Materiales Poliméricos - GIMAPOL
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HYPERBRANCHED ALKYD RESINS OBTAINED FROM A HYPERBRANCHED POLYESTER POLYOL OF THE FIFTH GENERATION AND TALL OIL FATTY ACID
(Rasayan Journal of Chemistry, 2023-09)The first aim of this study was to synthesize hyperbranched alkyd resins from tall oil fatty acids and a hyperbranched polyester polyol via an esterification reaction. The second aim was to evaluate the effect of the fatty ... -
Styrene–hydroxyethyl acrylate copolymer based alkyd resins with a comb-type structural morphology obtained with a high solid content
(Journal of Applied Polymer ScienceWashintong D.C , Estados Unidos, 2016-06-22)Nowadays, so many studies are being carried out with the goal of obtaining environmentally friendly materials. In this study, styrene–hydroxyethyl acrylate copolymer (St-co-HEA) based alkyd resins with high solid contents ... -
Comb-shaped silicone-alkyd resins with high solid content
(Progress in Organic CoatingsWashintong D.C , Estados Unidos, 2017-04)An unique com-shaped silicone-alkyd resins (SiAR) were synthesized with high solid content (65 wt%) prepared from an alkyd resin (AR) and a varying weight% (5, 10, 15, 20) of silicone moiety (Z-6018) by etherification ... -
Effects of metal doping agent on the properties of Nb2−xMxO5 (M = Mn, Fe, and Ni) system
(International Journal Of Applied Ceramic TechnologyBogota , Colombia, 2018-05-21)In order to improve the behavior Niobium pentoxide on oxidation-reductionreactions to degrade organic compounds in aqueous solutions, we developed the synthesis of Niobium pentoxide with the metal doping agents: manganese,iron, ... -
Functionalization in solution of polypropylene with a maleinized hyperbranched polyol polyester: Structural, thermal, rheological, and mechanical properties
(Journal of Applied Polymer ScienceWashintong D.C , Estados Unidos, 2018-07-18)The functionalization of polypropylene (PP) with a maleinized hyperbranched polyester polyol (MHBP) was performed in solution to obtain PP-g-MHBPs. The degree of functionalization (FD) increased with MHBP and dicumyl ... -
Maleinized Hyperbranched Polyol Polyester: Effect of the Content of Maleic Anhydride in the Structural, Thermal and Rheological Properties
(Macromolecular Research, 2019-03-29)The aim of this work is to obtain the material that, in the future, may become a better alternative, as a functionalizing agent, to maleic anhydride (MA), or a crosslinking agent with the least amount of functional groups. ... -
Vibrational Raman modes and particle size analysis of cupric oxide with calcination temperature
(Indian Journal Of Pure '&' Applied PhysicsNueva Delhi , India, 2019)In this work a study of the effect of the synthesis conditions on the vibratory and particle size properties in the cupric oxide (CuO) has been presented. The synthesis has been carried out by the polymeric precursor method ... -
Structural, thermal, rheological, morphological and mechanical properties of polypropylene functionalized in molten state with maleinized hyperbranched polyol polyester
(European Polymer Journal, 2019-09)In a previous study, we realized the functionalization of polypropylene (PP) with maleinized hyperbranched polyol polyester (MHBP) by using dicumyl peroxide (DCP) as an initiator for obtaining the PP-g-MHBPs. This process ... -
Compatibilization of LDPE/PA6 by Using a LDPE Functionalized with a Maleinized Hyperbranched Polyester Polyol
(Macromolecular Research, 2019-11-12)Low density polyethylene (LDPE)/polyamide6 (PA) blends can lead to a synergy between the properties of these materials. These blends are employed mainly in the packing industry, especially in food factories. The problem ... -
Effect of Calcination Temperature on the Behavior of the Agglomerated Co3O4 Nanoparticles Obtained Through the Sol–Gel Method
(Journal of Inorganic and Organometallic Polymers and MaterialsWashintong D.C , Estados Unidos, 2020-07-31)gglomerates of Co3O4 were obtained using the sol–gel method for the synthesis with subsequent calcination of the samples up to 550 °C. Through X-rays it was observed that the samples presented the pure spinel phase with a ... -
Waterborne star-shaped styrene-alkyd resins
(Journal of Applied Polymer Science, 2019-08-13)Waterborne star-shaped styrene-alkyd resins (SSARs) were synthesized from a branched alkyd resin (AR) and styrene (St) by miniemulsion polymerization. SSARs are an environmentally friendly material. The ratio of AR to St ... -
Carbazole-Based Hyperbranched Polyester Polyol: Structural, Rheological, Thermal and Optical Properties
(Macromolecular Research, 2021-04-24)The present study sought to obtain a hyperbranched polyester polyol derivative with fluorescent properties. Initially, a 4-((4-(9H-carbazol-9-yl)benzyl)oxy)-4-oxobut-2-enoic acid (CAV) was synthesized and esterified with ... -
Colloidal, morphological, thermal, rheological, and film properties of waterborne hyperbranched alkyd¿acrylic resins
(Journal of Coatings Technology Research, 2019-04-23)Waterborne hyperbranched alkyd–acrylic resins (HAAR) are interesting materials that provide excellent properties yet require only low levels of solvent in formulations using them. However, they have been scarcely studied. ... -
Synthesis and Structural Properties of Niobium Pentoxide Powders: A Comparative Study of the Growth Process
(Materials ResearchBrasilia , Brasil, 2016-10-10)Powders Nb2 O5 were prepared by two different synthesis method, Sol-Gel and polymeric precursors (Pechini). In the Pechini method before adding the citric acid in the process, four different solutions were used to get the ... -
Polietileno de baja densidad funcionalizado con un poliéster poliol altamente ramificado maleinizado
(Ingeniería Y CienciaBogota , Colombia, 2016-02-22)En este trabajo, polietileno de baja densidad (PEBD) fue modificado en estado fundido con un poliester poliol altamente ramificado maleinizado (HBPAM), usando varias proporciones de peróxido de dicumilo (0.5, 1.0, 1.5 ... -
Synthesis and characterization of the oxide nanoparticles obtained by the polymeric precursor method
(Journal of Physics: Conference SeriesBerlin , Alemania, 2016-02-12)Niobium pentoxide (Nb2O5) nanoparticles were prepared by the polymeric precursor method using citric acid as a chelating agent and ethylene glycol as a polymerizing agent. The powders obtained were characterized by X-ray ... -
Quicklime as an alternative in the photodegradation of contaminants
(Journal of Physics: Conference SeriesBogota ,Colombia, 2016-02-12)Chemical oxidation is one of the many different methods of removing contaminants that has emerged recently, is an alternative method to traditional techniques. According to this research calcium peroxide is suitable choice ... -
Study of the structural, thermal, rheological and film properties of functional copolymers of hydroxyethyl acrylate and methyl methacrylate
(PolimerosBrasilia, Brasil, 2016-08-04)New functional polymers will be prepared using alkyd resins having high solid content (environmentally friendly) and comb-type structural morphology. Different copolymers of hydroxyethyl acrylate and methyl methacrylate ... -
Waterborne hyperbranched alkyd-acrylic resin obtained by miniemulsion polymerization
(PolimerosBrasilia , Brasil, 2016-12-08)Four waterborne hyperbranched alkyd-acrylic resins (HBRAA) were synthesized by miniemulsion polymerization from a hyperbranched alkyd resin (HBR), methyl methacrylate (MMA), butyl acrylate (BA) and acrylic acid (AA), by ... -
Mn-modification effects on Nb2O5 structural, optical and vibrational properties
(Journal of Physics: Conference SeriesWashintong D.C , Estados Unidos, 2017-12-29)In this study Mn-modification (at 1%, 2.5%, 5% and 10%) on Nb2O5 was carried out through the Pechini method; the annealing temperatures: 400°C, 500°C, 600°C and 700°C, were used to study the thermal stability of the system ...