Tuning nanotubular structures by templateless electropolymerization with thieno[3,4-b]thiophene-based monomers with different substituents and water content

JOURNAL OF COLLOID AND INTERFACE SCIENCE

卷:564

Article

Khodja, Maroua¹  El Kateb, Mejda¹  Beji, Mohammed¹  Guittard, Frederic^2,3  Darmanin, Thierry² 

[1] Univ Tunis El Manar, Fac Sci Tunis, Lab Struct Organ Chem, Tunis 2092, Tunisia

[2] Univ Cote Azur, Nice Lab, F-06200 Nice, France

[3] Univ Calif Riverside, Dept Bioengn, Riverside, CA 92521 USA

关键词: Nanotubes;    Nanostructures;    Electrochemistry;    Conducting polymers;    Wettability;   

DOI  :  10.1016/j.jcis.2019.12.099

来源: Elsevier

【 摘 要 】

Here, templateless electropolymerization is employed to produce nanotubular structures from various thieno[3,4-b]thiophene-based monomers that differ in substituent structure and size, as well as the linker connecting the thieno[3,4-b]thiophene core and substituent. The formation of densely packed vertically aligned are obtained from monomers with a pyrene substituent and when a significant amount of water (CH2Cl2 + H2O) is included in the solvent. The geometrical parameters of the nanotubes are highly dependent on the electopolymerization method. A significant amount of air is trapped within the structure of the densely packed open nanotubes obtained with Qs = 100 mC cm(-2) causing an increase in water contact angle (theta(w)) up to 82.6 degrees (intermediate state between the Wenzel and the Cassie-Baxter state), and theta(w) can become even more hydrophobic by further modifying the deposition method or the electrolyte. (C) 2019 Elsevier Inc. All rights reserved.

【 授权许可】

Free