From differential scanning calorimetric

R)- and S- CHT A [Tf2N]" are liquid at room temperature, and results from differential scanning calorimetric (DSC) measurements indicate that they have glass transition temperature of -58.4°C. Results from thermal... 

Fracture-Energy Testing. Table I gives the recipes and the fracture energies measured under slow and fast rates of test, for the elastomer-modified VER and for ETBN additions to the elastomer-modified VER. Also given are the total amounts of reactive liquid rubber, from both ETBN addition and CTBN reacted directly into the VER, for each recipe. For reference, the unmodified VER has a slow GIc. of 0.11 kj/m2. Finally, the Tg obtained from differential scanning calorimetric measurements is given for each recipe. 

From differential scanning calorimetric measurements a marked cooling-heating cycle hysteresis has been observed, showing that water encapsulated in AOT reversed micelles is only partially freezable and that the freezable fraction displays marked supercooling behavior as a consequence of the very small size of the micellar core. The nonfreezable fraction has been identified as the water hydrating the AOT ionic heads [56,57]. 

Evidence of the reduction in the crystallinity of AA(H) [or Varisoft-510], by Aim comes from differential scanning calorimetric analysis (DSC) of AA(H)... 

Figure 9 Differential scanning calorimetric (DSC) curve showing the phase transitions observed on heating the amorphous form (glass) of polyethylene terephthalate. (Reproduced with permission from Ref. 38.)...

Figure 10 Oscillating differential scanning calorimetric (ODSC) curves showing the separation of the glass transition (reversible, i.e., thermodynamic component) and enthal-pic relaxation (irreversible, i.e., kinetic component) which overlap in the full DSC scan. (Reprinted with permission from Ref. 38.)... 

Fig. 1.45. Schema of a differential scanning calorimetric (DSC) apparatus. Gerate DSC 821 . Temperature range with LN2 cooling -150 °C to 500 °C accuracy of temperature 0.2 °C resolution 0.7 gW in the measuring range of +/-350 mW cooling rate from +100 °C to -100 °C approx. 13 °C/min size of sample, several mg to 200 mg.

J. H. Flynn. Thermodynamic Properties from Differential Scanning Calorimetry by Calorimetric Methods. Thermochim. Acta 1974, 8, 69-81. 

Figure 8-9 Differential scanning calorimetric curves for l-stearoyl-2-linoleoyl-sw-glycerol. (A) Crystals of the compound grown from a hexane solution were heated from -10° to 35°C at a rate of 5°C per minute and the heat absorbed by the sample was recorded. (B) The molten lipid was cooled from 35° to -10°C at a rate of 5° per minute and the heat evolved was recorded as the lipid crystallized in the a phase and was then transformed through two sub-a phases. (C) The solid was reheated. From Di and Small.87 Courtesy of Donald M. Small.

Provenzano, M. R., Ouatmane, A., HaAdi, M., and Senesi, N. (2000). Differential scanning calorimetric analysis of composted materials from different sources. J. Therm. Anal. Calorim. 61(2), 607-614. 

Abstract. Gas interstitial fullerenes was produced by precipitation of C6o from the solution in 1,2 dichlorobenzene saturated by O2, N2, or Ar. The structure and chemical composition of the fullerenes was characterized by X-ray powder diffraction analysis, FTIR spectroscopy, thermal desorption mass spectrometry, differential scanning calorimetric and chemical analysis. The images of fullerene microcrystals were analyzed by SEM equipped with energy dispersive X-ray spectroscopy (EDS) attachment. Thermal desorption mass spectroscopy and EDS analysis confirmed the presence of Ar, N and O in C60 specimens. From the diffraction data it has been shown that fullerite with face centered cubic lattice was formed as a result of precipitation. The lattice parameter a was found to enhance for precipitated fullerene microcrystals (a = 14.19 -14.25 A) in comparison with that for pure C60 (a = 14.15 A) due to the occupation of octahedral interstices by nitrogen, oxygen or argon molecules. The phase transition temperature and enthalpy of transition for the precipitated fullerene microcrystals decreased in comparison with pure Cgo- Low temperature wet procedure described in the paper opens a new possibility to incorporate chemically active molecules like oxygen to the fullerene microcrystals. 

During investigation of a new material it is unlikely that any single thermal analysis technique will provide all the information required to understand its behavior. Complementary information is usually needed, which may be from another simultaneous thermal technique such as thermogravimetric-differential scanning calorimetric-mass spectrometry (TG-DSC-MS), gas chromatography (TG-GC, or DSG-GG), or spectroscopic methods such as IR spectroscopy or X-ray photoelectron spectroscopy (XPS). 

Figure 3 Comparison of a differential scanning calorimetric scan of fully hydrated DPPC multibilayer vesicles (continuous trace) and a dilatometric scan of the same vesicles (circles). The figure is taken from Reference 22.

TG-DSC (ThermoGravimetric-Differential Scanning Calorimetric) experiments of pure dried powders were performed from 25 to 900°C in N2 and air flow (0.40-1.50 ml/sec) at 10°C/min with a TG-DSC 111 (Setaram). 

FIGURE 12.15 Differential scanning calorimetric scans of polyacrylonitrile homopol5mer in nitrogen atmosphere. Exothermic peak arises from the cyclic degradation reaction. 

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