Search Results - "Valentín, Juan L"

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  1. 1

    Response of water-biochar interactions to physical and biochemical aging by Goñi-Urtiaga, Asier, Courtier-Murias, Denis, Picca, Giuseppe, Valentín, Juan L., Plaza, César, Panettieri, Marco

    Published in Chemosphere (Oxford) (01-11-2022)
    “…Biochar aging may affect the interactions of biochar with water and thus its performance as soil amendment; yet the specific mechanisms underlying these…”
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    Journal Article
  2. 2

    New insight into structure-property relationships of natural rubber and styrene-butadiene rubber nanocomposites filled with MWCNT by Bernal-Ortega, Pilar, Bernal, M. Mar, González-Jiménez, Antonio, Posadas, P., Navarro, Rodrigo, Valentín, Juan L.

    Published in Polymer (Guilford) (26-06-2020)
    “…The outstanding properties of carbon nanotubes (CNT) have generated a lot of interest at a scientist and industrial level. CNT have attracted great attention…”
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  3. 3

    Revisiting Segmental Order: A Simplified Approach for Sulfur-Cured Rubbers Considering Junction Fluctuations and Entanglements by Basterra-Beroiz, Beatriz, Rommel, Robert, Kayser, François, Valentín, Juan L, Westermann, Stephan, Heinrich, Gert

    Published in Macromolecules (13-03-2018)
    “…The use of modern multiple-quantum proton NMR experiments for the determination of cross-link density requires precise knowledge of several model-dependent…”
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  4. 4

    From Nanoscale to Macroscale Characterization of Sulfur-Modified Oxidized Carbon Nanotubes in Styrene Butadiene Rubber Compounds by Posadas, Pilar, Bernal-Ortega, Pilar, Bernal, M. Mar, Nogales, Aurora, Navarro, Rodrigo, Valentín, Juan L.

    Published in ACS omega (23-07-2024)
    “…The homogeneous dispersion of carbon nanotubes (CNTs) in a rubber matrix is a key factor limiting their amazing potential. CNTs tend to agglomerate into…”
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  5. 5

    Introducing “MEW2” Software: A Tool to Analyze MQ-NMR Experiments for Elastomers by Salamanca, Fernando M., Zepeda-Rodríguez, Zenen, Diñeiro, Laura, Escrivá, Marina M., Herrero, Rebeca, Navarro, Rodrigo, Valentín, Juan L.

    Published in Polymers (01-10-2023)
    “…Low-field time-domain proton Nuclear Magnetic Resonance (NMR) spectroscopy is an attractive and powerful tool for studying the structure and dynamics of…”
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  6. 6

    Biodegradable Poly(ester–urethane–amide)s Based on Poly(ε-caprolactone) and Diamide–Diol Chain Extenders with Crystalline Hard Segments. Synthesis and Characterization by Báez, José E, Ramírez, Daniel, Valentín, Juan L, Marcos-Fernández, Ángel

    Published in Macromolecules (11-09-2012)
    “…Twenty seven poly(ester–urethane–amide)s (PEUAs) were synthesized from the reaction of α,ω-telechelic poly(ε-caprolactone) diols, 1,6-hexamethylene…”
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  7. 7

    Sulfur-Modified Carbon Nanotubes for the Development of Advanced Elastomeric Materials by Bernal-Ortega, Pilar, Bernal, M Mar, Blume, Anke, González-Jiménez, Antonio, Posadas, Pilar, Navarro, Rodrigo, Valentín, Juan L

    Published in Polymers (07-03-2021)
    “…The outstanding properties of carbon nanotubes (CNTs) present some limitations when introduced into rubber matrices, especially when these nano-particles are…”
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  8. 8

    Study on peroxide vulcanization thermodynamics of ethylene-vinyl acetate copolymer rubber using 2,2,6,6,-tetramethylpiperidinyloxyl nitroxide by Posadas, Pilar, Fernández-Torres, Alberto, Chamorro, Celia, Mora-Barrantes, Irene, Rodríguez, Andrés, González, Luis, Valentín, Juan L

    Published in Polymer international (01-06-2013)
    “…A step forward in the understanding of rubber vulcanization with organic peroxides is provided by combining a proper arrangement between polymer, vulcanizing…”
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  9. 9

    New Silica/Polymer Coupling by the Use of Cation–π Interactions by Bernal-Ortega, Pilar, Anyszka, Rafal, Gojzewski, Hubert, di Ronza, Raffaele, Aurisicchio, Claudia, L Valentín, Juan, M Salamanca, Fernando, Blume, Anke

    “…Silica-filled styrene–butadiene rubber (SBR) compounds are state-of-the-art materials to produce tire treads. This is based on their good dynamic mechanical…”
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  10. 10
  11. 11

    Influence of the vulcanization system on the dynamics and structure of natural rubber: Comparative study by means of broadband dielectric spectroscopy and solid-state NMR spectroscopy by Hernández, Marianella, Valentín, Juan L., López-Manchado, Miguel A., Ezquerra, Tiberio A.

    Published in European polymer journal (01-07-2015)
    “…[Display omitted] •NR dynamics is affected by crosslinks and inhomogeneities at different length scale.•Sulfur systems feature restricted segmental dynamics…”
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  12. 12

    Shape-Memory Composites Based on Ionic Elastomers by González-Jiménez, Antonio, Bernal-Ortega, Pilar, Salamanca, Fernando M, Valentin, Juan L

    Published in Polymers (18-03-2022)
    “…Shape-memory polymers tend to present rigid behavior at ambient temperature, being unable to deform in this state. To obtain soft shape-memory elastomers,…”
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  13. 13

    Crosslinked networks in electron beam irradiated polyethylenes evaluated by proton low-field NMR spectroscopy by Posadas, Pilar, Valentín, Juan L., Benavente, Rosario, Blázquez-Blázquez, Enrique, Urtiaga, Ane, Álvarez, Juan A., Cerrada, María L.

    “…Effect of electron beam (EB) irradiation is analyzed in low and high density polyethylenes (LDPE and HDPE, respectively) at different doses. Parameters as…”
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  14. 14

    Obtention of biocompatible hydrogels containing PEGs/silicon fatty blocks with potential use as A controlled release system by Andrade-Acuña, Daniela, Sanchez, Susana A., González-Jiménez, Antonio, Valentin, Juan L., Marcos-Fernández, Ángel, Dahrouch, Mohamed

    Published in Reactive & functional polymers (01-04-2022)
    “…Novel crosslinked polyesters were designed to obtain hydrogels friendly with the environment and able to display potential biologic applications. Through…”
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  15. 15

    Chain Dynamics and Strain-Induced Crystallization of Pre- and Postvulcanized Natural Rubber Latex Using Proton Multiple Quantum NMR and Uniaxial Deformation by in Situ Synchrotron X‑ray Diffraction by Che, Justin, Toki, Shigeyuki, Valentin, Juan L, Brasero, Justo, Nimpaiboon, Adun, Rong, Lixia, Hsiao, Benjamin S

    Published in Macromolecules (28-08-2012)
    “…The structural development and morphology in unvulcanized and vulcanized (both pre- and postvulcanized) natural rubber latex were studied in a relaxed state…”
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  16. 16

    Novel Approach of Evaluating Polymer Nanocomposite Structure by Measurements of the Freezing-Point Depression by López-Manchado, Miguel A., Valentín, Juan L., Herrero, Berta, Arroyo, Miguel

    Published in Macromolecular rapid communications. (21-07-2004)
    “…A novel experimental approach based on the freezing‐point depression of a solvent in a swollen gel has been developed to characterize the structure of…”
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  17. 17