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Cationic Polymerization of 3-Ethyl-3-hydroxymethyloxetane in an Ionic Liquid

✍ Scribed by Tadeusz Biedroń; Melania Bednarek; Przemysław Kubisa

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
97 KB
Volume
25
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Summary: Cationic ring‐opening polymerization of 3‐ethyl‐3‐hydroxymethyloxetane (EOX) in a neutral ionic liquid (1‐butyl‐3‐methylimidazolium tetrafluoroborate, [bmim][BF~4~]) leading to a multihydroxyl, branched polyether proceeds readily to nearly quantitative conversion. Because of the relatively high polarity of ionic liquids, intermolecular hydrogen bonding leading to the formation of aggregates is reduced considerably. On the other hand, intramolecular hydrogen bonding facilitating intramolecular chain transfer is not significantly affected and the molecular weights of polymers are in the same range as those obtained in bulk polymerization or polymerization in organic solvents.

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Electrochemistry of tin in the 1-ethyl-3
Electrochemistry of tin in the 1-ethyl-3-methylimidazolium dicyanamide room temperature ionic liquid
✍ Tin-Iao Leong; Yi-Ting Hsieh; I-Wen Sun 📂 Article 📅 2011 🏛 Elsevier Science 🌐 English ⚖ 570 KB

The electrochemistry of Sn(II) was studied in the room temperature ionic liquid 1-ethyl-3methylimidazolium dicyanamide (EMI-DCA) on a glassy carbon (GC) and a polycrystalline Pt electrode at 40 • C. The Sn(II) species was introduced into the ionic liquid by either dissolution of SnCl 2 or anodizing