Relation between chemical composition of sols and surface free energy of inorganic-organic films

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24510%2F19%3A00006379" target="_blank" >RIV/46747885:24510/19:00006379 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10971-018-4856-y" target="_blank" >http://dx.doi.org/10.1007/s10971-018-4856-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10971-018-4856-y" target="_blank" >10.1007/s10971-018-4856-y</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Relation between chemical composition of sols and surface free energy of inorganic-organic films

Popis výsledku v původním jazyce

The presented study deals with relation between chemical composition of precursor sols and surface free energy of inorganic-organic films. Inorganic-organic films were prepared from precursor sols in “tetraethoxysilane (TEOS) – triethoxy (octyl)silane (OTES) - distilled water - nitric acid - isopropyl alcohol” system. The fifteen sols were prepared, where the ratio of K = x(OTES)/(x(TEOS) x(OTES)) varied from 0 to 0.5 and ratio of R = x(H2O)/(x(TEOS) x(OTES)) varied from 2 to 6. The relationship between chemical composition and surface free energy of inorganic-organic films was quantified by model selection approach. Model, which describes the studied relationship in the best way, was selected on the basis of Akaike information criterion. Based on the analysis of selected (the best describing) model, it was found out that the surface free energy as well as its dispersion and polar component are dependent only on K ratio in observed range of K and R values. Form the physico-chemical aspect, the observed dependences of surface free energy, its dispersive and polar component on chemical composition of precursor sols are explained by the influence of octyl groups on the sequences of hydrolysis and condensation reactions leading to formation of particles in precursor sol. In addition, the arrangement of octyl groups is used for explanation of particles arrangement on film surface.

Název v anglickém jazyce

Relation between chemical composition of sols and surface free energy of inorganic-organic films

Popis výsledku anglicky

The presented study deals with relation between chemical composition of precursor sols and surface free energy of inorganic-organic films. Inorganic-organic films were prepared from precursor sols in “tetraethoxysilane (TEOS) – triethoxy (octyl)silane (OTES) - distilled water - nitric acid - isopropyl alcohol” system. The fifteen sols were prepared, where the ratio of K = x(OTES)/(x(TEOS) x(OTES)) varied from 0 to 0.5 and ratio of R = x(H2O)/(x(TEOS) x(OTES)) varied from 2 to 6. The relationship between chemical composition and surface free energy of inorganic-organic films was quantified by model selection approach. Model, which describes the studied relationship in the best way, was selected on the basis of Akaike information criterion. Based on the analysis of selected (the best describing) model, it was found out that the surface free energy as well as its dispersion and polar component are dependent only on K ratio in observed range of K and R values. Form the physico-chemical aspect, the observed dependences of surface free energy, its dispersive and polar component on chemical composition of precursor sols are explained by the influence of octyl groups on the sequences of hydrolysis and condensation reactions leading to formation of particles in precursor sol. In addition, the arrangement of octyl groups is used for explanation of particles arrangement on film surface.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Sol-Gel Science and Technology

ISSN

0928-0707

e-ISSN

—

Svazek periodika

88

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

497-507

Kód UT WoS článku

000450652400002

EID výsledku v databázi Scopus

2-s2.0-85055956197