A5025859638- Silicone and Siloxane Chemistry
- Advanced Polymer Synthesis and Characterization
- Gold and Silver Nanoparticles Synthesis and Applications
- Photopolymerization techniques and applications
- Synthesis and properties of polymers
- Advanced ceramic materials synthesis
- Polymer Nanocomposites and Properties
- Polymer composites and self-healing
- Dendrimers and Hyperbranched Polymers
- Chemical Synthesis and Characterization
- Advanced Sensor and Energy Harvesting Materials
- Ferroelectric and Piezoelectric Materials
- Nanoparticles: synthesis and applications
- Nanoplatforms for cancer theranostics
- Dielectric materials and actuators
- biodegradable polymer synthesis and properties
- Graphene and Nanomaterials Applications
- Photochromic and Fluorescence Chemistry
- Nanotechnology research and applications
- Synthetic Organic Chemistry Methods
- Epoxy Resin Curing Processes
- Nanomaterials for catalytic reactions
- Nanomaterials and Printing Technologies
- Dental materials and restorations
- Arsenic contamination and mitigation
National University of Mar del Plata
2012-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2008-2020
Instituto de Investigaciones en Ciencia y Tecnología de Materiales
2009-2020
National Academies of Sciences, Engineering, and Medicine
2008-2020
Centro Científico Tecnológico Mar del Plata
2020
The anionic epoxy homopolymerization initiated by tertiary amines, imidazoles, and ammonium salts is a complex reaction exhibiting two undesired characteristics for practical applications: (a) slow rates with long induction periods, (b) short primary chains due to the high rate of chain transfer reactions. Therefore, these systems have not found an important place in commercial applications. In this study, it shown that using 4-(dimethylamino)pyridine (DMAP) as initiator polymerization...
Vitrimers synthesized from epoxy-carboxylic acid-alkylamine (Cn) formulations exhibit tunable mechanical properties and stress relaxation without using external catalysts.
The introduction of reactive functionalities in the organic groups used to stabilize inorganic nanoparticles (NPs) enables multiple applications based on their covalent fixation a variety materials, substrates and interfaces. In this paper we report synthesis silver with an average diameter about 4 nm, coated particular that allow solubility solvents bonding through secondary hydroxyl present structure. Water-dispersible NPs stabilized 11-mercaptoundecanoate anions were first synthesized....
A detailed understanding of the processes taking place during in situ synthesis metal/polymer nanocomposites is crucial to manipulate shape and size nanoparticles (NPs) with a high level control. In this paper, we report an in-depth time-resolved analysis particle formation process silver/epoxy obtained through visible-light-assisted synthesis. The selected epoxy monomer was based on diglycidyl ether bisphenol A, which undergoes relatively slow cationic ring-opening polymerization. This...
Abstract A polyhedral oligomeric silsesquioxane (POSS) consisting of a mixture perfect and imperfect polyhedra with 8–10 Si atoms bonded to bulky branched organic groups functionalized ( β ‐hydroxy)‐tertiary amines, was adsorbed on an activated silica from toluene solution. POSS fixation confirmed by measuring its concentration in the solutions resulting filtering repeatedly washing toluene. Diffuse reflectance infrared Fourier‐transformed (DRIFTS) spectra modified showed decrease absorption...
Abstract Summary: A new class of silsesquioxane (SSO), containing species with two to nine Si atoms bearing multiple intramolecular rings formed through SiOC bonds, was synthesized as a glassy powder. It characterized by UV‐MALDI‐TOF MS, 29 NMR and FT IR. Solutions different amounts SSO in the diglycidyl ether bisphenol (DGEBA), were homopolymerized presence (4‐dimethylamino)pyridine (DMAP) initiator, leading SSO‐modified epoxy networks. covalently bonded network without any evidence phase...
The great supply of glycerol as a byproduct the production biodiesel has motivated interest in its use new applications. In this study, we report synthesis and properties organic–inorganic hybrid materials based on glycerol. Glycerol (Gly) was reacted with 3-isocyanatopropyltriethoxysilane (IPTES) presence dibutyltin dilaurate (DBTDL) catalyst, using molar ratio (r = IPTES/Gly) between 0.75 3. sol–gel polycondensation resulting precursors formic acid solution led to transparent solid...
Metal/polymer nanocomposites have attracted much attention in recent years due to their exceptional properties and wide range of potential applications. A key challenge obtain these materials is stabilize the metal nanoparticles matrix, avoiding uncontrolled aggregation processes driven by high surface free energy nanosized particles. Here, we investigate mechanism primary particles gold-epoxy prepared via light-assisted situ synthesis, under different irradiation conditions. The growth gold...
The synthesis and characterization of silsesquioxane (SSO) films with pendant dodecyl groups doped goethite (Gt) or montmorillonite (MMT) nanoparticles were carried out the new materials tested as sorbents diverse contaminants. synthetic method used yielded SSO inorganic substrates homogeneously distributed within polymeric matrices. characterized by SEM, FTIR, XRD, DSC to evaluate their capability for adsorbing metallic cations, organic dyes, phosphate, frequent contaminants industrial...
The photothermal response of mercaptoundecanoic acid (MUA)-coated Ag nanoparticles (Ag@MUA NPs) in both aqueous dispersions and paper substrates was determined as a function pH when irradiated with green laser or blue LED source. Aqueous Ag@MUA NPs showed an aggregation behavior by acidification that used for the formation clusters variable sizes. Aggregation induced changing across apparent pKa acid, higher than free acid. Formation these aggregates completely reversible allowing return to...