Results 131 to 140 of about 40,793 (278)
Synthesis Of Biodiesel From Waste Cooking Oil By Two Steps Process Transesterification And Ozonation [PDF]
, 2015 The synthesis of biodiesel has been widely studied. There are many raw materials used for the synthesis either from edible or non-edible oil. In this study, we investigated the synthesis of biodiesel using two steps process.
Purwanto, Edy +4 more
core +1 more source
Thiolate Salt Mediated Dynamic Silyl Ether Exchanges for Polymer Network Design and Deconstruction
Macromolecular Rapid Communications, EarlyView.This work introduces thiolate salts as mediators for dynamic silyl ether exchange. This platform enables the synthesis of reprocessable covalent adaptable polymer networks (CANs) and allows for sterically controlled, and tunable deconstruction of silyl ether‐containing thermosets.
Pierce T. Bombard +9 more
wiley +1 more source
Imobilização de lipase de Candida antarctica B em quitosana para obtenção de biodiesel por transesterificação do óleo de mamona [PDF]
, 2007 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia QuímicaEste trabalho teve como objetivo principal estudar a imobilização de lipase comercial (Lipozyme CALB L) em esferas de ...
Cruz Júnior, Américo
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Macromolecular Rapid Communications, EarlyView.High‐performance 1,3,5‐triazine epoxy networks are prepared via solvent‐free curing and recycled using nucleophilic aromatic substitution (SNAr) chemistry. This robust thermoset undergoes clean depolymerization into well‐defined building blocks for seamless repolymerization, achieving chemical recycling while preserving thermomechanical performance ...
Yi‐Ru Chen +3 more
wiley +1 more source
Conversão de resíduos gordurosos de fritura com a produção de biodiesel por rota catalítica heterogênea [PDF]
, 2012 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Ambiental, Florianópolis, 2010Convencionalmente a produção industrial de biodiesel emprega o processo de transesterificação de óleos ...
Souza, Maria Aparecida de
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Polymer Composites, EarlyView.From end‐of‐life pultruded CFRP profiles (1) to second life composites (7) through mild solvolysis (2,3), wet‐laid nonwoven mat fabrication (4), resin impregnation (5), and compression molding (6). ABSTRACT The growing use of carbon fiber–reinforced thermosets has led to the accumulation of significant composite waste, posing environmental and economic
Ehsan Zolfaghari +6 more
wiley +1 more source
Polymer Engineering &Science, EarlyView.Solid‐state polymerization (SSP) enhances rheological properties, filament stability, and adjusts crystallization issues for improved PET 3D printability. ABSTRACT This paper aims to investigate the impact of solid‐state polymerization (SSP) on the printability of PET for 3D printing.
Benjamin Sandei +5 more
wiley +1 more source
Hydrolysis and transesterification of parabens in an aqueous solution in the presence of glycerol and boric acid [PDF]
, 2016 In a solution containing 0.067% methylparaben, 0.033% propylparaben, 3.4% glycerol and 2.0% boric acid, concentrations of both parabens, 4 hydroxybenzoic acid and 2,3-dihydroxypropyl 4-hydroxybenzoate were monitored for up to 68 months storage.
Marie Marečkova +2 more
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Polymer Engineering &Science, EarlyView.Development of TPSA‐PBSA bio‐based polymer blends using a dual‐coupling strategy based on tartaric acid (TA) and dicumyl peroxide (DCP), followed by structural, thermal, rheological, and mechanical characterization toward sustainable flexible packaging applications. ABSTRACT This study analyzed the effect of employing coupling agents in the development
Manuela Vargas‐Rojas +2 more
wiley +1 more source