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Researchers from Mines ParisTech Report Findings in Polyenes (Formation of Fractal-like Structure in Organoclay-Based Polypropylene Nanocomposites)

July 4, 2014

By a News Reporter-Staff News Editor at Science Letter -- Researchers detail new data in Polyenes. According to news reporting out of Sophia Antipolis, France, by NewsRx editors, research stated, "We present the structural features of organoclay dispersions in polypropylene melts investigated by shear rheology. Scaling behavior of the nanocomposites linear viscoelastic properties based on apparent yield stress and critical strain measurements enables to assess the fractal dimension cif of the network formed by clay particles within the matrix."

Our news journalists obtained a quote from the research from Mines ParisTech, "The network structure induces a thixotropic behavior which manifests by solid-like behavior accentuation over time under quiescent conditions and sensitivity to large deformation shear flow. Formation kinetics of the fractal-like network structure at rest is discussed through linear and nonlinear rheological investigations."

According to the news editors, the research concluded: "A two-step process is observed for clay network reorganization over annealing time, with pronounced transition around 10(4) s. These phenomena, which picture a nonequilibrium state where interparticle attractions favor disorientation of the platelets and network growth, are strongly coupled to the dispersion state of the organoclay within the polymeric matrix."

For more information on this research see: Formation of Fractal-like Structure in Organoclay-Based Polypropylene Nanocomposites. Macromolecules, 2014;47(10):3417-3427. Macromolecules can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society -; Macromolecules -

Our news journalists report that additional information may be obtained by contacting T. Domenech, MINES ParisTech, CEMEF Center Mise Forme Mat, UMR CNRS 7635, Ecole MinesCS 10207, F-06904 Sophia Antipolis, France. Additional authors for this research include R. Zouari, B. Vergnes and E. Peuvrel-Disdier (see also Polyenes).

Keywords for this news article include: France, Europe, Polyenes, Hydrocarbons, Nanocomposite, Nanotechnology, Polypropylenes, Sophia Antipolis, Organic Chemicals, Emerging Technologies

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Source: Science Letter

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