Conductive Composites of Polyurethane Resins and Ionic Liquids

Berns, Belinda; Deligöz, Hüseyin; Tieke, Bernd; Kremer, Friedrich

doi:10.1002/mame.200700405

Cited by 20 publications

(11 citation statements)

References 35 publications

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“…The first chemical ion gels were demonstrated by direct polymerization of vinyl monomers in imidazolium and pyridinium cation-based ionic liquids . Chemical polymer networks can also be prepared by covalently linking telechelic polymers and molecular cross-linkers. − On the other hand, physical gels were fabricated based on ABA and ABC triblock copolymers consisting of component blocks that are soluble and insoluble in the ionic liquid of interest. , Mechanically free-standing physical gels using random copolymer host were also reported. − …”

Section: Introductionmentioning

confidence: 99%

Physically Cross-Linked Homopolymer Ion Gels for High Performance Electrolyte-Gated Transistors

Yang¹,

Kwon²,

Lee³

et al. 2017

ACS Appl. Mater. Interfaces

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A new type of physically cross-linked solid polymer electrolyte was demonstrated by using a poly(vinylidene fluoride) (PVDF) homopolymer in a room-temperature ionic liquid. The physical origins of gelation, specific capacitance, ionic conductivity, mechanical property, and capacitive charge modulation in organic thin-film electrochemical transistors were investigated systematically. Gelation occurs through bridging phase-separated homopolymer crystals by polymer chains in the composite electrolyte, thereby forming a rubbery network. The resulting homopolymer ion gels are able to accommodate both outstanding electrical (ionically conductive and capacitive) and mechanical (flexible and free-standing) characteristics of the component ionic liquid and the structuring polymer, respectively. These ion gels were successfully applied to organic thin-film transistors as high-capacitance gate dielectrics. Therefore, these results provide an effective route to generate a highly conductive rubbery polymer electrolyte that can be used in widespread electronic and electrochemical devices.

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Section: Introductionmentioning

confidence: 99%

Physically Cross-Linked Homopolymer Ion Gels for High Performance Electrolyte-Gated Transistors

Yang¹,

Kwon²,

Lee³

et al. 2017

ACS Appl. Mater. Interfaces

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“…11 Besides ILs are considered very promising external modifiers for various thermoplastic polymers and can act as ion conducting electrolytes, plasticizers, antistatic agents, flame-retardants, lubricants etc. [11][12][13][14][15][16] ILs have numerous advantages such as extremely low vapour pressure, high thermal stability, ionic conductivity, non-flammability, low toxicity etc. 12 The antimicrobial properties of water soluble ILs based on alkyl-substituted imidazolium cation have been already reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…[11][12][13][14][15][16] ILs have numerous advantages such as extremely low vapour pressure, high thermal stability, ionic conductivity, non-flammability, low toxicity etc. 12 The antimicrobial properties of water soluble ILs based on alkyl-substituted imidazolium cation have been already reported in the literature.…”

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confidence: 99%

Antimicrobial properties and thermal stability of polycarbonate modified with 1‐alkyl‐3‐methylimidazolium tetrafluoroborate ionic liquids

Rogalsky

Fatyeyeva

Lyoshina

et al. 2013

J of Applied Polymer Sci

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Four water immiscible ionic liquids (ILs): 1-hexyl-3-methylimidazolium tetrafluoroborate, 1-heptyl-3-methylimidazolium tetrafluoroborate, 1-octyl-3-methylimidazolium tetrafluoroborate and 1-dodecyl-3-methylimidazolium tetrafluoroborate have been synthesized. Polycarbonate (PC) films containing ILs were prepared by solvent casting from methylene chloride solutions. Scanning electron microscopy measurements showed the high homogeneity of PC/IL films with the IL content up to 4 wt %. The tendency to IL aggregation was observed for polymeric films with higher IL content (5%). PC/IL composites were found to have the reduced thermal decomposition temperature under both an air and a nitrogen atmosphere in comparison with the neat PC. The effect of IL content on the antimicrobial activity of PC films against Escherichia coli bacteria was studied. Pronounced antimicrobial efficacy was revealed for PC/IL films for all studied ILs starting from 3 wt % of IL.

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“…These demonstrate that the ILs in PU could play a role as internal plasticizer [29,30]. The tensile strength of PUs with 5.96 wt% IL-PBA still approaches 14 MPa, which meets the corresponding tensile strength requirement of PUs materials.…”

Section: Mechanical Properties and Surface Morphology Analysismentioning

confidence: 74%

Synthesis and characterization of permanently antistatic polyurethanes containing ionic liquids

Zhang

et al. 2016

Polym Eng Sci

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An in situ embed ionic liquid method is designed and employed in thermoplastic polyurethanes (PUs). Unlike the traditional physically incorporated antistatic polymers where conductive fillers do not firmly combined with the matrix. This permanently antistatic PUs are successfully synthesized by using a novel polyester diol bonded with ionic liquids (ILs), which are obtained by an esterification. The ILs and novel polyester polyol are successfully synthesized and subsequently characterized by Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance spectrum ( 1 H NMR), respectively. The effects of ILs content, temperature, and relative humidity (RH) on the surface resistivity of PUs are studied by surface resistivity tests. It is found that the surface resistivity of PUs dramatically decreases with the increment of ILs and are insensitive to surrounding environment. The surface resistivity of PUs with 5.96 wt% ILs reaches 10 10 X cm 22 order of magnitude. The crystalline properties, thermal decomposition behaviors and mechanical properties of synthesized PUs are investigated by X-ray diffraction (XRD), thermal gravimetric analysis (TGA) and tensile test respectively. The crystallinity of PUs with ILs is lower than that of pure PUs. Moreover, we also investigate the effect of ILs on the surface morphology of the PUs. POLYM.ENG. SCI., 56:629-635,

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Conductive Composites of Polyurethane Resins and Ionic Liquids

Cited by 20 publications

References 35 publications

Physically Cross-Linked Homopolymer Ion Gels for High Performance Electrolyte-Gated Transistors

Physically Cross-Linked Homopolymer Ion Gels for High Performance Electrolyte-Gated Transistors

Antimicrobial properties and thermal stability of polycarbonate modified with 1‐alkyl‐3‐methylimidazolium tetrafluoroborate ionic liquids

Synthesis and characterization of permanently antistatic polyurethanes containing ionic liquids

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