Microwave Irradiation
BIODIESEL PRODUCTION FROM FATTY ACIDS OF REFINED VEGETABLE OILS BY HETEROGENEOUS ACID CATALYSIS AND MICROWAVE IRRADIATION.
... higher than 90%. In the reaction with fatty acids and methanol catalyzed by A35, the best results were achieved with lauric acid and methanol, with a yield of 97%. An increase in the hydrocarbon chain decreased the rate ...
6
Evolution of phase morphology in dispersed clay systems under the microwave irradiation (Evolução da morfologia de fases em sistemas dispersos de argila sob irradiação de micro-ondas)
... by microwave fields (frequency ...to microwave field absorption by electrically conductive regions of clay ...as microwave field absorption is inhomogeneous in the volume [11] all the samples were ...
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Cell membrane integrity of candida albicans after different protocols of microwave irradiation
... that microwave d isinfection at 650 W for 3 min did not cause detrimental effects on the linear dimensional stability of co mplete dentures ...of microwave irradiation on Candida albicans ...
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INFLUENCE OF MICROWAVE IRRADIATION ON KINETICS AND THERMODYNAMICS OF EXTRACTION OF FLAVONOIDS FROM Phyllanthus emblica
... A 22-litre, 800 W microwave oven (R-219T (S)/(W), SHARP, Japan) was employed for the experiments. 5 g of dried fruits of P. emblica was measured into a round- bottomed flask with varying amount of water (solvent), ...
15
A comparison of the results of experiments carried out under microwave irradiation and conventional heating for the
... In summary, a novel derivative of sucrose with all eight hydroxyl groups substituted with (N-ethyl)carbamate moie- ties was synthesized and fully characterized. Synthetic pro- cedures using microwave ...
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Selective synthesis under Microwave Irradiation of New Monomers for potential applications in PDLC films
... Polymer dispersed liquid crystal (PDLC) films consist, commonly, on nematic liquid crystal domains dispersed in a polymeric matrix. These composites can be switched electrically from an opaque scattering state to a ...
134
Biopolymers Regulate Silver Nanoparticle under Microwave Irradiation for Effective Antibacterial and Antibiofilm Activities.
... In the current study, facile synthesis of carboxymethyl cellulose (CMC) and sodium alginate capped silver nanoparticles (AgNPs) was examined using microwave radiation and aniline as a reducing agent. The ...
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Ketalization of Ketones to 1,3-Dioxolanes and Concurring Self-Aldolization Catalyzed by an Amorphous, Hydrophilic SiO2 -SO3 H Catalyst under Microwave Irradiation
... For the first time it is reported that a mesoporous sulfonated silica with a small surface area, large pore diameters and high hydrophilicity presented a higher affinity for ketones than for alcohols and easily promoted ...
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EXPERIMENTAL Synthesis of gold nanoparticles by microwave irradiation
... The four day storage of the reaction mixture containing α- or β-cyclodextrins that was not subjected to heating or microwave irradiation failed to produce nanoparticles in the concentration that could be ...
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Changes in roughness of denture base and reline materials by chemical disinfection or microwave irradiation: Surface roughness of denture base and reline materials
... 1- Al-Athel M, Jagger R, Jagger D. Effect of ageing on the bond strength of a permanent denture soft lining material. The effects of cross-linking agents 1 resin. Properties of hi[r] ...
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The effect of microwave irradiation on the crystalline structure and catalytic activity of clays.
... 19 Os difratogramas das argilas da Bahia fracionada ( ABF ), fracionada e tratada com ácido ( AB ) e fracionada, tratada com ácido e irradiada com microondas ( ABMO ) são prati- camente[r] ...
11
J. Braz. Chem. Soc. vol.27 número8
... To the best of our knowledge, this is the first work using carotenoids from D. bardawil microalgae to produce volatile compounds, employing microwave irradiation and water bath controlled heating. This ...
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J. Braz. Chem. Soc. vol.16 número4
... under microwave irradiation, the ketone oxime underwent selective oxidative deoximation giving 92% benzophenone, whereas the styrene was recovered unchanged, Scheme ...
3
J. Braz. Chem. Soc. vol.22 número12
... We report here an efficient synthetic route to prepare (E)- 2-(benzo[d]thiazol-2-yl)-3-arylacrylonitriles derivatives conducted by microwave irradiation under solvent-free conditions. These conditions ...
22
J. Braz. Chem. Soc. vol.19 número6
... During the course of our studies we found that ethylacetoacetate (1a) reacted efficiently with phenyl hydrazine (2a), under microwave irradiation (power input 20%), to provide pyrazol-3-one (3a) ...
8
J. Braz. Chem. Soc. vol.20 número5
... by microwave-assisted reaction of 2,3-dichloro- 1,4-naphthoquinone with aminopyridines is ...of microwave irradiation diminished the reaction times and improved the yields substantially in all these ...
4
Structural and electrical study of CaCu3Ti4O12 (CCTO) obtained in a new ceramic procedure
... the microwave irradiation exposure times in the samples, there is an increase of the ...the microwave irra- diation exposure times in the samples lead to a tendency of decrease of the other phases ...
8
Degree of conversion and molecular weight of one denture base and three reline resins submitted post-polymerization treatments
... of microwave irradiation and water bath post-polymerization treatments on Mw, Mn and polydispersivity of polymerized specimens of K reline resin, the only material that does not contain crosslinking agent ...
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Braz. Dent. J. vol.24 número4
... infections. Microwave irradiation has been used as an efficient method of denture ...that microwave disinfection kills microorganisms but do not remove dead bacteria from the denture ...of ...
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Conservadora – DOC, Faculdade de Odontologia, Universidade Federal do Rio Grande do Sul – UFRGS, Porto Alegre, RS, Brasil
... by microwave irradiation and immersion in peracetic acid on the physical-mechanical properties of a microwave-activated acrylic resin were ...method: microwave irradiation at 850 W for ...
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