An unusual morphological transformation of rhamnolipid aggregates induced by concentration and addition of styrene: A small angle neutron scattering (SANS) study

Download
  1. Get@NRC: An unusual morphological transformation of rhamnolipid aggregates induced by concentration and addition of styrene: A small angle neutron scattering (SANS) study (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1016/j.colsurfa.2010.10.007
AuthorSearch for: ; Search for: ; Search for:
TypeArticle
Journal titleColloids and Surfaces A: Physicochemical and Engineering Aspects
ISSN0927-7757
Volume373
Issue1-Mar
Pages4250; # of pages: 9
SubjectBio surfactant; Contrast variation; Cylinder-tovesicle phase transition; Cylindrical micelles; Oil-water; Rhamnolipids; Small angle neutron scattering; Structural phase; Vesicle; Binary mixtures; Biomolecules; Cylinders (shapes); Deuterium; Dissolution; Metadata; Micelles; Microemulsions; Neutron scattering; Neutrons; Soil pollution; Styrene; Surface active agents; Phase transitions; oil; rhamnolipid; styrene; article; chemical structure; micelle; microemulsion; neutron scattering; priority journal; solubility
AbstractThe aggregation behaviour of rhamnolipid as mixed with styrene (as a representative of hydrophobic molecules commonly found in contaminated soils) was investigated by small angle neutron scattering (SANS) as a function of both rhamnolipid and styrene concentrations. Contrast variation was applied (i.e., deuterated and hydrogenated styrene) to resolve the morphologies of aggregates. A structural transformation from cylindrical micelles to a binary mixture of cylindrical micelles and vesicles induced by both elevated rhamnolipid and styrene concentration is proposed based on the analysis of the SANS data. The resultant structure of the aggregates, vesicle, is different from the " oil droplets" commonly reported in the microemulsions of water-oil-surfactant mixtures. It is also found that this transformation is far from being complete even at the highest styrene solubility, implying that further dissolution of styrene may be constrained by other factors. © 2010.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Canadian Neutron Beam Centre (CNBC-CCFN)
Peer reviewedYes
NPARC number21271441
Export citationExport as RIS
Report a correctionReport a correction
Record identifier949d05f0-5043-4659-925b-816ca7de599f
Record created2014-03-24
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)