Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 354, Issue 1-3, Pages 234-239Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfa.2009.09.029
Keywords
Wetting; Contact angle; Super water-repellency; Oil-repellency; Poly(alkylpyrrole); Fluorinated polymer
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Funding
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) [16310077]
- Core Research for Evolutional Science and Technology (CREST) of Japan Science and Technology Corporation (JST)
- Grants-in-Aid for Scientific Research [16310077] Funding Source: KAKEN
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Super water- and highly oil-repellent films have been synthesized by electrochemical polymerization of some new monomers of fluorinated alkylpyrroles. The surface roughness of the films was controlled by the polymerization conditions such as concentration of monomers, applied voltages, polymerization time and so on. The contact angles on the most liquid-repellent film surfaces are about 160 degrees and 140 degrees for water and salad oil, respectively. The sliding angle for the salad oil is 9.5 +/- 2.5 degrees which is much better than that on the poly(alkylpyrrole) films coated with a fluorinated aikylsilane coupling agent. Thermal and organic solvent stability for the liquid-repellent property of the films were quite good to be used practically. (C) 2009 Elsevier B.V. All rights reserved.
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