Supramolecular controlled pseudo-LCST effects of cyclodextrin-complexed poly(ionic liquids)

被引：95

作者：

Amajjahe, Sadik ^{[1
]}

Ritter, Helmut ^{[1
]}

机构：

[1] Univ Dusseldorf, Dept Preparat Polymer Chem, Inst Organ Chem & Macromol Chem 2, D-40225 Dusseldorf, Germany

来源：

MACROMOLECULES | 2008年 / 41卷 / 09期

关键词：

D O I：

10.1021/ma702593s

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We investigated the complexation of monomeric 1-butyl-3-vinylimidazolium bis(trifluoromethylsulfonyl)imide ([bvim][Tf2N]) with different cyclodextrins (CDs) in water. Furthermore, we discovered that the poly([bvim][Tf2N]) 1 showed a pseudo-LCST (lower critical solution temperature) effect in the presence of CD. It was shown that the CD ring complexates only the polymer anion and slips off at higher temperature where the poly(ionic liquid) becomes insoluble in water. We were encouraged to prove this effect by turbidity measurements, microcalorimetric titrations, dynamic light scattering, and enzymatic scission of the CD.

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页码：3250 / 3253

页数：4

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