Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Adonilson A. Freitas"'
Autor:
Cátia S. Nunes, Natália C. Homem, Caroline Apoloni Cionek, Teresa Amorim, Adonilson A. Freitas, Edvani Curti Muniz
Publikováno v:
Textile Research Journal. 91:51-61
The disinfection of swimming pool water is vital to maintain water quality. The chemicals used in this practice can damage the fabrics of bathing suits and shorten the shelf life of the textile substrate. The degradation of polyester, a polymer that
Publikováno v:
Journal of Molecular Liquids. 190:146-150
The existence or not of miscibility of PCP and NR was investigated by dilute solution viscometry (DSV) in an Ubbelohde capillary viscometer and scanning electronic microscopy (SEM) techniques. The blends of these polymers were investigated by analysi
Autor:
Michael J. V. da Silva, Adley F. Rubira, Fernanda A. Rosa, D. C. da Silva, Cátia S. Nunes, Adonilson R. Freitas, Edvani C. Muniz
Publikováno v:
RSC Adv.. 4:20308-20316
Poly(ethylene terephthalate) (PET) was successfully depolymerised under supercritical ethanol. Robust conversion of 98 wt% from PET to diethylterephthalate (DET) was obtained by adding [Bmim][BF4], as catalyst, accompanied by reduction of depolymeriz
Autor:
Antonio G.B. Pereira, Adriano Luciano Cardozo, Eduardo Radovanovic, Edvani C. Muniz, Silvia Luciana Fávaro, Adonilson R. Freitas, O. Baron, Emerson M. Girotto, T. A. Ganzerli
Publikováno v:
The Journal of Supercritical Fluids. 75:138-143
Different properties, such as barriers to gas, light, flavor and water vapor, as well as flexibility, are necessary for the production of food packages. These properties may be obtained by combining different polymers. In spite of the advantages achi
Publikováno v:
Journal of Molecular Liquids. 157:146-150
The degradation of polychloroprene (PCP) by photo-Fenton process using FeCl3·6H2O and solvents with different properties was studied by measuring the efflux time in an Ubbelohde capillary viscometer. The solvents benzene, toluene, chloroform, and TH
Publikováno v:
Journal of Polymers and the Environment. 18:668-673
In the present work the photo-degradation of polychloroprene (PCP) in toluene solution catalyzed by FeCl3·6H2O and polychromatic light was investigated based on FTIR and 13C NMR spectroscopies, on conductivity measurements and DSC technique. The ban
Autor:
Adonilson R. Freitas, Márcia R. Cordeiro, Emerson M. Girotto, Luciana Gaffo, Valtencir Zucolotto, W. C. Moreira
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Phthalocyanine compounds have been widely investigated as candidate materials for technological applications, which is mainly due to their thermal stability and possibility of processing in the form of thin films. In most applications, the controlled
Publikováno v:
Polymer Degradation and Stability. 93:601-607
The effect of light and FeCl3·6H2O on polychloroprene (PCP)/natural rubber (NR) blends in toluene solution were investigated to demonstrate the influence of each polymer on the degradation process. The contributions of total polymer concentration (C
Publikováno v:
Polymer Degradation and Stability. 87:425-432
The influence of iron(III)-chloride-6-hydrate, FeCl3� 6H2O on the photodegradation of polychloroprene under different conditions has been investigated. The effects of polymer concentration (Cp), temperature (T ), and polychromatic light exposure (L
Autor:
Michael J. V. da Silva, Fernanda A. Rosa, Edvani C. Muniz, Paulo R. R. De Souza, Adonilson R. Freitas, Cátia S. Nunes
Publikováno v:
Catalysts; Volume 7; Issue 2; Pages: 43
Supercritical ethanolysis (scEtOH) is a method that allows the production of monomers, e.g., diethyl terephthalate (DET), from Polyethylene terephthalate PET chemical recycling. The use of the ionic liquids (ILs) such as 1-n-butyl-3-methylimidazolium