Proton conducting polymers containing 1<i>H</i>‐1,2,3‐triazole moieties

Martwiset, Surangkhana; Yavuzçetin, Özgür; Thorn, Michael; Versek, Craig; Tuominen, Mark; Coughlin, E. Bryan

doi:10.1002/pola.23141

Cited by 34 publications

(29 citation statements)

References 24 publications

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“…The proton conductivities of polymer 8 were lower than the values previously reported, 16,17 which could be attributed to the higher T g and lower triazole content of polymer 8. The introduction of more than one triazole per repeat unit did not result in an increase in conductivity because there was an accompanying increase in T g ; 16 thus, two methods are suggested to improve the proton conductivity. The first one is the reduction of T g by the incorporation of poly(ethylene oxide) (PEO) blocks to prepare copolymers.…”

Section: Polyelectrolytes Containing Pfcb and Triazole Units Y Zhu Et Alcontrasting

confidence: 51%

“…These polymers were stable up to B290 1C, which is much higher than that of previously reported polymers. 16,17 Proton conductivity. The proton conductivity of polymer 8 was measured from 40 to 200 1C under anhydrous conditions using impedance spectroscopy.…”

Section: Polyelectrolytes Containing Pfcb and Triazole Units Y Zhu Et Almentioning

confidence: 99%

“…Recently, nitrogencontaining heterocyclic compounds, such as imidazole, pyrazole and benzimidazole, have been suggested as proton solvents for proton exchange membrane fuel cells, and they may also be covalently tethered to some suitable polymers to prepare fully polymeric materials. [9][10][11][12][13][14][15][16][17][18] Liu et al 19 suggested that 1H-1,2,3-triazole has adequate electrochemical stability for fuel cell applications, and the 1H-1,2,3-triazole groups immobilized on a polymer backbone may open up new avenues in the design of polyelectrolytes. To date, several polymeric systems with tethered 1H-1,2,3-triazole moieties have been evaluated as polyelectrolytes.…”

Section: Introductionmentioning

confidence: 99%

“…To date, several polymeric systems with tethered 1H-1,2,3-triazole moieties have been evaluated as polyelectrolytes. [13][14][15][16][17] However, most of these polymers derived from polyacrylate or polyethylene may have issues related to their electrochemical or dimensional stability for medium temperature fuel cells. During the past decade, partially fluorinated polymers containing perfluorocyclobutane (PFCB) rings have been developed.…”

Section: Introductionmentioning

confidence: 99%

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Novel polyelectrolytes containing perfluorocyclobutane and triazole units: synthesis, characterization and properties

Zhu

Chen

2010

Polym J

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A new class of aryl trifluorovinyl ether monomers were designed and synthesized, and novel fluorinated polymers containing perfluorocyclobutane and 1H-1,2,3-triazole units were prepared from these monomers. These polymers were characterized by nuclear magnetic resonance spectroscopy, thermo-gravimetric analysis and differential scanning calorimetry. The temperatures of 5% weight loss of the polymers under nitrogen were up to B290 1C, and the glass transition temperatures of the polymers were in the range of 79-110 1C. These new polymers showed good solubility in common organic solvents such as dimethyl sulfoxide and N,N-dimethylacetamide. In addition, the proton conductivity of the polymers was measured under anhydrous conditions using impedance spectroscopy, and a maximum conductivity of 2.85 lS cm À1 was obtained at 200 1C.

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Section: Polyelectrolytes Containing Pfcb and Triazole Units Y Zhu Et Alcontrasting

confidence: 51%

Section: Polyelectrolytes Containing Pfcb and Triazole Units Y Zhu Et Almentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Novel polyelectrolytes containing perfluorocyclobutane and triazole units: synthesis, characterization and properties

Zhu

Chen

2010

Polym J

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“…[27][28][29] Their purity was confirmed by comparing the 13 C-NMR spectra to data published in the literature for the non-polymeric compounds and by 1 H-NMR for the copolymers. Experimental details are described in the supplemental information.…”

Section: Polyionic Liquid Synthesismentioning

confidence: 99%

Simple, Robust, and Plasticizer-Free Iodide-Selective Sensor Based on Copolymerized Triazole-Based Ionic Liquid

Mendecki

Chen

Callan³

et al. 2016

Anal. Chem.

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Novel solid contact iodide selective electrodes based on covalently attached 1,2,3 triazole ionic liquid (IL) were prepared and investigated in this study. Triazole-based IL moieties were synthesized using click chemistry and were further copolymerized with lauryl methacrylate via a simple one step free radical polymerization to produce a "self-plasticized" copolymer. The mechanical properties of the copolymer are suitable for the fabrication of plasticizer-free ion-selective membrane electrodes. We demonstrate that covalently attached IL moieties provide adequate functionality to the ion selective membrane thus achieving a very simple, one component sensing membrane. We also demonstrate the presence of iodide as the counter-ion in the triazole moiety has direct influence on membrane's functionality. Potentiometric experiments revealed that each electrode displays high selectivity towards iodide anions over a number of inorganic anions. Moreover the inherent presence of the iodide in the membrane reduces the need for conditioning. The non-conditioned electrodes show strikingly similar response characteristics compared to the conditioned ones. The electrodes exhibited a near Nernstian behavior with a slope of -56.1 mV per decade across large concentration range with lower detection limits found at approximately 6.3x10 -8 M or 8 ppb . These all-solid state sensors were utilized for the selective potentiometric determination of iodide ions in artificial urine samples in the nanomolar concentration range.Potentiometric chemical sensors, with primary responses based on extraction and molecular recognition processes are a wellstudied and understood class of sensing devices. 1 Ion selective electrodes (ISEs) have been already widely used in a variety of fields such as clinical analysis, 2 process control 3 and environmental monitoring. 4 Ion selective membranes are typically composed of plasticized polymers, ion exchange salts, and one or more ionophores. Each constituent plays a specific role in the proper functioning of these membrane based ISEs. 5 Spontaneous and non-specific extraction of analyte ions from the sample into the membrane bulk is primarily suppressed due to the highly hydrophobic nature of the polymer backbone. Ideally, polymer matrix should provide a homogenous medium in which all active components can move freely. This strongly resembles the composition of liquid membrane electrodes since their sensing components were simply dissolved in an organic medium. However, the performance of polymer-based membranes can be drastically reduced if such sensors are used for the measurements of ions within more lipophilic environments in biological samples including undiluted whole blood. The cross contamination of chemical sensors coupled with leaching of the sensing components from the ion selective membrane into the sample fundamentally limited the applications of ISEs as a robust analytical tool for long-term trace level analysis. 6 Over the years, a number of approaches have been developed to minim...

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Effects of carboxyl group on the ambient self‐crosslinkable polyacrylate latices

Guo

Liu

Song

et al. 2007

J of Applied Polymer Sci

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Ambient curable carbonyl functional acrylic latices were synthesized by incorporating diacetone acrylamide as functional monomer into acrylic copolymer, adipic acid dihydrazide (ADH) was used as curing agent. In this work acrylic acid (AA) and acrylic acid homopolymer (PAA) were used to facilitate the crosslinking reaction. We found that the properties of latex film were different when use AA and PAA as the source of the carboxyl groups separately. The results from the characterization of carboxyl groups of the latex particles demonstrated that the distribution of the carboxyl group on the latex particle surface is optimal for the crosslinking reaction.

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Proton conducting polymers containing 1H‐1,2,3‐triazole moieties

Cited by 34 publications

References 24 publications

Novel polyelectrolytes containing perfluorocyclobutane and triazole units: synthesis, characterization and properties

Novel polyelectrolytes containing perfluorocyclobutane and triazole units: synthesis, characterization and properties

Simple, Robust, and Plasticizer-Free Iodide-Selective Sensor Based on Copolymerized Triazole-Based Ionic Liquid

Effects of carboxyl group on the ambient self‐crosslinkable polyacrylate latices

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