Browsing by Author "Quijada Abarca, Juan"
Now showing items 21-32 of 32
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Peoples, Brian C.; Dougnac, Vivianne N.; Galland, Griselda B.; Rabagliati, Franco M.; Quijada Abarca, Juan (Springer, 2013)The copolymerization of ethylene with dicyclopentadiene (DCP) using the metallocene catalyst rac-dimethylsilylbis(indenyl)zirconium dichloride (Me2Si(Ind)2ZrCl2) proceeds with high activity producing materials with ...
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Yave, Wilfredo; Quijada Abarca, Juan; Serafini, Daniel; Lloyd, Douglas R. (WILEY-V C H VERLAG GMBH, 2006-02-10)Poly[propylene-co-(1-hexene)], one example of a "tailor-made poly(propylene)", was synthesized using an iso-specific metallocene catalyst in order to study the influence of copolymer composition on the pore size of isotactic ...
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Zapata, Paula A.; Belver, Carolina; Quijada Abarca, Juan; Aranda, Pilar; Ruiz Hitzky, Eduardo (Elsevier, 2013)Two clay organo-heterostructures have been prepared and employed as fillers and catalyst supports for the development of polyethylene–clay nanocomposites. The new silica–clay organo-heterostructures have been obtained ...
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Maldonado Magnere, Santiago Ignacio (Universidad de Chile, 2020)Los elastómeros termoplásticos son polímeros sintéticos que presentan excelentes propiedades elásticas y pueden ser procesados como termoplásticos convencionales. Entre estos se destacan dos familias: elastómeros termoplásticos ...
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Quijada Abarca, Juan; Rojas, Rene; Alzamora, Luis; Retuert, Jaime; Rabagliati, Franco M. (1997)Porous and nonporous silicas are good supports for the synthesis of coordinative heterogeneous catalysts for ethylene polymerization. The catalytic activity of nonporous Aerosil depends critically on the percentage of ...
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Quijada Abarca, Juan; Guevara, Juan Luis; Yazdani-Pedram Zobeiri, Mehrdad; Galland, Griselda B.; Ribeiro, D. (SPRINGER-VERLAG, 2002-12)1-Octadecene (C18) was polymerized by using different metallocene catalysts. The rac-Et(Ind)(2)ZrCl2/MAO (I) and rac-Me2Si(Ind)(2)ZrCl2/MAO (III) presented the highest C, activity as compared with rac-Et(2-Me-Ind)(2)ZrCl2/MAO ...
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Rabagliati, Franco M.; Yáñez, Daniela E.; Canales, Daniel; Quijada Abarca, Juan; Zapata, Paula A. (Springer, 2013)The copolymerization of styrene with cyclohexene, 1-methyl-1-cyclohexene, and norbornene using ethenylbisindenylzirconium dichloride and methylaluminoxane, Et(Ind)2ZrCl2-MAO, initiating systems has been tested. The ...
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Aguilar, Héctor; Yazdani-Pedram Zobeiri, Mehrdad; Toro, Patricio; Quijada Abarca, Juan; López Manchado, Miguel (2014)Inorganic fillers such as CaCO3 and clays are widely used as fillers to improve the mechanical and physical properties of polypropylene (PP). With the aim of improving simultaneously the stiffness and yield stress of PP, ...
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Quijada Abarca, Juan; Guevara, Juan Luis; Galland, Griselda B.; Rabagliati, Franco M.; López Majada, Juan M. (ELSEVIER SCI LTD, 2005-02-14)Copolymerization of propene with two alpha-olefins (1-hexene and 1-octadecene) using iso- and syndioselective metallocene catalysts (EtInd(2)ZrCl(2), Et(2-MeInd)(2)ZrCl2, Me(2)SiInd(2)ZrCl(2), Ph(2)CFluCpZrCl(2) and ...
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Nisar, Muhammad; Pérez Bergmann, Carlos; Geshev, Julián; Quijada Abarca, Juan; Maraschin, Thuany; de Souza Basso, Nara R.; Barrera, Eliana G.; Galland, Griselda Barrera (John Wiley, 2017)Semi-conducting polyethylene (PE) nanocomposites with outstanding magnetic properties at room temperature were synthesized. These exceptional properties, for a diamagnetic and insulating matrix as PE, were obtained by ...
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Milani, Marceo A.; González, Darío; Quijada Abarca, Juan; Benavente, Rosario; Arranz-Andrés, Javier; Galland, Griselda B. (Elsevier, 2015)Poly(propylene-1-octene)/graphite nanosheet (PPC8/GNS) nanocomposites with different comonomer and graphite nanosheet (GNS) contents were synthesized by in situ polymerization using metallocene catalyst. There was a ...
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Palza Cordero, Humberto; Gutiérrez, Sebastián; Delgado, Katherine; Salazar, Oriana; Fuenzalida Escobar, Víctor; Avila, Jonathan I.; Figueroa, Guillermo; Quijada Abarca, Juan (Wiley InterScience, 2010)A set of poly(propylene) composites containing different amounts of copper nanoparticles (CNP) were prepared by the melt mixed method and their antimicrobial behavior was quantitatively studied. The time needed to reduce ...