Study of Anion Effects on Separation Phenomenon for the Vinyloctylimidazolium Based Ionic Liquid Polymer Stationary Phases in GC

Hsieh, Yu-Nung; Ho, Wen-Yueh; Horng, Richard S.; Huang, Ping-Chih; Hsu, Ching‐Yun; Huang, Haiyang; Kuei, Chun‐Hsiung

doi:10.1365/s10337-007-0334-3

Cited by 42 publications

(13 citation statements)

References 21 publications

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“…[59][60][61][62] In going from mono-to dianions, the thermal stability seems to be affected by both the nature of the charged head and the spacer. Indeed, among dianions, the naphthalenedisulfonate salt 2d shows the highest thermal stability, possibly …”

Section: Tga Measurementsmentioning

confidence: 99%

Solution and thermal behaviour of novel dicationic imidazolium ionic liquids

et al. 2013

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A new class of functionalised dicationic ionic liquids, containing a central cationic unit capped by a basic functionality (imidazole), has been synthesised. These salts have been characterised in isotropic solution using proton and 2D-NMR spectroscopy, and their thermal stability has been studied by DSC and TGA. All these novel salts contain the 1-(1-imidazolylmethyl)-3,5-di{1-(3'-octylimidazolylmethyl)}-benzene cation as a defining structural motif. Salts of both singly and doubly charged anions were prepared and, in particular, the selected monoanions (Br − , [BF 4 ] − , or [NTf 2 ] − ) differ in size, shape and hydrogenbonding ability, whereas the dianions differ in the nature of the spacer, such as 1,4-benzenedicarboxylate, 2,6-naphthalenedicarboxylate, 1,5-and 2,6-naphthalenedisulfonate, 1,4-butanedicarboxylate, and 1,6-hexanedicarboxylate. These ionic liquids exhibit the presence of different conformers in solution, whose distribution is affected by the nature of the anion. The nature of the anion also affects their thermal stability.

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Section: Tga Measurementsmentioning

confidence: 99%

Solution and thermal behaviour of novel dicationic imidazolium ionic liquids

et al. 2013

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“…The IL monomer, 1-vinyl-3-butylimidazolium bromide, was polymerized to form PIL by the free radical polymerization using procedures described elsewhere [26,29]. Briefly, the polymerization was performed in chloroform in the presence of the free radical initiator AIBN to generate PVBIm + Br − .…”

Section: Synthesis Of Pilmentioning

confidence: 99%

“…They have received much research interest in various areas [19] including as biosensors [20], support of catalysts [21] and polymer electrolytes for electrochemical devices [22]. In analytical chemistry, PILs also exhibit unique material properties while largely remain the solvation properties inherent in ILs in solidphase microextraction [23][24][25] and GC stationary phase [26,27].…”

Section: Introductionmentioning

confidence: 99%

Polymeric ionic liquid as a dynamic coating additive for separation of basic proteins by capillary electrophoresis

Han

Wang

et al. 2010

Analytica Chimica Acta

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“…Moreover, the tunability of ILs allows for relatively easy chemical modification of the IL structures, resulting not only in enhanced thermal stability, but tuneable solvation properties and separation selectivity. Currently, the reported modifications include the cation and anion combination [6,7], introduction of desired functional groups to the IL [8,9], development of dicationic and tricationic ILs [10][11][12], as well as polymerization [13][14][15][16]. Therefore, IL structural modifications result in unique solvation properties that have instigated the evaluation of new classes of functionalized ILs that consist of more exotic cation and anion combinations.…”

Section: Introductionmentioning

confidence: 99%

“…The solvation parameter model [17], developed by Abraham and co-workers, has been successfully employed to evaluate the solvation properties for a wide class of ILs [6][7][8][9][10][11][12][13][14][15][16]18]. The solvation parameter model, shown in Eq.…”

Section: Introductionmentioning

confidence: 99%