Understanding polymer crystallization undergoing zone annealing

ORAL

Abstract

Zone annealing is a process through which a temperature gradient is translated at a set velocity across a polymer sample of interest, differentiating it from other crystallization processes by its inherent directionality. Through the application of the Hermans orientation function to our small-angle X-ray scattering detector patterns, we explore the extent of anisotropy that the process imparts on both the pure polymer and the polymer nanocomposite systems, with a focus on the lamellar orientation for the former and the nanoparticle arrangement for the latter. We also utilize differential scanning calorimetry to quantify the effects that the process has on the crystalline content and the melting temperature of the materials.

*United States Department of Energy, Office of Science
Gates Millennium Scholars Program
Columbia University Soft Matter Grant

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Presenters

  • Alejandro Krauskopf

    • Department of Chemical Engineering, Columbia University

Authors

  • Alejandro Krauskopf

    • Department of Chemical Engineering, Columbia University

  • Andrew Jimenez

    • Columbia Univ
    • Department of Chemical Engineering, Columbia University
    • Chemical Engineering, Columbia University

  • Sanat Kumar

    • Columbia Univ
    • Department of Chemical Engineering, Columbia University
    • Chemical Engineering, Columbia University
    • Columbia University

  • Elizabeth Lewis

    • Department of Polymer Engineering, The University of Akron

  • Bryan Vogt

    • Department of Polymer Engineering, The University of Akron

  • Julia Pribyl

    • Department of Chemistry and Biochemistry, University of South Carolina
    • University of South Carolina

  • Brian C Benicewicz

    • Department of Chemistry and Biochemistry, University of South Carolina
    • Chemistry and Biochemistry, University of South Carolina
    • University of South Carolina