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  1. No Access

    Article

    A new optical set-up for on-line following up the crystallization of polymers at high cooling rates

    A new experimental procedure, named « Polymer High Cooling - Optics » and whose performance has been improved, is presented. It allows us to monitor on-line the quiescent crystallization of a polymer film unde...

    S. Becker, M. Brisebourg, S. A. E. Boyer in International Journal of Material Forming (2009)

  2. No Access

    Article

    Crystallization of polypropylene at high cooling rates

    In the context of polymer crystallization under high and constant cooling rates, a new survey is presented. The growth kinetics of spherulites from the molten state and the corresponding temperature of crystal...

    J. M. Haudin, S. A. E. Boyer in International Journal of Material Forming (2009)

  3. No Access

    Article

    Polymer Microstructures: Modification and Characterization by Fluid Sorption

    Polymer micro-organization can be modified by a combination of three constraints, thermal, hydrostatic, and fluid sorption. In selecting the fluid’s nature, chemically active or inert, and its physical state, ...

    S. A. E. Boyer, M. Baba, J. -M. Nedelec… in International Journal of Thermophysics (2008)

  4. No Access

    Article

    How to determine the parameters of polymer crystallization for modeling the injection-molding process?

    To understand the relationship between ‘polymers-processing conditions-structures-properties’, crystallization is one of the major concerned phenomena. A general crystallization model derived from Avrami’s wor...

    S. A. E. Boyer, L. Silva, M. Gicquel… in International Journal of Material Forming (2008)

  5. No Access

    Article

    Crystallization kinetics of polypropylenes. Effect of nucleating agents?

    Thermal conditions and formulation affect the crystallization mechanisms of polymers and the associated kinetics in a coupled manner. In that field, the objective of this investigation is to compare overall cr...

    S. A. E. Boyer, N. Billon, J.-M. Haudin in International Journal of Material Forming (2008)

  6. No Access

    Article

    Effects of CO2 pressure on isotropic transition of amphiphilic side-chain type liquid crystalline di-block copolymers

    The effects of high pressure carbon dioxide (CO2) on the isotropic transition of three different amphiphilic di-block copolymers, PEOm-b-PMA(Az)n, namely PEO114-b-PMA(Az)40, PEO272-b-PMA(Az)46 and PEO454-b-PMA(Az...

    T. Yamada, S. A. E. Boyer, T. Iyoda… in Journal of Thermal Analysis and Calorimetry (2007)

  7. No Access

    Article

    Isotropic transition of amphiphilic side-chain type liquid crystalline di-block copolymers

    The effects of nitrogen (N2) pressure on amphiphilic di-block copolymer, PEO114-b-PMA(Az)40, were investigated by scanning transitiometry. The isotropic transition temperature increased with the increase of press...

    T. Yamada, S. A. E. Boyer, T. Iyoda… in Journal of Thermal Analysis and Calorimetry (2007)

  8. No Access

    Article

    Isotropic transition behaviour of an amphiphilic di-block copolymer under pressure

    The present work deals with the interactions between carbon dioxide, used as pressure medium, either in the gas state (GCO2) or in the supercritical state (SCCO2) and amphiphilic di-block copolymers PEOm-b-PMA(Az...

    S. A. E. Boyer, J-P. E. Grolier, L. Pison… in Journal of Thermal Analysis and Calorimetry (2006)

  9. No Access

    Article

    The Use of Scanning Transitiometry to Investigate Thermodynamic Properties of Polymeric Systems over Extended T and p Ranges

    Scanning transitiometry is a newly developed technique in which one of the independent variables (p,V, or T) is scanned in the working cell of a very sensitive calorimeter while the other independent variable is ...

    J.-P. E. Grolier, F. Dan, S. A. E. Boyer… in International Journal of Thermophysics (2004)