Zobrazeno 1 - 10 of 21 pro vyhledávání: '"Carlos R. Wolf"'
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Akademický článek
Transformação de triglicerídeos em combustíveis, materiais poliméricos e insumos químicos: algumas aplicações da catálise na oleoquímica Transformation of triglycerides into fulels, polymers and chemicals: some applications of catalysis in oleochemistry
Autor: Paulo A. Z. Suarez, Simoni M. Plentz Meneghetti, Mario R. Meneghetti, Carlos R. Wolf
Publikováno v: Química Nova, Vol 30, Iss 3, Pp 667-676 (2007)
The use of biomass as raw-material for obtaining chemicals, polymers and fuels is emerging as a clever alternative solution for the increasing energy demand, environmental awareness and petroleum shortage. In this work, some attempts in order to deve
Externí odkaz: https://doaj.org/article/e5adbdbd7e324093a18b82618d16505e
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2
Hybrid silicas/waterborne polyurethane composite properties: In situ formation vs. grafting methods
Autor: Carlos R. Wolf, João Henrique Zimnoch dos Santos, Cesar A. Heck
Publikováno v: Journal of Sol-Gel Science and Technology. 81:505-513
A series of composites of commercial waterborne polyurethane and hybrid silica were prepared by the sol–gel process through in situ synthesis. Mechanical properties, small angle X-ray scattering and differential scanning calorimetry measurements we
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bf0f6b91563dc47eb3ff96181ddde7c0
https://doi.org/10.1007/s10971-016-4220-z
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3
Waterborne polyurethane: the effect of the addition or in situ formation of silica on mechanical properties and adhesion
Autor: Carlos R. Wolf, João Henrique Zimnoch dos Santos, Cesar A. Heck
Publikováno v: International Journal of Adhesion and Adhesives. 58:13-20
A series of composites consisting of commercial waterborne polyurethane (PU) and silica were prepared by in situ synthesis (sol-gel method) and compared to those prepared by the addition of commercial silica (blending method). Adhesion resistance, me
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd4a6b3f523c57fcf4bfe637f423b567
https://doi.org/10.1016/j.ijadhadh.2014.12.006
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4
Determination of Alkyl Esters Content by Gas Chromatography: Validation of Method Based on Short Column and Response Factor
Autor: Janaína H. Bortoluzzi, Lucas Natã de Melo, Carlos R. Wolf, Filipe Lins da Silva, Simoni M.P. Meneghetti
Publikováno v: Journal of the Brazilian Chemical Society, Volume: 29, Issue: 6, Pages: 1336-1343, Published: JUN 2018
Journal of the Brazilian Chemical Society v.29 n.6 2018
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
In this study an analytical method, based on gas chromatography with flame ionization detection, using a short column and response factor (GCSCRF), was validated for the quantification of fatty acid alkyl esters (methylic or ethylic). During the vali
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::634c572791b4a6d52a3ad33a421a5fbd
https://doi.org/10.21577/0103-5053.20170232
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5
Linear Low-Density Polyethylene Softening Point and Endothermic Curve Profile Correlation: DSC Technique
Autor: Mariângela de Camargo, Maria Madalena de Camargo Forte, Carlos R. Wolf, Nilo Sérgio Medeiros Cardozo, João Mário Bertoldi Porcello
Publikováno v: International Journal of Polymer Analysis and Characterization. 16:95-106
Two different linear low-density polyethylenes (LLDPE) were investigated by successive self-nucleation and annealing (SSA) thermal fractionation via differential scanning calorimetry (DSC). Samples with the same density and melt flow rate, very close
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49a60b266bc493d86d353c6303ba4fc0
https://doi.org/10.1080/1023666x.2011.541080
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6
Moringa oleifera oil: Studies of characterization and biodiesel production
Autor: Carlos R. Wolf, Jhosianna P.V. da Silva, Mario R. Meneghetti, Tatiana M. Serra, Marcelo Gossmann, Simoni M.P. Meneghetti
Publikováno v: Biomass and Bioenergy. 34:1527-1530
This work describes studies with the seeds of Moringa oleifera (MO), obtained in the northeast of Brazil, evaluating some properties and chemical composition of the oil, as well any potential application in biodiesel production. The studied physicoch
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c86277dfeb76263737072b4d5d1492f0
https://doi.org/10.1016/j.biombioe.2010.04.002
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7
Transesterification of soybean oil in the presence of diverse alcoholysis agents and Sn(IV) organometallic complexes as catalysts, employing two different types of reactors
Autor: Daniel Ribeiro de Mendonça, Mario R. Meneghetti, Carlos R. Wolf, Jhosianna P.V. da Silva, Simoni M.P. Meneghetti, Rusiene M. de Almeida
Publikováno v: Applied Catalysis A: General. 365:105-109
A systematic study on alcoholysis of soybean oil in the presence of Sn(IV) complexes, to produce fatty acid alkyl esters, was carried out under different reaction conditions. Firstly, two different types of reactors have been employed and compared: a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7042d22979157ebece6bb3b16443b020
https://doi.org/10.1016/j.apcata.2009.06.002
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8
Linear Low Density Polyethylene Thermal Fractionation by DSC Technique
Autor: Mariangela de Camargo, Carlos R. Wolf, Maria Madalena de Camargo Forte
Publikováno v: International Journal of Polymer Analysis and Characterization. 13:49-65
Crystallization of linear low density polyethylene was studied through DSC analyses. Melting peak resolution was determined in order to establish the effect of crystallization conditions on polymer thermal fractionation. The isothermal number, fracti
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9bedf790b48726a834fcb66a531737c9
https://doi.org/10.1080/10236660701802593
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9
Methanolysis of soybean oil in the presence of tin(IV) complexes
Autor: Simoni M.P. Meneghetti, Mario R. Meneghetti, Daví A.C. Ferreira, Carlos R. Wolf
Publikováno v: Applied Catalysis A: General. 317:58-61
In this work, we present the results obtained from the methanolysis of soybean oil using tin(IV)-based commercial compounds as catalysts. In order to characterize the behavior of such catalytic systems in the reaction medium, different reaction times
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7204b7d4a364a62fd3f9c199aa72ad48
https://doi.org/10.1016/j.apcata.2006.10.002
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10
Ethanolysis of castor and cottonseed oil: A systematic study using classical catalysts
Autor: Mario R. Meneghetti, João Inácio Soletti, Simoni M.P. Meneghetti, Carlos R. Wolf, Gilvan E. S. Lima, Masurquede Coimbra, Eid C. da Silva, Sandra Carvalho
Publikováno v: Journal of the American Oil Chemists' Society. 83:819-822
Several classical catalytic systems for the transesterification reaction have been used to produce FA ethyl esters (FAEE) from castor and cottonseed oils The effects of the amount and nature of the catalyst, and of the reaction temperature, on the yi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6dab5241a393f8834f0ea454767d71fa
https://doi.org/10.1007/s11746-006-5020-3
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