Self-assembly in surfactant-based liquid mixtures: Bis(2-ethylhexyl)phosphoric acid/bis(2-ethylhexyl)amine systems

Vincenzo Turco Liveri, Angela Monia Ruggirello, Pietro Calandra, Andrea Mele

Risultato della ricerca: Article

20 Citazioni (Scopus)

Abstract

Surfactant-based liquid mixtures constitute an interesting class of nanostructured materials with promising potential in specialized applications. Here, structural and conductometric properties of liquid mixtures composed of bis(2-ethylhexyl)amine (BEEA) and bis(2-ethylhexyl)phosphoric acid (HDEHP) have been thoroughly investigated with the aim to correlate structural features with system charge transport capability. The evolution of self-assembled local nanostructures with system composition has been investigated by FT-IR and XRD while the conductometric properties were probed by conventional AC complex impedance. Both pure components exhibit nano-segregation due to their amphiphilic nature but with only very low proton conductivities. However their mixtures, characterized by local organization of polar and apolar domains driven by acid–base interactions between HDEHP PO4H and BEEA NH groups, show enhanced structural order and proton conductivity.
Lingua originaleEnglish
pagine (da-a)183-188
Numero di pagine6
RivistaJournal of Colloid and Interface Science
Volume2010
Stato di pubblicazionePublished - 2010

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Proton conductivity
Surface-Active Agents
Self assembly
Amines
Surface active agents
Liquids
Phosphoric acid
Nanostructured materials
Nanostructures
Acids
Chemical analysis
phosphoric acid

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Colloid and Surface Chemistry
  • Surfaces, Coatings and Films
  • Biomaterials

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abstract = "Surfactant-based liquid mixtures constitute an interesting class of nanostructured materials with promising potential in specialized applications. Here, structural and conductometric properties of liquid mixtures composed of bis(2-ethylhexyl)amine (BEEA) and bis(2-ethylhexyl)phosphoric acid (HDEHP) have been thoroughly investigated with the aim to correlate structural features with system charge transport capability. The evolution of self-assembled local nanostructures with system composition has been investigated by FT-IR and XRD while the conductometric properties were probed by conventional AC complex impedance. Both pure components exhibit nano-segregation due to their amphiphilic nature but with only very low proton conductivities. However their mixtures, characterized by local organization of polar and apolar domains driven by acid–base interactions between HDEHP PO4H and BEEA NH groups, show enhanced structural order and proton conductivity.",
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author = "{Turco Liveri}, Vincenzo and Ruggirello, {Angela Monia} and Pietro Calandra and Andrea Mele",
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T1 - Self-assembly in surfactant-based liquid mixtures: Bis(2-ethylhexyl)phosphoric acid/bis(2-ethylhexyl)amine systems

AU - Turco Liveri, Vincenzo

AU - Ruggirello, Angela Monia

AU - Calandra, Pietro

AU - Mele, Andrea

PY - 2010

Y1 - 2010

N2 - Surfactant-based liquid mixtures constitute an interesting class of nanostructured materials with promising potential in specialized applications. Here, structural and conductometric properties of liquid mixtures composed of bis(2-ethylhexyl)amine (BEEA) and bis(2-ethylhexyl)phosphoric acid (HDEHP) have been thoroughly investigated with the aim to correlate structural features with system charge transport capability. The evolution of self-assembled local nanostructures with system composition has been investigated by FT-IR and XRD while the conductometric properties were probed by conventional AC complex impedance. Both pure components exhibit nano-segregation due to their amphiphilic nature but with only very low proton conductivities. However their mixtures, characterized by local organization of polar and apolar domains driven by acid–base interactions between HDEHP PO4H and BEEA NH groups, show enhanced structural order and proton conductivity.

AB - Surfactant-based liquid mixtures constitute an interesting class of nanostructured materials with promising potential in specialized applications. Here, structural and conductometric properties of liquid mixtures composed of bis(2-ethylhexyl)amine (BEEA) and bis(2-ethylhexyl)phosphoric acid (HDEHP) have been thoroughly investigated with the aim to correlate structural features with system charge transport capability. The evolution of self-assembled local nanostructures with system composition has been investigated by FT-IR and XRD while the conductometric properties were probed by conventional AC complex impedance. Both pure components exhibit nano-segregation due to their amphiphilic nature but with only very low proton conductivities. However their mixtures, characterized by local organization of polar and apolar domains driven by acid–base interactions between HDEHP PO4H and BEEA NH groups, show enhanced structural order and proton conductivity.

KW - Surfactants, Conducting materials, Self-assembly, Liquid mixtures

UR - http://hdl.handle.net/10447/50808

M3 - Article

VL - 2010

SP - 183

EP - 188

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

SN - 0021-9797

ER -