2015
Layer-by-layer assembly of thin organic films on PTFE activated by cold atmospheric plasma
TÓTH, Andras; Klára SZENTMIHÁLYI; Zsófia KERESZTES; Imola SZIGYÁRTÓ; Dušan KOVÁČIK et al.Základní údaje
Originální název
Layer-by-layer assembly of thin organic films on PTFE activated by cold atmospheric plasma
Autoři
TÓTH, Andras; Klára SZENTMIHÁLYI; Zsófia KERESZTES; Imola SZIGYÁRTÓ; Dušan KOVÁČIK; Mirko ČERNÁK a Kinga KUTASI
Vydání
Open chemistry, Warsaw, DE GRUYTER OPEN LTD, 2015, 2391-5420
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10400 1.4 Chemical sciences
Stát vydavatele
Polsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/15:00112265
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
DCSBD plasma; Polytetrafluoroethylene surface; Polyvinylpyrrolidone and tannic acid layers; ATR-FTIR; XPS; AFM
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 11. 5. 2020 10:34, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
An air diffuse coplanar surface barrier discharge is used to activate the surface of polytetrafluoroethylene (PTFE) samples, which are subsequently coated with polyvinylpyrrolidone (PVP) and tannic acid (TAN) single, bi- and multilayers, respectively, using the dip-coating method. The surfaces are characterized by X-ray Photoelectron Spectroscopy (XPS), Attenuated Total Reflection - Fourier Transform Infrared Spectroscopy (ATR-FTIR) and Atomic Force Microscopy (AFM). The XPS measurements show that with plasma treatment the F/C atomic ratio in the PTFE surface decreases, due to the diminution of the concentration of CF2 moieties, and also oxygen incorporation through formation of new C-O, C=O and O=C-O bonds can be observed. In the case of coated samples, the new bonds indicated by XPS show the bonding between the organic layer and the surface, and thus the stability of layers, while the gradual decrease of the concentration of F atoms with the number of deposited layers proves the creation of PVP/TAN bi- and multi-layers. According to the ATR-FTIR spectra, in the case of PVP/TAN multilayer hydrogen bonding develops between the PVP and TAN, which assures the stability of the multilayer. The AFM lateral friction measurements show that the macromolecular layers homogeneously coat the plasma treated PTFE surface.