Highly Polar Linkers (Urea, Carbamate, Thiocarbamate) for Superoleophobic/Superhydrophobic or Oleophobic/Hydrophilic Properties. Issue 10 (12th May 2015)

• Record Type: Journal Article
• Authors: Darmanin, Thierry; Guittard, Frédéric
• Is Part Of: Advanced materials interfaces. Volume 2:Issue 10(2015)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2015-05-12
• Subjects: Materials science -- Periodicals; 620.11
• DOI: 10.1002/admi.201500081
• Languages: English
• ISSNs: 2196-7350

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Due to the much lower surface tension of oils in comparison to water, it is extremely difficult to obtain superoleophobic properties and also both oleophobic and hydrophilic properties. While the obtaining of superoleophobic properties needs extremely complex surface structures such as reentrant structures to impede the oil wetting, the obtaining of both oleophobic and hydrophilic properties needs the use of both oleophobic materials (fluorinated materials) and hydrophilic materials (charged or polar species). Here, by electropolymerization of original 3, 4‐ethylenedioxythiophene derivatives containing both fluorinated chains (C₈F₁₇, C₆F₁₃, or C₄F₉) and highly polar linkers (thiocarbamate SCONH, carbamate OCONH, and urea NHCONH), the possibility to obtain superoleophobic properties and also both oleophobic and hydrophilic properties is reported for the first time. More precisely superoleophobic properties are obtained with different fluorinated chain lengths and linkers while the obtaining of both oleophobic and hydrophilic properties is possible only with the most polar urea NHCONH linkers.</p> </abstract>