Search Results - "Rita C.L. Dutra"

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    Infrared reflectance techniques applied to silica particles diameter determination - theoretical and experimental data by Magalhães, Rachel F, Barros, Alexandra H DE, Takematsu, Marcia M, Passero, Alan, Diniz, Milton F, Sciamareli, Jairo, Dutra, Rita C L

    Published in Anais da Academia Brasileira de Ciências (01-01-2022)
    “…Abstract Silica is a versatile material employed in different applications fields including aerospace, especially for rocket engines thermal protections. It is…”
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    Journal Article
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    The role of organoclay in the diffusion of epoxy‐amine oligomers and in the cross‐linking density of the resulting network by Baruel, Amanda F., Dutra, Rita C. L., Diniz, Milton F., Azevedo, Margarete F. P., Cassu, Silvana N.

    Published in Journal of applied polymer science (05-03-2023)
    “…Epoxy nanocomposites are promising for adhesive applications due to their high performance. In this work, an organoclay (PO), prepared by cationic exchanging…”
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    Journal Article
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    Characterization of the curing agents used in epoxy resins with TG/FT-IR technique by Romão, Benedita M. V., Diniz, Milton F., Azevedo, Margarete F. P., Lourenço, Vera L., Pardini, Luiz C., Dutra, Rita C.L., Burel, Fabrice

    Published in Polímeros, ciência e tecnologia (01-06-2006)
    “…Samples of epoxy resin (EP) based on the diglycidyl ether of bisphenol A (DGEBA), cured with nadic methyl anhydride (NMA) and mercaptan (CAPCURE 3-800), or…”
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    Performance analysis of injectors for a hybrid propulsion system by Pedreira, Shirley M., Dutra, Rita C. L., Oliveira, José I. S., Gonçalves, Rene F. B., Rocha, Roberta J., Rocco, José A. F. F.

    “…This paper presents a study about injectors, where the radial injector was evaluated. This type of injector was chosen because only a small amount of…”
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    Determination of Primary Amine Content in Bonding Agent Used in Composite Solid Propellants by Oliveira, José I. S., Pires, Darci C., Diniz, Milton F., Siqueira, Jorge L., Mattos, Elizabeth C., Rezende, Luis C., Iha, Koshun, Dutra, Rita C. L.

    Published in Propellants, explosives, pyrotechnics (01-08-2014)
    “…The primary amine content in tetraethylenepentamine (TEPA) and TEPAN, a bonding agent used in composite solid propellants, was determined by near infrared…”
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    Characterization of Polymer-Coated RDX and HMX Particles by da Costa Mattos, Elizabeth, Moreira, Enézio D., Diniz, Milton F., Dutra, Rita C. L., da Silva, Gilson, Iha, Koshun, Teipel, Ulrich

    Published in Propellants, explosives, pyrotechnics (01-02-2008)
    “…Fourier transform‐infrared spectroscopy (FT‐IR) in transmission and photoacoustic detection (PAS) techniques have been used for the characterization of…”
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    Determination of the HMX and RDX content in synthesized energetic material by HPLC, FT-MIR, and FT-NIR spectroscopies by Mattos, Elizabeth C., Moreira, Enézio D., Dutra, Rita C. L., Diniz, Milton F., Ribeiro, Ana Paula, Iha, Koshun

    Published in Química nova (01-08-2004)
    “…A new method has been developed for determining the content of mixtures of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) and…”
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    MIR/NIR/FIR Characterization of Poly-AMMO and Poly-BAMO and their Precursors as Energetic Binders to be Used in Solid Propellants by de Oliveira, José Irineu S., Diniz, Milton F., Kawamoto, Aparecida M., Dutra, Rita C. L., Keicher, Thomas

    Published in Propellants, explosives, pyrotechnics (01-10-2006)
    “…To establish the relation between structure and properties of composite solid propellants it is important to know the structure of the elastomeric binder that…”
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    Mercapto-modified copolymers in polymer blends, 1. Functionalization of EPDM with mercapto groups and its use in NBR/EPDM blends by Oliveira, Marcia G., Soares, Bluma G., Santos, Cláudia M. F., Diniz, Milton F., Dutra, Rita C. L.

    Published in Macromolecular rapid communications. (01-10-1999)
    “…Ethylene‐propylene‐diene rubber (EPDM) was reacted with thioacetic acid in the presence of 2,2′‐azoisobutyronitrile (AIBN), giving rise to thioacetate‐modified…”
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    Comparação de Técnicas FTIR de Transmissão, Reflexão e Fotoacústica na Análise de Poliamida-6, Reciclada e Irradiada by Evora Maria C., Gonçalez Odair L., Dutra Rita C.L., Diniz Milton F., Wiebeck Helio, Andrade e Silva Leonardo G. de

    Published in Polímeros, ciência e tecnologia (01-01-2002)
    “…Um estudo comparativo envolvendo técnicas de análise por espectroscopia no infravermelho com transformada de Fourier (FTIR) de transmissão, reflexão e…”
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    Composite materials constituted by a modified polypropylene fiber and epoxy resin by Dutra, Rita C. L., Soares, Bluma G., Campos, Eunice A., De Melo, Josué D. G., Silva, José L. G.

    Published in Journal of applied polymer science (05-07-1999)
    “…A polyblend fiber constituted of polypropylene (PP) and an ethylene–vinyl acetate copolymer modified with mercapto groups was employed for the preparation of…”
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    Polyblend fibers from polypropylene and mercapto-modified EVA by Dutra, Rita C. L., Soares, Bluma G., Gorelova, Marianna M., Silva, José L. G., Lourenço, Vera L., Ferreira, Gilton E.

    Published in Journal of applied polymer science (19-12-1997)
    “…Polyblend fibers were made from mixtures of polypropylene (PP) and ethylene‐vinyl acetate copolymers (EVA) or their mercapto‐modified products…”
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    Determinação por espectroscopia nas regiões MIR/NIR do teor de NCO em adesivos poliuretânicos Determination of NCO contents in polyurethane adhesives using MIR/NIR spectroscopies by Sandra H. S. Siqueira, Rita C.L. Dutra, Milton F. Diniz

    Published in Polímeros, ciência e tecnologia (01-03-2008)
    “…Adesivos poliuretânicos (AD-PU), contendo teor conhecido de isocianato (NCO), foram preparados, nos laboratórios da Rohm and Haas Química Ltda, e amostras…”
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    Determinação por espectroscopia nas regiões MIR/NIR do teor de NCO em adesivos poliuretânicos by Siqueira, Sandra H. S., Dutra, Rita C.L., Diniz, Milton F.

    Published in Polímeros, ciência e tecnologia (01-03-2008)
    “…Adesivos poliuretânicos (AD-PU), contendo teor conhecido de isocianato (NCO), foram preparados, nos laboratórios da Rohm and Haas Química Ltda, e amostras…”
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    Avaliação da aplicabilidade de técnicas MIC/FT-IR/DSC para a caracterização de filmes multicamadas by Nogueira, Luciano M., Dutra, Rita C.L., Diniz, Milton F., Pires, Marcia, Evangelista, Mônica, Santana, Fernanda A., Tomasi, Leandro, Santos, Priscila dos, Nonemacher, Regina

    Published in Polímeros, ciência e tecnologia (01-06-2007)
    “…Técnicas FT-IR de transmissão, reflexão atenuada (ATR), reflexão difusa (DRIFT), microscopia acoplada ao FT-IR (MIC/FT-IR) e detecção fotoacústica (PAS) foram…”
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    Determination of CHN content in energetic binder by MIR analysis by Oliveira, José Irineu S. de, Diniz, Milton F., Kawamoto, Aparecida M., Dutra, Rita C. L., Keicher, Thomas

    Published in Polímeros, ciência e tecnologia (01-03-2007)
    “…Azide polymers samples were analyzed by FT-MIR in order to develop a quantitative methodology to determine the C, H and N content in energetic polymers used in…”
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