Complexation thermodynamics of a -cyclodextrin with ionic surfactants in water
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F17%3A43913243" target="_blank" >RIV/60461373:22340/17:43913243 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0021979717306215?via%3Dihub" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0021979717306215?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jcis.2017.05.093" target="_blank" >10.1016/j.jcis.2017.05.093</a>
Alternative languages
Result language
angličtina
Original language name
Complexation thermodynamics of a -cyclodextrin with ionic surfactants in water
Original language description
The interaction of a -cyclodextrin ( a -CD) with ten ionic surfactants (S) in water was systematically exam- ined using isothermal titration calorimetry. The S comprised cationic and anionic head groups while the hydrocarbon alkyl chain length varied from eight to fourteen carbon atoms. The heat data were measured atfive temperatures ranging from283.15 Kto318.15 Kand weretreated simultaneouslyallowing theesti- mationof athermodynamicallyconsistenttemperature dependence oftheequilibrium constant,aswellas the enthalpy and heat capacity for the sequential formation of the [ a -CD?S] and the [ a -CD 2 ?S] inclusion complexes. All attempts to fit the data assuming that only [ a -CD?S] complexes are present failed. It was found that the thermodynamic footprint of the [ a -CD?S] complexes does not depend importantly on the head group, while the formation and stabilization of the [ a -CD 2 ?S] complexes is strongly influenced by the chemical nature of the polar head group. Several contributions to the thermodynamic parameters arediscussed indetail.Amongthestudied surfactants, thedecyl- andoctylsulfates were identified asthose with a predominant content of [ a -CD 2 ?S] complexes and hence they are promising candidates to form vis- coelastic films at the liquid/air interface, as it was found previously for the dodecylsulfate surfactant.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Colloid and Interface Science
ISSN
0021-9797
e-ISSN
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Volume of the periodical
505
Issue of the periodical within the volume
November 2017
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
445-453
UT code for WoS article
000410464100048
EID of the result in the Scopus database
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