The Interfacial Assembly of Polyoxometalate Nanoparticle Surfactants.

Autor: Huang C; Polymer Science and Engineering Department , University of Massachusetts , 120 Governors Drive , Conte Center for Polymer Research, Amherst , Massachusetts 01003 , United States., Chai Y, Jiang Y, Forth J, Ashby PD, Arras MML, Hong K, Smith GS, Yin P; South China Advanced Institute for Soft Matter Science and Technology , South China University of Technology , Guangzhou 510640 , China., Russell TP; Polymer Science and Engineering Department , University of Massachusetts , 120 Governors Drive , Conte Center for Polymer Research, Amherst , Massachusetts 01003 , United States.; Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , Beijing 100029 , China.
Jazyk: angličtina
Zdroj: Nano letters [Nano Lett] 2018 Apr 11; Vol. 18 (4), pp. 2525-2529. Date of Electronic Publication: 2018 Mar 26.
DOI: 10.1021/acs.nanolett.8b00208
Abstrakt: Polyoxometalates (POMs) using {Mo 72 V 30 } as an example, dissolved in water, can interact with amine-terminated polydimethylsiloxane (PDMS-NH 2 ) dissolved in toluene at the water/toluene interface to form POM-surfactants that significantly lower the interfacial tension and can be used to stabilize liquids via interfacial elasticity. The jamming of the POM-surfactants at the water/oil interface with consequent wrinkling occurs with a decrease in the interfacial area. The packing density of the POM-surfactants at the interface can be tuned by varying the strength of screening with the addition of cations with differing hydrated radii.
Databáze: MEDLINE