Synthesis, characterization and properties of geminal imidazolium ionic liquids

Ding, Yunsheng; Zha, Min; Zhang, Jun; Wang, Seng-Shan

doi:10.1016/j.colsurfa.2006.10.063

Cited by 155 publications

(100 citation statements)

References 15 publications

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“…1,2 Room temperature ionic liquids with dipositive cations are rare, hence their physical behaviour is not well understood. [3][4][5][6][7][8][9] Tripositive cations are even scarcer. [10][11][12] The interest in dicationic ionic liquids is largely due to their high thermal stability, higher than that normally characterising the corresponding monocationic ionic liquids.…”

Section: Introductionmentioning

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: Introductionmentioning

confidence: 99%

Solution and thermal behaviour of novel dicationic imidazolium ionic liquids

et al. 2013

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“…Catalysts preparation 1-Buthyl-3-methylimidazolium hexafluorophosphate [Bmim] [PF 6 ] was prepared according to the literature (Hao and Zemb 2007;Ding et al 2007). Nano-structure Pd/TiO 2 catalysts loaded with various palladium amounts on TiO 2 were prepared by ionic liquid method with tetrabutyltitanate as a precursor.…”

Section: Methodsmentioning

confidence: 99%

Catalytic synthesis of 2-(N-benzyl-N-phenylamino) phenol by mesoporous Pd-doped TiO2: an environmentally benign approach

Wang

Yang

et al. 2013

Appl Nanosci

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A facile and environmentally route for catalytic Synthesis of 2-(N-benzyl-N-phenylamino) phenol under UV irradiation conditions has been developed in the presence of a catalytic amount of mesoporous Pd-doped TiO 2 (Pd/TiO 2 ) based on a ionic liquid process to fabricate. The particles were characterized with XRD, TEM and XPS. The FT-IR and HNMR spectra confirmed the expected function groups and the structure of 2-(N-benzyl-N-phenylamino) phenol synthesized.

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“…C 14 MIM Á 2Br and C 14 MIM-4-C 14 MIM Á2Br were synthesized according to the literature. [15] Microemulsion Polymerization of MMA Dilatometry was used to study the kinetics of microemulsion polymerization. The dilatometer consisted of a 17-mL Erlenmeyer flask and a 20 cm long capillary with diameter of 2 mm.…”

Section: Introductionmentioning

confidence: 99%

“…It shows excellent physical, chemical properties and potential application as emulsifier. [15][16] In order to obtain nano-or micro-sized latexes containing higher polymer contents and lower surfactant dosage, the highperformance surfactant should be developed without the demand of co-surfactant. Gemini IBILs have a potential to be employed as such kind of surfactant in microemulsion polymerization since they have special structures and properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of two Kinds of Imidazolium Ionic Liquids on the Microemulsion Polymerization of Methyl methylacrylate

Ding

et al. 2010

Macromolecular Symposia

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Summary: In this paper, the microemulsion polymerization of methyl methylacrylate (MMA) was carried out with single and gemini ionic liquids as emulsifier including 1-Ntetradecyl-3-methylimidazolium bromide (C 14 MIM Á Br) and 1, 4-Bis (3-tetradecylimidazolium-1-yl) butane bromide (C 14 MIM-4-C 14 MIM Á 2Br) respectively, and they were all have typical microemulsion polymerization characters of MMA, but the process of polymerization directly depends on the structure of the imidazolium ionic liquids. The structure and concentration of ionic liquids have effects on the resulted latex particle sizes of PMMA, and much smaller size latexes of PMMA could be gotten with C 14 MIM Á Br as emulsifier than C 14 MIM-4-C 14 MIM Á 2Br in polymerization. On the other hand, the structure of emulsifier has the effects on the molecular weight (MW) and molecular weight distribution (MWD) of PMMA, so the resulting PMMA prepared from microemulsion polymerization with C 14 MIM Á Br as emulsifier has higher MW but narrower MWD than that of PMMA with the same dosage of C 14 MIM-4-C 14 MIM Á 2Br as emulsifier.

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Synthesis, characterization and properties of geminal imidazolium ionic liquids

Cited by 155 publications

References 15 publications

Solution and thermal behaviour of novel dicationic imidazolium ionic liquids

Solution and thermal behaviour of novel dicationic imidazolium ionic liquids

Catalytic synthesis of 2-(N-benzyl-N-phenylamino) phenol by mesoporous Pd-doped TiO2: an environmentally benign approach

Effect of two Kinds of Imidazolium Ionic Liquids on the Microemulsion Polymerization of Methyl methylacrylate

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