Adonilson R. Freitas
Universidade Estadual de Maringá
11 Papers
9 Citations
Adonilson R. Freitas is an academic researcher from Universidade Estadual de Maringá. The author has contributed to research in topics: Supercritical fluid & Photodegradation. The author has an hindex of 7, co-authored 11 publications.
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Papers
The effects of temperature on the molecular orientation of zinc phthalocyanine films
Luciana Gaffo,Márcia R. Cordeiro,Adonilson R. Freitas,W. C. Moreira,Emerson M. Girotto,Valtencir Zucolotto +5 more
TL;DR: The morphological and structural features of 80nm thick zinc phthalocyanine films were investigated, evidencing an α-→-β phase transformation after annealing the films at 200°C, as indicated by UV-Vis spectroscopy and FTIR analyses.
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PET and aluminum recycling from multilayer food packaging using supercritical ethanol
Silvia Luciana Fávaro,Adonilson R. Freitas,T. A. Ganzerli,Antonio G.B. Pereira,Adriano Luciano Cardozo,O. Baron,Edvani C. Muniz,Emerson M. Girotto,Eduardo Radovanovic +8 more
TL;DR: In this paper, the authors presented an alternative for recycling of a quite common food packaging kind, which contains polyethylene (PE), aluminum and poly(ethylene terephthalate) (PET) as a multilayer film.
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PET depolymerisation in supercritical ethanol catalysed by [Bmim][BF4]
Cátia S. Nunes,Michael J. V. da Silva,D. C. da Silva,Adonilson R. Freitas,Fernanda A. Rosa,Adley F. Rubira,Edvani C. Muniz +6 more
TL;DR: In this article, a 23 factorial design was employed to evaluate the effect of different inputs such as reaction time after supercritical condition, volume of ionic liquid (VIL) and amount of PET in the yield of DET.
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A pH/enzyme-responsive polymer film consisting of Eudragit ® FS 30 D and arabinoxylane as a potential material formulation for colon-specific drug delivery system
Mirela Fulgencio Rabito,Adriano V. Reis,Adonilson R. Freitas,Elias Basile Tambourgi,Osvaldo Albuquerque Cavalcanti +4 more
TL;DR: The arabinoxylane-loader films showed a more pronounced weight loss after their immersion in buffer solution containing enzyme Pectinex® 3X-L, which meant that the enzyme-dependent propriety issued from the arabinxylane has been imprinted into the film formulation.
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Degradation of polychloroprene/natural rubber (PCP/NR) blends by photo-Fenton process
TL;DR: In this article, the effect of light and FeCl3·6H2O on polychloroprene (PCP)/natural rubber (NR) blends in toluene solution was investigated to demonstrate the influence of each polymer on the degradation process.
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