Enantiodiscrimination and enantioseparation are two highly important processes in chemistry, often performed by using NMR spectroscopy and chromatography. For a better understanding of the mechanistic details, the same system should be studied by both methods. In addition, isotropic and anisotropic NMR parameters should be obtained, the latter using alignment media so that residual dipolar coup...

We fabricate thermo-responsive polymer microgels by combining microfluidic pre-gel emulsification with polymer-analogous gelation. This separates the microgel formation from the polymer synthesis; it combines highly controlled microfluidic templating with the great flexibility of preparative polymer chemistry, allowing each to be controlled independently. We produce monodisperse pre-gel droplet...

Silver nanoparticle-containing silica sol–gel coatings were synthesised using tetraethylorthosilicate (TEOS), HNO3 and AgNO3 as the main precursors and 3-(2-aminoethylamino)propyl trimethoxysilane (DIAMO) as a stabiliser. The stability and the barrier properties of the coatings were studied by means of UV/Vis spectroscopy, FTIR reflection absorption spectroscopy (IRRAS), spectroscopic Ellipsome...

In this scientific research, magnesium oxide (MgO) nanoparticles were synthesized from magnesium nitrate and ammonium solutions via microwave@sol-gel process. The structure and the morphology of the synthesized nanoparticles has been identified and characterized by X-ray diffraction (XRD), N2-BET (Brunauer-Emmett-Tell), scanning electron microscopy (SEM) and fourier transform infrared (FTIR) te...

In this scientific research, magnesium oxide (MgO) nanoparticles were synthesized from magnesium nitrate and ammonium solutions via microwave@sol-gel process. The structure and the morphology of the synthesized nanoparticles has been identified and characterized by X-ray diffraction (XRD), N2-BET (Brunauer-Emmett-Tell), scanning electron microscopy (SEM) and fourier transform infrared (FTIR) te...

weight, polydispersity, and spectroscopic properties of aquatic humic substances. Environmental Science and Technology 28: 1853. Conte P and Piccolo A (1999) Conformational arrangement of dissolved humic substances. InSuence of solution composition on association of humic molecules. Environmental Science and Technology 33: 1682. Davies G andGhabbour EA (1999) Understanding life after death. Che...

Sol-gel derived GeO2-doped silica thin films (x)GeO2 :(12x)SiO2 with x 5 5 to 40 mol % were studied for heat-treatments from 500 to 1000°C. In the conventional single component sol-gel process, temperature is the process parameter that controls the porosity of the film. However, our results revealed that by varying Ge-doping, the film porosity, as determined by spectroscopic ellipsometry, can b...

Metal Oxide Semiconductor, MOS, solar cells of low cost and stable unit proficiency was established. Solar with sol gel SiO2 deposited by spin coating technique were discussed. The layer is prepared via greener methodology at optimum economic impact as promising sustainable source energy. I–V characteristic the sample cell different time investigated. Photovoltaic performance optical properties...

The objective of this study is to investigate the ability thermoplastic vulcanizates (TPVs) (materials based on PP/EPDM blend) foam under CO 2 batch conditions. EPDM phase, which dispersed into PP was dynamically crosslinked either by a phenolic resin (Resol) or radical peroxide (dicumyl peroxide). results show an influence crosslinking chemistry extensional viscosity TPV. Regarding chemistry, ...