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UV-Imprint Resists Generated from Polymerizable Ionic Liquids and Titania Nanoparticles

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The making of iLiquids - the chemist's equivalent of the iPhone

Paul Joseph Dyson, Zhaofu Fei

In this viewpoint we discuss the contributions from John S. Wilkes and Michael J. Zaworotko concerning the discovery of stable ionic liquids (ILs) and their accompanying structural studies (J. Chem. Soc., Chem. Commun., 1992, 965) and Robin D. Rogers and J ...

2013

New/Surface-Modified Biocompatible Polymer for ICD Lead Insulation

Rubin Berek Pisarek

The average lifetime of an implanted pacemaker or defibrillator cable (lead) is approximately 10 years. One of the main lead failure mechanisms is deterioration of the insulation, which can be caused by chemical, biological, and mechanical processes. Each ...

EPFL2011

Photocatalytic evaluation of TiO2/nylon systems prepared at different impregnation times

César Pulgarin, Juan Kiwi

TiO2/nylon fabrics were investigated for methanol degradation under UV light irradiation. TiO2 Degussa P-25 was supported on nylon by immersing the nylon in sol-gel TiO2 and silicone. The TiO2 layers on the nylon were explored as a function of the time of ...

Elsevier2011

Stimuli-responsive nanostructured surfaces

Ana Maria Popa

The coupling of stimuli-responsive macromolecules to nanostructured surfaces opens the perspective for the fabrication and integration of "smart" micro- and nano-electro-mechanical systems (MEMS&NEMS) in which the smallest motile unit is the polymeric chai ...

EPFL2009

In bypass graft surgery, surgeons have turned to synthetic materials such as polyethylene terephthalate (Dacron) and expanded polytetrafluoroethylene (ePTFE) when lacking sufficient and suitable arteries or veins for the procedure. However, due to their lo ...

2009

Ionic liquids: Solutions for Electrospray Ionisation Mass Spectrometry

Paul Joseph Dyson

Ionic liquids pose challenges and provide solutions for electrospray ionisation mass spectrometry (ESI-MS). Being inherently charged, they are themselves easy to characterise in both positive- and negative-ion mode by ESI-MS, but the challenge arises when ...

American Chemical Soc, Distribution Office, Dept 225, 1155 16Th St Nw, Washington, Dc 20036 Usa2009

Investigations of Diels-Alder reactions in ionic liquids

Ana Vidis

Room temperature ionic liquids comprise an unique class of solvent composed of organic and inorganic-based ions that are molten under ambient conditions. They are characterised by high solvent polarity and low vapour pressure, and can be tailored to have s ...

EPFL2007

Rationalisation of solvent effects in the diels-alder reaction between cyclopentadiene and methyl acrylate in room temperature ionic liquids

Paul Joseph Dyson, Gabor Laurenczy, Ana Vidis

The Diels-Alder reaction between cyclopentadiene and methyl acrylate in ionic liquids has been studied in detail. The effect of contamination of the ionic liquids by common impurities, viz. sodium and chloride ions, and water, on the selectivity has been i ...

2005

Biphasic chemistry utilising ionic liquids

Paul Joseph Dyson

Biphasic and multiphasic processes have emerged as effective methods to reduce the amount of volatile organic solvents used in the manufacture of chemicals. In this article some of the research conducted in my laboratory in this domain utilizing ionic liqu ...

2005

Synthesis and characterization of ionic liquids incorporating the nitrile functionality

Paul Joseph Dyson, Zhaofu Fei, Dongbin Zhao

A series of imidazolium salts with the nitrile functional group attached to the alkyl side chain, viz. [C(n)CNmim][X] (where C(n)CNmim is the 1-alkylnitrile-3-methylimidazolium cation and C-n = (CH2)(n), n = 1-4; X = Cl, PF6, and BF4) and [C(3)CNdmim][X] ( ...

2004