𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Polybutadiènes hydroxytéléchéliques, 3. Silylation des fonctions alcool des polybutadiènes hydroxytéléchéliques radicalaires et détermination de la fonctionnalité moyenne en nombre par 1H NMR

✍ Scribed by Fages, Geneviève ;Pham, Quang-Tho


Publisher
Wiley (John Wiley & Sons)
Year
1979
Weight
466 KB
Volume
180
Category
Article
ISSN
0025-116X

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

A number of hydroxytelechelic polybutadiene samples were silylated. The completeness of the silylation reaction allows the determination of the number average functionality by continuous wave ^1^H NMR. The protonated groups of the silylated alcohol functions were identified at 100 and 250 MHz. It is observed that these three primary alcohol functions do not have the same reactivity towards hexamethyldisilazane as silylating agent.


📜 SIMILAR VOLUMES


Synthèse de polybutadiènes nitrés hydrox
✍ F. Lugadet; A. Deffieux; C. Servens; M. Fontanille 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 490 KB

R6sum6---Parmi les diff~rentes m&hodes de nitration des polybutadi6nes, celle qui utilise la nitromercuration par [HgCl2, NaNO2] est int6ressante d plusieurs points de vue. Dans un premier article, la r6action de nitromercuration est plus particuli6rement examin6e. Les conditions permettant de limit

Polybutadiènes hydroxytéléchéliques, 2 M
✍ Camberlin, Yves ;Pascault, Jean Pierre ;Pham, Quang Tho 📂 Article 📅 1979 🏛 Wiley (John Wiley & Sons) ⚖ 553 KB

## Abstract The examination, by ^1^H NMR, of anionic hydroxytelechelic polybutadienes in conjunction with accurately measured M~n~ values allows the simultaneous determination of the number average functionality and the identification of the nature of the chain ends bearing the functional groups. T