15 Result(s)

Article

Antibacterial and non-cytotoxic effect of nanocomposites based in polyethylene and copper nanoparticles

In this study, an antibacterial, but not cytotoxic nanomaterial based on polyethylene and copper nanoparticles was prepared by in situ polymerization. PE–CuNps nanocomposites against Escherichia coli, completely ...

L. A. Tamayo, P. A. Zapata, F. M. Rabagliati… in Journal of Materials Science: Materials in… (2015)

Article

Preparation of poly(ethylene-co-dicyclopentadiene) copolymers and a study on their post-polymerization epoxidation

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 wi...

Brian C. Peoples, Vivianne N. Dougnac, Griselda B. Galland… in Polymer Bulletin (2013)

Article

Study on the copolymerization of propylene with norbornene using metallocene catalysts

The copolymerization of propylene with norbornene, using the metallocene catalysts Me₂Si(2-Me-Ind)₂ZrCl₂ and Ph₂C(Flu)(Cp)ZrCl₂ was evaluated. The presence of norbornene decreases the polymerization activity in b...

V. N. Dougnac, B. C. Peoples, F. M. Rabagliati, G. B. Galland… in Polymer Bulletin (2012)

Article

Styrene copolymerization using a metallocenic initiator. Homo- and copolymerization of styrene with isoprene through zirconocene–MAO initiating systems

The copolymerization of styrene with isoprene (Ip) has been tested using combined zirconocene–methylaluminoxane (MAO) initiating system. Both “half-sandwich” and real zirconium-based metallocenes were used. Re...

F. M. Rabagliati, L. A. Muñoz, R. Quijada in Polymer Bulletin (2011)

Article

A zirconia-polyester glycol coating on differently pretreated AISI 316L stainless steel: corrosion behavior in chloride solution

The effect of zirconia and zirconia-polyester glycol hybrid coatings on the corrosion resistance of mechanically polished or anodized AISI 316 stainless steel (316L), was studied by potentiodynamic polarizatio...

C. Martinez, M. Sancy, J. H. Zagal… in Journal of Solid State Electrochemistry (2009)

Article

Thermal and Mechanical Properties of Polyethylenes Synthesized with Metallocene Catalysts

A series of high density polyethylenes (HDPE) were synthesized via homogeneous polymerization with metallocene catalyst in two different reactors (glass and stainless steel). The thermal and mechanical propert...

J. Sacristán, R. Benavente, J. M. Pereña… in Journal of Thermal Analysis and Calorimetry (1999)

Article

ReBr(CO)3(3,3'-disubstituted-2,2'-biquinoline) modified complexes as initiating systems for styrene polymerization

C. A. Terraza, J. Guerrero, S. A. Moya, F. M. Rabagliati in Polymer Bulletin (1998)

Article

Polymerization of styrene by diphenylzinc-additive systems Part VII: Ph2Zn-(n-BuCp)2TiCl2-MAO systemsa

F. M. Rabagliati, M. A. Pérez, R. Quijada in Polymer Bulletin (1998)

Article

Some studies on styrene polymerization using new systems prepared from coordination metal compounds ReBr(CO)3(3,3′-dimethyl-2,2′-biquinoline)-diphenylzinc with and without MAO systems

The monovalent rhenium compounds ReBr(CO)₃(3,3′-dimethyl-2,2′-biquinoline) (I) and ReBr(CO)₅ (II) could be used as catalysts in styrene polymerization after activation with diphenylzinc (Ph₂Zn) and methylalumino...

C. A. Terraza, J. Guerrero, S. A. Moya, F. M. Rabagliati, R. Quijada in Polymer Bulletin (1998)

Article

Polymerization of styrene by diphenylzinc-additive systems

The polymerization of styrene using combined systems of diphenylzinc-biscyclopentadienyltitanium dichloride-methylaluminoxane, Ph₂Zn-Cp₂TiCl₂-MAO, in toluene at 60°C produced highly syndiotactic polystyrene. The ...

F. M. Rabagliati, M. Pérez, H. A. Ayal, C. A. Terraza, R. Quijada in Polymer Bulletin (1997)

Article

The soluble and insoluble product of diphenylzinc-water systems as initiator in styrene polymerization

The solution resulting from reaction between Ph₂Zn and H₂O in benzene was used by itself and separated in soluble and insoluble fractions to initiate styrene polymerization. The soluble fraction produced the larg...

C. A. Terraza, F. M. Rabagliati in Polymer Bulletin (1997)

Article

Study of metallocene supported on porous and nonporous silica for the polymerization of ethylene

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 perce...

R. Quijada, R. Rojas, L. Alzamora, J. Retuert, F.M. Rabagliati in Catalysis Letters (1997)

Article

Block copolymers

The preparation of acid chloride of poly(propylene oxide), PPO, the synthesis of prepolymer poly(p-benzamide), and of block copolymers of poly(p-benzamide)-b-poly(propylene oxide) are reported. The preparation...

F. M. Rabagliati, M. Aravena, I. Lillo, H. A. Ayal, B. L. Rivas… in Polymer Bulletin (1996)

Article

Further studies on styrene polymerization using diphenylzinc-additive systems

Diphenylzinc-water-organic monochloride systems, Ph₂Zn-H₂O-RCl, with n-, sec- and tert-butyl chloride (t-BuCl) and benzyl chloride (BzCl), were used to induce styrene polymerization. Improvement in polymer conver...

C. A. Terraza, F. M. Rabagliati in Polymer Bulletin (1996)

Article

Polymerization of styrene with diphenylzinc-water systems previously aged

Diphenylzinc-water systems, Ph₂Zn-H₂O, were aged at various temperatures and for various lengths of time. These systems by themselves and those to which t-butyl chloride was added, Ph₂Zn−H₂O−Bu^tCl, were used as i...

C. A. Terraza, F. M. Rabagliati in Polymer Bulletin (1995)