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Role of substrate type in the process of polyelectrolyte multilayer formation
ID Mesić, Mia (Author), ID Klačić, Tin (Author), ID Abram, Anže (Author), ID Bohinc, Klemen (Author), ID Kovačević, Davor (Author)

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Abstract
Polyelectrolyte multilayers are coatings formed by the alternate deposition of polycations and polyanions on a charged surface. In this study we examined how the type of substrate affects a multilayer prepared from poly(allylamine hydrochloride) and poly(acrylic acid). Silicon and titanium wafers were used as substrates. Their properties were systematically studied using ellipsometry, tensiometry, atomic force microscopy and streaming potential measurements. Multilayers were built up at pH = 7 with tetramethylammonium chloride as the background salt. The growth of films was monitored by ellipsometry, while the morphology and surface roughness were determined by atomic force microscopy. It was found that the thickness of multilayers containing 10 layers on silicon is 10 nm, whereas the thickness of the same film on titanium is three times higher. It was shown that multilayers formed on silicon display a grain-like structure, which was not the case for a film formed on titanium. Such morphological properties are also reflected in the surface roughness. Finally, it was shown that, in addition to the electrostatic interactions, the hydrophobicity of the substrate also plays an important role in the polyelectrolyte multilayer formation process and influences its thickness and properties.

Language:English
Keywords:polyelectrolyte multilayers, silicon, titanium, AFM, tensiometry, ellipsometry, streaming potential
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:ZF - Faculty of Health Sciences
Publication status:Published
Publication version:Version of Record
Publication date:01.06.2022
Year:2022
Number of pages:15 str
Numbering:Vol. 14, iss. 13, art. 2566
PID:20.500.12556/RUL-138063 This link opens in a new window
UDC:544.6.018.47-036.5
ISSN on article:2073-4360
DOI:10.3390/polym14132566 This link opens in a new window
COBISS.SI-ID:114638851 This link opens in a new window
Publication date in RUL:08.07.2022
Views:428
Downloads:92
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Record is a part of a journal

Title:Polymers
Shortened title:Polymers
Publisher:Molecular Diversity Preservation International
ISSN:2073-4360
COBISS.SI-ID:517951257 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:08.07.2022

Secondary language

Language:Undetermined
Keywords:polielektrolitne večplastne plasti, silicij, titan, AFM, tenziometrija, elipsometrija, pretočni potencial

Projects

Funder:Drugi - Drug financer ali več financerjev
Funding programme:Croatian Science Foundation
Project number:IPS-2020-01-6126

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Funding programme:P3-0388
Project number:J7-2595
Name:Modulacija polifenolnega profila v sadju s trajnostnimi fizikalnimi poobiralnimi postopki

Funder:Drugi - Drug financer ali več financerjev
Funding programme:European Regional Development Fund, Research and Development Programmes (TRL 3-6), Programme: ‘Sustainable and innovative construction of smart buildings – TIGR4smart’ (C3330-16-529003).
Project number:KK.01.1.1.02.0016
Acronym:CluK

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