High-resolution thermogravimetric analysis

Sullivan, E. J., Hunter, D. B., and Bowman, R. S. (1997). Topological and thermal properties of surfactant-modified clinoptilolite studied by tapping-mode atomic force microscopy and high-resolution thermogravimetric analysis. Clays Clay Miner., 45(1), 42-53. 

This project focuses on the development of high-resolution thermogravimetric analysis (HR-TGA) as a rapid, low-cost method for the analysis of biomass composition of shmb willow. The goal is to provide an alternative method for biomass analysis that is faster and... 

High Resolution Thermogravimetric Analysis, TA Leaflet TA-023, TA Instruments Inc., Newcastle, DE, USA. 

A two-step degradation mechanism for pofycaprolactone has been proposed by Persenaire et al. [42], They studied thermal degradation of PCL by high resolution thermogravimetric analysis (TGA) simultaneously coupled with mass spectrometry (MS) arrd Forrrier transform infrared spectrometry (FTIR). Based on evolved gas analysis by both MS and FTIR it was concluded that the first step was a random rupture of polyester chains via cw-elimination reaction which produced H2O, CO2, and 5-hexanoic acid. The second step is an unzipping depolymerization process at the chain ends with hydroxyl end groups to form e-caprolactone (see Fig. 4.2). 

Wang X., Li X., Yan D. High-resolution thermogravimetric analysis of poly(trimethylene terephthalate) with different molecular weights. Polymer Testing 20 (2001)491. 

Thermal stability of hemicelluloses was performed using thermogravimetric analysis (TGA) on a thermal analyzer (TA Instruments High-Resolution Model Q-500). The apparatus was continually flushed with nitrogen. The samples weighed between 10 and 13 mg and were run fiom room temperature to 600 °C at a rate of 10 °C/min. 

We note that, as mentioned in sect. 3.1.3, high-resolution oxygen determination is not valid at X < 6.45, i.e. in the absence of Cu " (formal valence). Samples with lower oxygen content were analyzed by iodometry and thermogravimetric analysis. 

As has been mentioned, evaluation of the thermal performance of the surface-modified filler, as well as of composite materials, is important, because it affects the properties of the final nanocomposites significantly. High-resolution (Hi-Res) thermogravimetric analysis (TGA), in which the heating rate is coupled to the mass loss, that is, the sample temperature is not raised until the mass loss at a particular temperature is completed, is the method most commonly used for analysis of the thermal performance of materials. 

Dan and co-workers [8] studied the structures and thermal and thermo-oxidative stabilities of the gel and chlorinated natural rubber from latex. The polymers were analysed by chemical analysis, high-resolution pyrolysis-gas chromatography-mass spectroscopy (HR-Py-GC-MS) coupled with Fourier-transform infrared spectroscopy, and thermal analysis techniques [dynamic thermal analysis and thermogravimetric analysis (TGA)]. 

Ren and co-workers [30] investigated the characterisation of this fluorine containing thermally resistant polymer using high resolution Curie point Py-GC-MS, thermogravimetric analysis and Fourier transform IR (FT-IR) spectroscopy. 

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