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A Templateless Electropolymerization Approach to Nanorings Using Substituted 3,4‐Naphthalenedioxythiophene (NaPhDOT) Monomers
Author(s) -
Gbilimou André,
Darmanin Thierry,
Godeau Guilhem,
Guittard Frédéric
Publication year - 2018
Publication title -
chemnanomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.947
H-Index - 32
ISSN - 2199-692X
DOI - 10.1002/cnma.201700269
Subject(s) - naphthalene , monomer , nucleation , materials science , alkyl , nanotechnology , template , polymer , chemical engineering , porosity , chemical physics , chemistry , organic chemistry , composite material , engineering
The formation of highly ordered surface structures is fundamental for various applications. Due to their rapidity of implementation and their cost, templateless processes are extremely interesting alternatives to the use of templates or lithographic processes. With the aim to prepare porous structures such as nanotubes, templateless electropolymerization was found to be a unique process. Based on previous works, we have synthesized 3,4‐naphthalenedioxythiophene (NaPhDOT) monomers substituted with alkyl chains (n=2 to 10), phenyl and naphthalene substituents. In particular, NaphDOT substituted with naphthalene (NaphDOT−Na) leads for the first time to relatively densely packed nanorings while their internal diameter is controllable with the number of deposition scans. Compared to previous works, which lead to nanotubes from non‐substituted NaphDOT and 3,4‐phenylenedioxythiophene substituted with naphthalene (PheDOT−Na), with NaphDOT−Na we observe a very important decrease in the polymer growth. As a consequence, only the initial peripherical nucleation around the gas bubbles is possible, leading to nanorings, because their growth into nanotubes is impeded by their low conductivity.