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    • Livre
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    Hommage à Gabriel Lucas

    Lang, Jacques, Lucas, Gabriel
    Dijon : Institut des sciences de la terre
    1982
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    Titre: Hommage à Gabriel Lucas / coordinateur Jacques Lang
    Auteur: Lang, Jacques; Lucas, Gabriel
    Editeur: Dijon : Institut des sciences de la terre
    Date: 1982
    Collation: VII, 515 p. : ill. ; 30 cm
    Collection: Mémoires géologiques de l'Université de Dijon ; 7
    Documents dans cette collection: Mémoires géologiques de l'Université de Dijon
    Sujet RERO: Sédimentologie - Lucas, Gabriel
    Sujet RERO - forme: [Études diverses]
    Note: La couverture porte en plus : Géologie sédimentaire : milieu de sédimentation, pétrographie sédimentaire et pédologie, paléontologie et paléoécologie, stratigraphie, paléographie et géodynamique - La couverture porte en tête du titre : Livre jubilaire Gabriel Lucas
    No RERO: 1130052
    Permalien:
    http://data.rero.ch/01-1130052/html?view=GE_V1

    • Film
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    Mort d'une girafe

    Lang, Jacques, Tessier, Danièle
    France : Argos Films
    1970
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    Titre: Mort d'une girafe / Danièle Tessier et Jacques Lang
    Auteur: Lang, Jacques; Tessier, Danièle
    Editeur: France : Argos Films
    Date: 1970
    Collation: 1 DVD-vidéo (12 min) : couleur
    No RERO: R008774669
    Permalien:
    http://data.rero.ch/01-R008774669/html?view=GE_V1

    • Article
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    Internal Structure of Core−Shell Latex Particles Studied by Fluorescence Nonradiative Energy Transfer

    Pérez, Elías, Lang, Jacques
    Langmuir, 01/1996, Vol.12(13), pp.3180-3187 [Revue évaluée par les pairs]
    American Chemical Society (via CrossRef)
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    Titre: Internal Structure of Core−Shell Latex Particles Studied by Fluorescence Nonradiative Energy Transfer
    Auteur: Pérez, Elías; Lang, Jacques
    Sujet: Chemistry;
    Description: Latex particles have been synthesized in two-steps emulsion polymerizations under starving conditions, and the internal structure of these particles has been investigated by fluorescence nonradiative energy transfer (NRET), in order to check for the formation of core−shell particles. The polymers were based on methyl methacrylate (MMA) and butyl methacrylate (BMA) as monomers. The energy donor monomer was introduced during the first step of the polymerization, and the energy acceptor monomer during the second step. The T g of PBMA is too low, compared to the polymerization temperature T p (T p = 80 °C), to observe a separation between the donor- and acceptor-labeled PBMA chains inside the particles. On the contrary the T g of PMMA is larger than T p, and a separation between energy donor- and energy acceptor-labeled PMMA chains is observed with this polymer. The separation has the structure of a diffuse interface between the two labeled PMMA polymers. The study of other particles...
    Fait partie de: Langmuir, 01/1996, Vol.12(13), pp.3180-3187
    Identifiant: 0743-7463 (ISSN); 1520-5827 (E-ISSN); http (DOI)

    • Article
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    Flattening of Latex Film Surface and Polymer Chain Diffusion

    Pérez, Elías, Lang, Jacques
    Langmuir, 02/2000, Vol.16(4), pp.1874-1881 [Revue évaluée par les pairs]
    American Chemical Society (via CrossRef)
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    Titre: Flattening of Latex Film Surface and Polymer Chain Diffusion
    Auteur: Pérez, Elías; Lang, Jacques
    Sujet: Chemistry;
    Description: The extent of flattening of poly(butyl methacrylate) (PBMA) latex film surfaces was determined using the atomic force microscopy (AFM) technique and compared with the extent of polymer chain migration between adjacent particles in the film, which was determined by the nonradiative energy transfer (NRET) method. The film surface flattening was faster than the total chain migration between adjacent particles. This result indicates that the total chain migration between adjacent particles is not necessary for a complete flattening of latex film surfaces. In addition, we found that polymer chain movement inside the individual particles is necessary for latex film flattening to occur. AFM was used to compare the rate of film flattening for cross-linked and non−cross-linked PBMA and poly(methyl methacrylate) (PMMA) particles. The cross-linking of the polymer chain in the particles inhibits flattening or decreases its rate considerably. The internal viscosity of the particles is then...
    Fait partie de: Langmuir, 02/2000, Vol.16(4), pp.1874-1881
    Identifiant: 0743-7463 (ISSN); 1520-5827 (E-ISSN); http (DOI)

    • Article
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    Film Formation from Dispersion of Core-Shell Latex Particles

    Juhue, Didier, Lang, Jacques
    Macromolecules, 07/1995, Vol.28(4), pp.1306-1308 [Revue évaluée par les pairs]
    American Chemical Society (via CrossRef)
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    Titre: Film Formation from Dispersion of Core-Shell Latex Particles
    Auteur: Juhue, Didier; Lang, Jacques
    Sujet: Chemistry;
    Fait partie de: Macromolecules, 07/1995, Vol.28(4), pp.1306-1308
    Identifiant: 0024-9297 (ISSN); 1520-5835 (E-ISSN); http (DOI)

    • Article
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    Flattening of Latex Film Surface:  Theory and Experiments by Atomic Force Microscopy

    Pérez, Elías, Lang, Jacques
    Macromolecules, 03/1999, Vol.32(5), pp.1626-1636 [Revue évaluée par les pairs]
    American Chemical Society (via CrossRef)
    Disponible
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    Titre: Flattening of Latex Film Surface:  Theory and Experiments by Atomic Force Microscopy
    Auteur: Pérez, Elías; Lang, Jacques
    Sujet: Chemistry;
    Description: A model is proposed to describe the flattening of latex film surfaces when the film is annealed for various periods of time above the glass-transition temperature, T g, of the polymer. This model is based on the excess pressure produced by the curvature of the particles on the film surface, which acts as driving force in surface film flattening, and the polymer stress growth viscosity, μ(t), which is the resistance to particle deformation and acts against surface film flattening. To test the model, surfactant-free poly(butyl methacrylate) (PBMA) latexes were synthesized. Dry films were annealed at 70 °C, i.e., about 35 °C above the PBMA T g, for various periods of time, and for each annealing time the film roughness was measured by atomic force microscopy (AFM). The decrease of the film roughness versus annealing time measured by AFM is compared to the decrease predicted from the model. The model is also compared to data obtained with latex particles stabilized with sodium dodecyl...
    Fait partie de: Macromolecules, 03/1999, Vol.32(5), pp.1626-1636
    Identifiant: 0024-9297 (ISSN); 1520-5835 (E-ISSN); http (DOI)

    • Article
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    An Inversion Method for the Determination of the Internal Structure of Latex Particles from Fluorescence Nonradiative Energy Transfer Experiment

    Pérez, Elías, Lang, Jacques
    The Journal of Physical Chemistry B, 03/1999, Vol.103(12), pp.2072-2084 [Revue évaluée par les pairs]
    American Chemical Society (via CrossRef)
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    Titre: An Inversion Method for the Determination of the Internal Structure of Latex Particles from Fluorescence Nonradiative Energy Transfer Experiment
    Auteur: Pérez, Elías; Lang, Jacques
    Sujet: Chemistry;
    Description: A method is presented for the determination of the internal structure of core−shell latex particles from fluorescence nonradiative energy transfer between a donor and an acceptor chemically bonded to the polymer chains which are supposed to form the core (donor) and the shell (acceptor) of the particles. The method is based on the assumption that these two types of polymer chains are radially distributed inside the particles. The distributions of the polymer labeled with the donor and with the acceptor are directly obtained from the analysis of the fluorescence decay curve of the donor, using a least-squares method coupled with a regularization condition, given the so-called regularization technique of inversion. In the inversion method there is no model and no analytical expression used to describe the concentration profiles of the polymers. We show how this method was tested with known polymer concentration profiles, from which fluorescence decay curves were first constructed...
    Fait partie de: The Journal of Physical Chemistry B, 03/1999, Vol.103(12), pp.2072-2084
    Identifiant: 1520-6106 (ISSN); 1520-5207 (E-ISSN); http (DOI)

    • Article
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    Reply to Comment on the “Effect of Addition of Water Soluble Polymers in Water-in-Oil Microemulsions Made with Anionic and Cationic Surfactants”

    Lang, Jacques
    The Journal of Physical Chemistry, 01/1996, Vol.100(12), pp.5156-5156
    American Chemical Society (via CrossRef)
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    Titre: Reply to Comment on the “Effect of Addition of Water Soluble Polymers in Water-in-Oil Microemulsions Made with Anionic and Cationic Surfactants”
    Auteur: Lang, Jacques
    Sujet: Chemistry;
    Fait partie de: The Journal of Physical Chemistry, 01/1996, Vol.100(12), pp.5156-5156
    Identifiant: 0022-3654 (ISSN); 1541-5740 (E-ISSN); http (DOI)

    • Article
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    Effect of surfactant postadded to latex dispersion on film formation: a study by atomic force microscopy

    Juhue, Didier, Lang, Jacques
    Langmuir, 03/1993, Vol.9(3), pp.792-796 [Revue évaluée par les pairs]
    American Chemical Society (via CrossRef)
    Disponible
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    Titre: Effect of surfactant postadded to latex dispersion on film formation: a study by atomic force microscopy
    Auteur: Juhue, Didier; Lang, Jacques
    Sujet: Chemistry;
    Fait partie de: Langmuir, 03/1993, Vol.9(3), pp.792-796
    Identifiant: 0743-7463 (ISSN); 1520-5827 (E-ISSN); http (DOI)

    • Plusieurs versions

    Encapsulation of Inorganic Particles by Dispersion Polymerization in Polar Media: 2. Effect of Silica Size and Concentration on the Morphology of Silica–Polystyrene Composite Particles

    Bourgeat-Lami, Elodie, Lang, Jacques
    Journal of Colloid And Interface Science, 15 February 1999, Vol.210(2), pp.281-289 [Revue évaluée par les pairs]