Electron spin resonance studies differential scanning calorimetry

The techniques most commonly used in thermo-oxidative studies on polymers are mainly based on thermal analysis methods such as thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) and on pyrolysis-gas chromatographic studies (particularly if they are linked to complimentary techniques such as mass spectrometry or infrared spectroscopy). Other techniques that have been used to a much lesser extent include chemiluminescence analysis, nuclear magnetic resonance (NMR) spectroscopy, electron spin resonance, and positron annihilation lifetime mass spectrometry. 

The principle techniques used in thermooxidalive studies are based on thermal analysis methods such as thermogravimetric analysis and differential scanning calorimetry and on methcxds based on polymer pyrolysis followed by gas chromatography and mass spearometry and/or infrared spectroscopy of the volatiles produced. Other techniques which have have been include nuclear magnetic spectroscopy, electron spin resonance spectroscopy and meilxids based on chemiluminescence and positron annihilation lifetime mass spectrometry. 

The hydrocarbon chains of the lipid bilayer are in a liquid-like state as evidenced by X-ray diffraction, electron spin resonance spectroscopy, and differential scanning calorimetry studies. A quantitative characterization of the hydrocarbon chain order in lipid bilayers by means of H-NMR became possible by selectively deuterating both fatty acyl chains in a lipid molecule. Measurement of the deuterium quadrupole splittings, Avq, allowed calculation of the order parameter of the C—D bond vector at each labeled carbon atom. The variation of the order parameter ScdI with the position of the labeled carbon atom in the membrane is the so-called order profile. An... 

Polymer chains are isolated from their neighbors when they are included in narrow inclusion channels. The formation of a polymer inclusion complex provides an opportunity to study the conformation and mobility of isolated polymer chains. These studies have been carried out using nuclear magnetic resonance, differential scanning calorimetry (DSC), and electron spin resonance ([ H]-NMR, [ C]-NMR, DSC, and ESR) spectroscopies. 

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