Journal Article

PreJuSER-27661

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Amphiphilic block copolymers as efficiency boosters in microemulsions : a SANS investigation of the role of polymers

Endo, H.FZJ* ; Allgaier, J.FZJ* ; Mihailescu, M.FZJ* ; Monkenbusch, M.FZJ* ; Gompper, G.FZJ* ; Richter, D.FZJ* ; Jakobs, B. ; Sottmann, T. ; Strey, R.

2002
Springer Berlin

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Please use a persistent id in citations: doi:10.1007/s003390201550

Abstract: The effect of amphiphilic block copolymers on ternary microemulsions (water, oil and non-ionic surfactant) is investigated. Small amounts of PEP-PEO block copolymer lead to a dramatic expansion of the one-phase region where water and oil can be solubilized by the mediation of surfactant molecules. Small-angle neutron-scattering experiments employing a high-precision two-dimensional contrast-variation technique demonstrate that the polymer is distributed uniformly on the surfactant membrane, where it modifies the membrane curvature elasticity. Furthermore, a new approach to determine the bending rigidity of an amphiphilic membrane is proposed, which is precise enough to measure the logarithmic scale dependence of the bending rigidity and its universal prefactor in bicontinuous microemulsions.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Neutronenstreuung (IFF-NST)
2. Theorie II (IFF-TH-II)

Research Program(s):

1. Kondensierte Materie (M02)

Appears in the scientific report 2002
Notes: Nachtrag

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Database coverage:
JCR ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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