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Characterization Of Octadecyltrichlorosilane Self-Assembled Multilayers On Pyrex Glass

Author

Listed:
  • TINGTING HONG

    (School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China)

  • HUAJUN SUN

    (School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China2Advanced Ceramics Institute of Zibo New, & High-Tech Industrial Development Zone, Zibo 255000, P. R. China)

  • XIAOFANG LIU

    (School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, P. R. China)

  • HUITING SUI

    (Advanced Ceramics Institute of Zibo New, & High-Tech Industrial Development Zone, Zibo 255000, P. R. China)

  • YONG ZHANG

    (School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China)

  • PENGDONG LIU

    (School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China)

  • YONG RUAN

    (Collaborative Innovation Center for Micro/Nano Fabrication, Device and System, State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, P. R. China)

Abstract

In this paper, octadecyltrichlorosilane (OTS) self-assembled multilayer (SAM) films are fabricated on Pyrex glass by dipping method. The hydrophobicity, constituent and surface morphology of OTS SAM at various dipping times in solutions of 1, 2 and 5mM concentrations are investigated. Characteristic absorption peaks around 2850 and 2920cm−1 are observed by FTIR and island-like structures on samples are detected by AFM. After 15min dipping time for solution of 5mM, water contact angle of the sample reaches the maximum value of 116.4∘ with relatively low surface root mean square (Rms) roughness of 0.152nm. The critical surface tension (γc) of the analyzed sample is 18.2dyne/cm. The optimum dipping time in the solution of 5mM for a complete SAM film is about 30min. The study of the optimal conditions for the formation of integrated OTS SAM has significant scientific and practical values in modification of solid surfaces.

Suggested Citation

  • Tingting Hong & Huajun Sun & Xiaofang Liu & Huiting Sui & Yong Zhang & Pengdong Liu & Yong Ruan, 2018. "Characterization Of Octadecyltrichlorosilane Self-Assembled Multilayers On Pyrex Glass," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 25(05), pages 1-6, July.
    • Handle: RePEc:wsi:srlxxx:v:25:y:2018:i:05:n:s0218625x18501056
    DOI: 10.1142/S0218625X18501056
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