Consulta: subjectFacets:"Thermogravimetric analysis"
Registros recuperados: 3
Data/hora: 11/06/2024 10:10:57

Investigation of aromatic hydrocarbon inclusion into cyclodextrins by Raman spectroscopy and thermal analysis
Provedor de dados: 5
Autores: Tijunelyte, Inga; Dupont, Nathalie; Milosevic, Irena; Barbey, Carole; Rinnert, Emmanuel; Lidgi-guigui, Nathalie; Guenin, Erwann; De La Chapelle, Marc Lamy.
Among various cavitand molecules, cyclodextrins are extensively studied due to their ability to form host-guest complexes with small hydrophobic molecules. Aiming to explore cyclodextrin implementation on the scopes related to the environmental pollution monitoring or remediation, extensive studies for understanding the cyclodextrin-based host-guest complex formation with selected targeted substances are conducted. In this context, two polycyclic aromatic hydrocarbons, naphthalene and fluoranthene as well as toluene as a member of volatile organic compounds, were studied regarding their ability to encapsulate into cyclodextrin cavities. Synthesised complexes were examined by thermogravimetric analysis combined with Raman spectroscopy. The obtained results...
Tipo: Text
Palavras-chave: Raman spectroscopy; Thermogravimetric analysis; Cyclodextrin; Polyaromatic hydrocarbons; PAH; Host-guest complex.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00417/52845/53907.pdf

Thermal properties of metal-metal bonded Pd(I) complexes supported onto porous Vycor glass
Provedor de dados: 42
Autores: Gimenez,Iara F.; Alves,Oswaldo L.
Thermal behavior of the complexes Pd2(dppm)2Cl2, Pd2(dppm)2(SnCl3)Cl and Pd2(dppm)2(SnCl3)2 (dppm = bis[diphenylphosphino(methane)], ((C6H5)2PCH2P(C6H5)2) in the solid state and immobilized onto porous Vycor glass was studied. Similar decomposition mechanisms were observed for the solid and immobilized complexes, with a small thermal stabilization upon immobilization. The decomposition products were characterized by X-ray diffractometry, Raman and diffuse reflectance infrared spectroscopy, which indicated the presence of a mixture of metallic palladium and oxidized species such as PdO,condensed phosphates, SnO2 and SnP2O7. According to X-ray diffractometry, the decomposition products of the immobilized complexes presented higher amounts of PdO than the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Palladium(I) complex; Porous Vycor glass; Bis[diphenylphosphino(methane)]; Thermogravimetric analysis.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000200004

Dipteryx lacunifera seed oil: characterization and thermal stability
Provedor de dados: 64
Autores: Queiroga Neto,Vicente; Bora,Pushkar Singh; Diniz,Zeomar Nitão; Cavalheiro,José Marcelino Oliveira; Queiroga,Karine Formiga.
The Dipteryx lacunifera Ducke is an oleaginous legume with high oil and protein content that can be used in human nutrition. The specie is a native of the Piauí and Maranhão state in the north east of Brazil. The measure physico-chemical properties of the oil are specific density, refractive index, acid, peroxide, iodine and saponification values of 0.91, 1.4651, 0.60 (% oleic acid), 2.81, 70.80 and about 179, respectively. Gas chromatographic analysis of the oil showed the presence of 20.6% saturated, 65.1% monounsaturated and 14.3% polyunsaturated fatty acids. The saturated fatty acids C6:0, C8:0, C12:0 and C17:0 were present in trace (&lt;0.01%) amounts while the C16:0, C18:0, C20:0, C22:0 and C24:0 were at concentrations of 10.3, 5.4, 3.4, 0.9 and 0.6%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dipteryx lacunifera; Seed kernel oil; Physical-chemical properties; Fatty acids composition; Thermogravimetric analysis.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000600020