Topic
Thermogravimetric analysis
About: Thermogravimetric analysis is a research topic. Over the lifetime, 37248 publications have been published within this topic receiving 862144 citations. The topic is also known as: thermal gravimetric analysis & TGA.
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TL;DR: In this paper, three different aromatic amine-based polybenzoxazines are subjected to thermal decomposition in a thermogravimetric analyzer and the degradation products, which are volatile compounds evaporating out of the furnace as gases, are trapped and analyzed further by a gas chromatograph coupled with a mass selective detector.
160 citations
TL;DR: In this paper, a series of starch and amylose esters with different degrees of substitution and side-chain length were prepared and studied, and the resulting esters were characterized by elemental analysis, 1 H nuclear magnetic resonance ( 1 H-NMR), Fourier transform infrared (FTIR), differential scan- ning (DSC), thermogravimetric analysis (TGA), contact angle, and water uptake mea- surements.
Abstract: A series of starch and amylose esters with different degrees of substitution and side-chain length were prepared and studied. The esters were prepared by acyla- tion of the polysaccharide with the appropriate acid chlorides, such as octanoic, dode- canoic, and octadecanoic. The degrees of substitution were 0.54, 1.8, and 2.7. After preparation, the resulting esters were characterized by elemental analysis, 1 H nuclear magnetic resonance ( 1 H-NMR), Fourier transform infrared (FTIR), differential scan- ning (DSC), thermogravimetric analysis (TGA), contact angle, and water uptake mea- surements. Their mechanical properties and, in particular, the tensile strength and elongation at break depend on the side-chain length and on the degree of substitution. The extent of their biodegradability, after exposure to activated sludge, was assessed by weight loss measurements and scanning electron microscopy (SEM). It was found that these new materials are biodegradable, and the biodegradation rate decreases with increasing degree of esterification. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 1440 -1451, 1999
160 citations
TL;DR: In this paper, amorphous iron particles were coated by various carboxylic acids and their physical properties (differential scanning calorimetry, thermogravimetric analysis, temperature-programmed desorption, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopic, and magnetism) were measured.
Abstract: Nanophased amorphous iron particles were coated by various carboxylic acids and their physical properties (differential scanning calorimetry, thermogravimetric analysis, temperature-programmed desorption, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and magnetism) were measured. The various properties were measured as a function of the alkyl chain length. The desorption pattern at 400 °C revealed a keto derivative.
160 citations
TL;DR: In this article, the long-term thermal stability of imidazolium-based ionic liquids is addressed, and it is found that potentiometric titration is a precise, low-cost and quick analytical method to assess the quality changes occurring during the thermal aging of ionic liquid.
160 citations
TL;DR: Glycerol-plasticized pea starch/graphene oxide (PS/GO-n) biocomposite films with different loading levels of graphene oxide (GO) were prepared by solution casting method as discussed by the authors.
160 citations