Showing papers by "Eduardo Radovanovic published in 2005"
TL;DR: In this paper, virgin or oxidized films of PET and PS were submitted to surface modification by grafting of poly(N-isopropylacrylamide) or PNIPAAm.
76 citations
TL;DR: In this paper, the pore size of hydrogel heated above LCST became progressively smaller, indicating that the porous effect is due to the interpenetrated networks of IPN hydrogels.
57 citations
TL;DR: In this paper, the authors characterized superabsorbent hydrogels based on methacrylated cashew gum (CGMA) co-polymerized with acrylamide (AAm) by measuring of the water uptake, water retention capacity in dependence of time, morphological and mechanical properties.
47 citations
TL;DR: In this article, free radical grafting of glycidyl methacrylate (GMA) onto polypropylene (PP) films was studied using supercritical carbon dioxide (SC-CO 2 ) as a solvent and a swelling agent.
38 citations
TL;DR: In this paper, solid phase photopolymerization of polypyrrole (Py) into a polyvinylchloride (PVC) matrix was investigated. And a reaction mechanism was proposed to explain the PPy formation in solid phase induced by UV light.
37 citations
TL;DR: In this paper, interpenetrated polymer networks (IPN) composed of alginate-Ca 2+ and poly( N -isopropylacrylamide), PNIPAAm, were synthesized and their water uptake capability was measured at temperatures from 25 to 40°C.
36 citations
TL;DR: In this article, bisphenol-A polycarbonate (PC) with poly(methyl methacrylate) (PMMA) doped with europium (III) acetylacetonate have been studied by differential scanning calorimetry (DSC), infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and photoluminescent (PL).
34 citations
TL;DR: In this article, the existing physical interactions between the filler and elastomer were analyzed through the extraction of the sol phase of styrene-butadiene rubber (SBR)-butane rubber (BR)/SiO 2 composites, and the activation energy was calculated from differential thermogravimetry curves obtained during pyrolysis analysis.
Abstract: Silica as a reinforcement filler for automotive tires is used to reduce the friction between precured treads and roads This results in lower fuel consumption and reduced emissions of pollutant gases In this work, the existing physical interactions between the filler and elastomer were analyzed through the extraction of the sol phase of styrene-butadiene rubber (SBR)-butadiene rubber (BR)/SiO 2 composites The extraction of the sol phase from samples filled with carbon black was also studied The activation energy (E a ) was calculated from differential thermogravimetry curves obtained during pyrolysis analysis For the SBR-BR blend, E a was 315 kJ/mol The values obtained for the composites containing 20 and 30 parts of silica per hundred parts of rubber were 231 and 197 kJ/mol, respectively These results indicated an increasing filler-filler interaction, instead of filler-polymer interactions, with respect to the more charged composite A microscopic analysis with energy-dispersive spectroscopy showed silica agglomerates and matched the decreasing E a values for the SBR-BR/30SiO 2 composite well
11 citations