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SUMMARY:Nanostructure in Protic Ionic Liquids
DTSTART:20130419T140000
DTSTAMP:20260407T091034Z
UID:f9aa78ddc1bd0893caa86013cca75d16df61f4ea286f40fb0152eccb
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Robert Hayes\, University of Newcastle\, Australia\nProtic
  ionic liquids (ILs) are a new\, important class of solvents often referre
 d to as ‘designer solvents’ because liquid properties can be tuned by 
 variations in chemical structure. ILs are unusual among solvents in that t
 hey consist entirely of ions\, with no neutral species present. In the las
 t decade or so\, IL research has flourished\, mainly because these solvent
 s display performance advantages over conventional solvents a variety of s
 ettings. However\, current use of ILs is hindered by poor understanding of
  liquid (nano-)structure\, and how this affects solvent performance.\nIn t
 his talk\, model fits to neutron diffraction data show that ILs form bicon
 tinuous nanostructures in the bulk\, with segregation of charged and uncha
 rged groups. This structure is reminiscent of self-assembly in bicontinuou
 s microemulsions or disordered L3-sponge phases but on length scales an or
 der of magnitude smaller. The nature of IL nanostructure can be controlled
  by systematic variation in ion-ion interactions\, eg. tuning the electros
 tatic\, H-bonding or solvophobic forces. This can be achieved in a number 
 of ways such as changing ion type\, inclusion of functional groups\,  or 
 via the addition of (molecular or ionic) solutes. The relationship between
  bulk and interfacial IL nanostructure will also be briefly discussed.
LOCATION:CM012
STATUS:CONFIRMED
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