetrahydrofuran. The prevailing aggregates w