Decanol pattern formation over a sessile aqueous decanoate droplet

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F21%3A43922220" target="_blank" >RIV/60461373:22320/21:43922220 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/21:43922220

Výsledek na webu

<a href="https://doi.org/10.1016/j.colsurfa.2021.126541" target="_blank" >https://doi.org/10.1016/j.colsurfa.2021.126541</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.colsurfa.2021.126541" target="_blank" >10.1016/j.colsurfa.2021.126541</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Decanol pattern formation over a sessile aqueous decanoate droplet

Popis výsledku v původním jazyce

Spontaneous pattern formation in far from equilibrium systems plays important role in various disciplines including biology and reaction-diffusion chemistry. Recently, we have found that when a system consisting of a 1-decanol droplet and alkaline sodium decanoate aqueous solution is opened to the environment, and water evaporates, dramatic morphological changes of the decanol droplet are observed. Herein a series of experiments is performed to describe the effect of the initial condition (pH, molar concentration, volume of decanol) of the system on the pattern formation. Experiments showed that the timing of the pattern formation decreases with an increasing concentration of sodium decanoate and with increasing decanol volume. The timing of the pattern formation was significantly lower in basic pH conditions (~12). We propose an explanation of the pattern formation based on the diffusion of decanol into the sodium decanoate rich surface layer. The water evaporation leads to the evolution of the mixed interface, which becomes unstable and the pattern formation of 1-decanol occurs. Finally, our results indicate that the pattern formation of 1-decanol might be related to the co-micellization of sodium decanoate and 1-decanol. © 2021 Elsevier B.V.

Název v anglickém jazyce

Decanol pattern formation over a sessile aqueous decanoate droplet

Popis výsledku anglicky

Spontaneous pattern formation in far from equilibrium systems plays important role in various disciplines including biology and reaction-diffusion chemistry. Recently, we have found that when a system consisting of a 1-decanol droplet and alkaline sodium decanoate aqueous solution is opened to the environment, and water evaporates, dramatic morphological changes of the decanol droplet are observed. Herein a series of experiments is performed to describe the effect of the initial condition (pH, molar concentration, volume of decanol) of the system on the pattern formation. Experiments showed that the timing of the pattern formation decreases with an increasing concentration of sodium decanoate and with increasing decanol volume. The timing of the pattern formation was significantly lower in basic pH conditions (~12). We propose an explanation of the pattern formation based on the diffusion of decanol into the sodium decanoate rich surface layer. The water evaporation leads to the evolution of the mixed interface, which becomes unstable and the pattern formation of 1-decanol occurs. Finally, our results indicate that the pattern formation of 1-decanol might be related to the co-micellization of sodium decanoate and 1-decanol. © 2021 Elsevier B.V.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/GJ17-21696Y" target="_blank" >GJ17-21696Y: Studium tvorby obrazců kapek dekanolu vyvolané odpařováním</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Colloids and Surfaces A: Physicochemical and Engineering Aspects

ISSN

0927-7757

e-ISSN

—

Svazek periodika

621

Číslo periodika v rámci svazku

July

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

126541

Kód UT WoS článku

000655641800002

EID výsledku v databázi Scopus

2-s2.0-85104367313