Fluorination Increases Hydrophobicity at the Macroscopic Level but not at the Microscopic Level
نویسندگان
چکیده
Hydrophobic interactions have been studied in detail the past based on hydrophobic polymers, such as polystyrene (PS). Because fluorinated materials relatively low surface energy, they often show both oleophobicity and hydrophobicity at macroscopic level. However, it remains unknown how fluorination of polymer influences microscopic In this work, we synthesized PS fluorine-substituted (FPS) by reversible addition-fragmentation chain transfer polymerization method. Contact angle measurements confirmed that FPS is more than level due to introduction fluorine. single molecule force spectroscopy experiments showed forces required unfold nanoparticles water are indistinguishable, indicating strength ffect drives self-assembly same The divergence effect may hint different underlying mechanisms: dominated solvent hydration surface-associated interaction
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ژورنال
عنوان ژورنال: Chinese Physics Letters
سال: 2022
ISSN: ['0256-307X', '1741-3540']
DOI: https://doi.org/10.1088/0256-307x/39/3/038701