Structural transition of oil-swollen cylindrical micelles of C12E5 in water studied by SANS.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F03%3A49033059" target="_blank" >RIV/61389005:_____/03:49033059 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Structural transition of oil-swollen cylindrical micelles of C12E5 in water studied by SANS.

Popis výsledku v původním jazyce

The effect of added oil on the local structure of oil-swollen cylindrical micelles in the system C12E5 + decane + water was investigated by small-angle neutron scattering (SANS). The geometry of the aggregates was studied for fixed overall concentrationof surfactant plus oil, c(m)=7 mg/mL, and increasing oil content alpha (the mass fraction of oil in the dispersed mixture of surfactant plus oil), to clarify the dependency of the apparent molar mass on alpha which was observed in a preceding light scattering study (J. Phys. Chem. B 1999, 103, 5768). There it was found that with increasing alpha at given cm the molar mass of the micelles increases up to a maximum near alpha=0.07 and then decreases sharply as the oil content is further increased. The present work shows that this decrease of the molar mass results from a decrease of the micellar contour length L-c, whereas the mass per unit length M-L of the aggregates increases almost linearly over the entire range of oil content.

Název v anglickém jazyce

Structural transition of oil-swollen cylindrical micelles of C12E5 in water studied by SANS.

Popis výsledku anglicky

The effect of added oil on the local structure of oil-swollen cylindrical micelles in the system C12E5 + decane + water was investigated by small-angle neutron scattering (SANS). The geometry of the aggregates was studied for fixed overall concentrationof surfactant plus oil, c(m)=7 mg/mL, and increasing oil content alpha (the mass fraction of oil in the dispersed mixture of surfactant plus oil), to clarify the dependency of the apparent molar mass on alpha which was observed in a preceding light scattering study (J. Phys. Chem. B 1999, 103, 5768). There it was found that with increasing alpha at given cm the molar mass of the micelles increases up to a maximum near alpha=0.07 and then decreases sharply as the oil content is further increased. The present work shows that this decrease of the molar mass results from a decrease of the micellar contour length L-c, whereas the mass per unit length M-L of the aggregates increases almost linearly over the entire range of oil content.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

—

Projekt

<a href="/cs/project/KSK1010104" target="_blank" >KSK1010104: Fyzika kondenzovaných systémů a materiálový výzkum</a><br>

Návaznosti

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

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF PHYSICAL CHEMISTRY. B

ISSN

1520-6106

e-ISSN

—

Svazek periodika

107

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

1316-1320

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—