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Novel Biomembrane-Mimicking Polymer Surface with Environmental Responsiveness

Authors

  • Hong Tan,

    1. College of Polymer Science and Engineering, Sichuan University, State key Laboratory of Polymer Materials Engineering, Chengdu 610065, China
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  • Taolei Sun,

    1. Institute of Chemistry, Chinese Academy of Science, Beijing 100080, China
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  • Jiehua Li,

    1. College of Polymer Science and Engineering, Sichuan University, State key Laboratory of Polymer Materials Engineering, Chengdu 610065, China
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  • Min Guo,

    1. College of Polymer Science and Engineering, Sichuan University, State key Laboratory of Polymer Materials Engineering, Chengdu 610065, China
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  • Xingyi Xie,

    1. College of Polymer Science and Engineering, Sichuan University, State key Laboratory of Polymer Materials Engineering, Chengdu 610065, China
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  • Yinping Zhong,

    1. College of Polymer Science and Engineering, Sichuan University, State key Laboratory of Polymer Materials Engineering, Chengdu 610065, China
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  • Qiang Fu,

    Corresponding author
    1. College of Polymer Science and Engineering, Sichuan University, State key Laboratory of Polymer Materials Engineering, Chengdu 610065, China
    • College of Polymer Science and Engineering, Sichuan University, State key Laboratory of Polymer Materials Engineering, Chengdu 610065, China. Fax: 0086-28-85405402
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  • Lei Jiang

    Corresponding author
    1. Institute of Chemistry, Chinese Academy of Science, Beijing 100080, China
    • Institute of Chemistry, Chinese Academy of Science, Beijing 100080, China.
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Abstract

Summary: In this article, we designed and synthesized novel segmented poly(carbonate urethane)s containing both hydrophobic fluorinated alkyl group and hydrophilic phosphatidylcholine polar head groups on the side chain. The contact angle measurement, XPS, together with ATR-IR investigation indicated a reversible overturn of the phosphatidylcholine groups with the movement of the hydrophobic fluorinated alkyl groups when the samples were treated in dry air or water. The change in environment from air to water induced a reorganization of the surface in order to minimize the interfacial free energy, resulting in a macroscopic change of surface wettability. The good environmental responsiveness of such biomembrane-mimicking films may find successful applications as biomaterials.

original image

Environmentally responsive surface using FPCPCU50 as an example; FPCPCU50 coated on aligned carbon nanotube film and dried in vacuum at 50 °C for 7 h and sample c treated in hot water at 80 °C for 1 h.

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