Study of Onsets of Tethered Chain Overcrowding and Highly Stretched Regime of Brushes via Crystalline-Amorphous Diblock Copolymers

ORAL

Abstract

Well-controlled tethered polymer chains can be obtained from the solution grown single crystals of crystalline-amorphous diblock copolymers (such as PS-b-PEO and PS-b-PLLA). Based on the thickness-crystallization temperature relation, the interaction between the tethered polymer chains can be measured. The onset of chain was found as a first-order like transition at reduced tethering density near 3.7-3.8, and the onset of highly stretched brush regime was found as a high-order like transition at reduced tethering density near 15.

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Authors

  • Joseph X. Zheng

  • Huiming Xiong

  • KyungMin Lee

    • Maurice Morton Institute and Department of Polymer Science, The University of Akron

  • Christopher Y. Li

    • Department of Materials Science and Engineering, Drexel University

  • Lei Zhu

    • Polymer Program, Institute of Materials Science and Department of Chemical Engineering, The University of Connecticut

  • Ping Huang

  • Ya Guo

  • Qing Ge

  • Roderic P. Quirk

    • Maurice Morton Institute and Department of Polymer Science, The University of Akron

  • Bernard Lotz

    • Institut of Charles Sadron, France

  • Edwin L. Thomas

    • Department of Materials Science and Engineering, MIT

  • Stephen Z.D. Cheng

    • Maurice Morton Institute and Department of Polymer Science, The University of Akron