Zobrazit minimální záznam

dc.contributor.authorSimha Martynková, Gražyna
dc.contributor.authorValášková, Marta
dc.contributor.authorČapková, Pavla
dc.contributor.authorMatějka, Vlastimil
dc.date.accessioned2007-09-17T11:49:00Z
dc.date.available2007-09-17T11:49:00Z
dc.date.issued2007
dc.identifier.citationJournal of colloid and interface science. 2007, vol. 313, issue 1, p. 281-287.en
dc.identifier.issn0021-9797
dc.identifier.urihttp://hdl.handle.net/10084/62777
dc.language.isoenen
dc.publisherElsevieren
dc.relation.ispartofseriesJournal of colloid and interface scienceen
dc.relation.urihttp://dx.doi.org/10.1016/j.jcis.2007.04.007en
dc.subjectquaternary ammonium saltsen
dc.subjectvermiculiteen
dc.subjectintercalationen
dc.subjectmodelingen
dc.subjectnonbond energyen
dc.subjectmean crystallite sizeen
dc.subjectXRDen
dc.titleStructural ordering of organovermiculite: Experiments and modelingen
dc.typearticleen
dc.identifier.locationNení ve fondu ÚKen
dc.description.abstract-enThe ordering of three different sizes of quaternary ammonium salts (QUATs) has been studied with respect to concentration of guests in the host's interlayer gallery. From the modeling, we could verify that small molecules of n-butylammonium salt build a monolayer structure in the vermiculite gallery without reference to concentration. On the other hand, the larger molecules of dodecyltrimethylammonium and dioctadecyldimethylammonium salts are responsive to the numbers of their molecules in the interlayer space of the host, building mono- or bilayered structures. Supersaturated structure of both QUATs keep an arrangement of alkyl chains nearly perpendicular to silicate layers, while only saturated samples exhibit tilted alkyl chains in the gallery. The ordering changes bring out the calculation of mean crystallite size. Low values of the nonbond energy of supersaturated forms predict that those organovermiculites will readily exfoliate, e.g., in polymer/clay nanocompositeen
dc.identifier.doi10.1016/j.jcis.2007.04.007
dc.identifier.wos000248351900036


Soubory tohoto záznamu

SouboryVelikostFormátZobrazit

K tomuto záznamu nejsou připojeny žádné soubory.

Tento záznam se objevuje v následujících kolekcích

Zobrazit minimální záznam