New insight into the melting behavior of nanoconfined semicrystalline polymers -The effect of an immobile interfacial layer at the substrate-

ORAL

Abstract

It is known that when semicrystalline polymer chains are confined on a nanometer length scale, the crystalline structures and dynamics differ from bulks, the so-called ``nanoconfinement effects.'' In this talk, we will report the anomalous melting behavior of nano-confined polyethylene spin cast films prepared on Si substrates by integrating various in-situ grazing incidence scattering techniques. We found that a very thin adsorbed layer at the weakly interactive substrate interface plays a crucial role in the melting behavior.

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Authors

  • Mitsunori Asada

    • Kuraray Co., Ltd.

  • Naisheng Jiang

    • Depertment of Materials Science and Engineering, Stony Brook University

  • Peter Gin

    • Depertment of Materials Science and Engineering, Stony Brook University

  • Levent Sendogdular

    • Depertment of Materials Science and Engineering, Stony Brook University

  • Maya K. Endoh

    • Depertment of Materials Science and Engineering, Stony Brook University

  • Moriya Kikuchi

    • Japan Science Technology Agency, ERATO, Takahara Soft Interfaces

  • Atsushi Takahara

    • Japan Science Technology Agency, ERATO, Takahara Soft Interfaces, Graduate School of Engineering, Kyushu University

  • Tadanori Koga

    • Depertment of Materials Science and Engineering, Stony Brook University, Chemical and Molecular Engineering Program, Stony Brook University