TY  - JOUR
AU  - Endo, H.
AU  - Allgaier, J.
AU  - Mihailescu, M.
AU  - Monkenbusch, M.
AU  - Gompper, G.
AU  - Richter, D.
AU  - Jakobs, B.
AU  - Sottmann, T.
AU  - Strey, R.
TI  - Amphiphilic block copolymers as efficiency boosters in microemulsions : a SANS investigation of the role of polymers
JO  - Applied physics / A
VL  - 74
SN  - 0947-8396
CY  - Berlin
PB  - Springer
M1  - PreJuSER-27661
SP  - 392 - 395
PY  - 2002
N1  - Record converted from VDB: 12.11.2012
AB  - 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.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000181499600129
DO  - DOI:10.1007/s003390201550
UR  - https://juser.fz-juelich.de/record/27661
ER  -