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"Poly(3,4-propylenedioxypyrrole) Nanofibers with Branched Alkyl Chains by Electropolymerization to Obtain Sticky Surfaces with High Contact Angles"

Inspired by natural species such as rose petals or Echeveria pulvinata leaves with both high water contact angle qw and high water adhesion (also called parahydrophobic), we have prepared poly(3,4-propylenedioxypyrrole) with branched alkyl chains on the 3-position by electropolymerization. The grafting at the 3-position keeps the NH group free, which is an important condition to obtain nanofibers. Different lengths of branched alkyl chains are studied are. Here, using extremely long branched alkyl chains (ProDOP-br-C10), it is possible to obtain extremely long and well defined nanofibers leading to porous surfaces (fiber mats) favoring the trapping of air between the surface and water droplets. Using a deposition charge of 200 mC cm2 , extremely high qw up to 1408 while water droplets placed on this surface remained stuck even for a sliding angle of 908. These materials could be used in the future in water harvesting systems.

Auteur(s) : Djibril Diouf, Alioune Diouf, Claudio Mortier, Thierry Darmanin,*, Samba Yande´ Dieng, and Frédéric Guittard
Pages : 1 -6
Année de publication : 2017
Revue : Journal Chemistry Select Europe
N° de volume : 1
Type : Article
Statut Editorial : Xiley Online Library
Mise en ligne par : DIOUF Alioune