Cross-Linked Polyelectrolyte Multilayers for Marine Antifouling Applications
Xiaoying Zhu , Dominik Jańczewski , Serina Siew Chen Lee , Serena Lay-Ming Teo , G. Julius Vancso
AbstractA polyionic multilayer film was fabricated by layer-by-layer (LbL) sequential deposition followed by cross-linking under mild conditions on a substrate surface to inhibit marine fouling. A novel polyanion, featuring methyl ester groups for an easy cross-linking was used as a generic solution for stabilization of LbL films in a harsh environment. Covalent cross-linking was confirmed by FTIR and XPS spectroscopy. AFM was used to observe film morphology and its variation because of cross-linking, as well as to measure the thickness of the LbL films. Cross-linking improved the stability of the LbL film when it was immersed in artificial seawater, natural seawater, and in a polar organic solvent (DMSO). No changes in the thickness and topography of the film were observed in these media. The LbL films prevented settlement of Amphibalanus amphitrite barnacle cyprids and reduced adhesion of the benthic diatom Amphora coffeaeformis. Assay results indicated that the cross-linking process did not weaken the antifouling effect of LbL films. The high stability and low degree of fouling make these coatings potentially promising candidates in marine applications.
|Journal series||ACS Applied Materials & Interfaces, ISSN 1944-8244|
|Publication size in sheets||0.5|
|Keywords in English||marine fouling, polyelectrolyte, layer by layer assembly, covalent cross-linking|
|Score|| = 40.0, 31-01-2020, ArticleFromJournal|
= 40.0, 31-01-2020, ArticleFromJournal
|Publication indicators||= 65; = 61; : 2013 = 1.545; : 2013 = 5.9 (2) - 2013=5.908 (5)|
|Citation count*||17 (2015-04-21)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.