Pregled bibliografske jedinice broj: 1165471
Controlling the properties of poly(allylamine hydrochloride)/poly(acrylic acid) ultrathin multilayer films by varying the supporting anion
Controlling the properties of poly(allylamine hydrochloride)/poly(acrylic acid) ultrathin multilayer films by varying the supporting anion // 27th Croatian Meeting of Chemists and Chemical Engineers and 5th Symposium Vladimir Prelog : Book of Abstracts / Marković, Dean ; Meštrović, Ernest ; Namjesnik, Danijel ; Tomašić, Vesna (ur.).
Zagreb: Hrvatsko kemijsko društvo, 2021. str. 162-162 (poster, domaća recenzija, sažetak, znanstveni)
CROSBI ID: 1165471 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Controlling the properties of poly(allylamine
hydrochloride)/poly(acrylic acid) ultrathin
multilayer films by varying the supporting anion
Autori
Klačić, Tin ; Bohinc, Klemen ; Kovačević, Davor
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
27th Croatian Meeting of Chemists and Chemical Engineers and 5th Symposium Vladimir Prelog : Book of Abstracts
/ Marković, Dean ; Meštrović, Ernest ; Namjesnik, Danijel ; Tomašić, Vesna - Zagreb : Hrvatsko kemijsko društvo, 2021, 162-162
Skup
27. hrvatski skup kemičara i kemijskih inženjera (27HSKIKI)
Mjesto i datum
Veli Lošinj, Hrvatska, 05.10.2021. - 08.10.2021
Vrsta sudjelovanja
Poster
Vrsta recenzije
Domaća recenzija
Ključne riječi
Polyelectrolytes ; polyelectrolyte multilayers ; Ion specific effects
(Polyelectrolytes ; Polyelectrolyte multilayers ; Ion specific effects)
Sažetak
Polyelectrolytes are macromolecules (e.g. polymers) with dissociating functional groups which can carry positive or negative charge in solution. By alternating adsorption of positively and negatively charged polyelectrolytes on a charged surface, polyelectrolyte multilayers are formed. These nanocomposites have interesting properties and are applied in various scientific fields, mainly in biomedicine and pharmacology. In this study, ultrathin films have been fabricated on silicon wafers from layer-by-layer assembled poly(allylamine hydrochloride), PAH and poly(acrylic acid), PAA. Ellipsometry, tensiometry, and atomic force microscopy were used to investigate the influence of the supporting sodium salt of polyelectrolyte solutions on the build-up and properties of PAH/PAA multilayer. It was found that the properties of prepared PAH/PAA multilayers follow the Hofmeister series. Thus, film thickness, hydrophobicity, and surface roughness increase in the order fluoride < chloride < perchlorate. These results confirm that solely by choosing the electrolyte type, polyelectrolyte multilayers with various structures and properties can be obtained.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Projekti:
HRZZ-IPS-2020-01-6126 - Modulacija polifenolnog profila voća uslijed fizikalnih tretmana nakon branja (Kovačević, Davor, HRZZ - 2020-01) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb
