Evolution of structure in a comb copolymer-surfactant coacervate
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F19%3A00507871" target="_blank" >RIV/61389013:_____/19:00507871 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216208:11310/19:10403676
Výsledek na webu
<a href="https://pubs.acs.org/doi/10.1021/acs.macromol.9b00332" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.macromol.9b00332</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.macromol.9b00332" target="_blank" >10.1021/acs.macromol.9b00332</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Evolution of structure in a comb copolymer-surfactant coacervate
Popis výsledku v původním jazyce
The interaction between a double-hydrophilic comb copolymer with the polyanionic backbone poly[methacrylic acid-stat-poly(ethylene glycol) methyl ether methacrylate] (PMAA–PEGMA) and the cationic surfactant N-dodecylpyridinium chloride (DPCl) was studied in alkaline aqueous solutions by using a combination of light and X-ray scattering techniques, covering 5 orders of magnitude in space (the q vector range from 10–5 to 5 nm–1) and time (from milliseconds to several hours). The results showed that the polyelectrolyte–surfactant (PE–S) complex of PMAA–PEGMA and DPCl forms micrometer-sized coacervate particles containing collapsed PMAA–PEGMA chains with attached and densely packed DPCl micelles. Time-resolved SAXS measurements coupled with a stopped-flow apparatus revealed that the phase separation of the PE–S complex into a coacervate phase occurred in <25 ms after mixing the polyelectrolyte and the surfactant. Thus, microphase separation was faster than the self-assembly of DPCl into densely packed micelles. The terminal stages of polyelectrolyte–surfactant coacervation were dictated by the Ostwald ripening of the droplets in the time range of hours.
Název v anglickém jazyce
Evolution of structure in a comb copolymer-surfactant coacervate
Popis výsledku anglicky
The interaction between a double-hydrophilic comb copolymer with the polyanionic backbone poly[methacrylic acid-stat-poly(ethylene glycol) methyl ether methacrylate] (PMAA–PEGMA) and the cationic surfactant N-dodecylpyridinium chloride (DPCl) was studied in alkaline aqueous solutions by using a combination of light and X-ray scattering techniques, covering 5 orders of magnitude in space (the q vector range from 10–5 to 5 nm–1) and time (from milliseconds to several hours). The results showed that the polyelectrolyte–surfactant (PE–S) complex of PMAA–PEGMA and DPCl forms micrometer-sized coacervate particles containing collapsed PMAA–PEGMA chains with attached and densely packed DPCl micelles. Time-resolved SAXS measurements coupled with a stopped-flow apparatus revealed that the phase separation of the PE–S complex into a coacervate phase occurred in <25 ms after mixing the polyelectrolyte and the surfactant. Thus, microphase separation was faster than the self-assembly of DPCl into densely packed micelles. The terminal stages of polyelectrolyte–surfactant coacervation were dictated by the Ostwald ripening of the droplets in the time range of hours.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10404 - Polymer science
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Macromolecules
ISSN
0024-9297
e-ISSN
—
Svazek periodika
52
Číslo periodika v rámci svazku
16
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
8
Strana od-do
6303-6310
Kód UT WoS článku
000483437500028
EID výsledku v databázi Scopus
2-s2.0-85071655824