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Spreading characteristics of thin liquid films of perfluoropolyalkylethers on solid surfaces. Effects of chain-end functionality and humidity

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Abstract

Spreading characteristics of thin liquid films of perfluoropolyalkyl ethers (PFPE) on silica surfaces and thermally bonded PFPE surfaces have been measured by scanning microellipsometer as function of molecular weight, chain-end functionality, and humidity. The effects of molecular weight are much smaller than those of chain-end functionality. Changes in spreading profiles with time show that interactions of chain-end groups with solid surfaces have dramatic effects on the structure and mobility of thin polymer films on solid surfaces. Wetting autophobicity is clearly manifested by PFPEs with functional chain-end groups on silica surfaces.

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Authors and Affiliations

  1. IBM Research Division, Almaden Research Center, 95120, San Jose, CA, USA

    Byung G. Min, Jeong W. Choi, Hugh R. Brown & Do Y. Yoon

  2. Department of Chemical Engineering, Carnegie Mellon University, 15213, Pittsburgh, PA, USA

    Teresa M. O'Connor & Myung S. Jhon

Authors
  1. Byung G. Min
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  2. Jeong W. Choi
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  3. Hugh R. Brown
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  4. Do Y. Yoon
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  5. Teresa M. O'Connor
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  6. Myung S. Jhon
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Additional information

On leave from Korea Institute of Science and Technology, PO Box 131, Cheongryang, Seoul, Korea.

On leave from Department of Chemical Engineering, Sogang University, Seoul, Korea.

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Min, B.G., Choi, J.W., Brown, H.R. et al. Spreading characteristics of thin liquid films of perfluoropolyalkylethers on solid surfaces. Effects of chain-end functionality and humidity. Tribol Lett 1, 225–232 (1995). https://doi.org/10.1007/BF00209777

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  • DOI: https://doi.org/10.1007/BF00209777

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