期刊
EUROPHYSICS LETTERS
卷 56, 期 5, 页码 683-689出版社
EDP SCIENCES S A
DOI: 10.1209/epl/i2001-00574-3
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We demonstrate a new approach to determine the bending rigidity of the amphiphile lm in microemulsions and sponge phases from neutron scattering data. This method is precise enough to measure the logarithmic scale dependence of the bending rigidity and its universal prefactor for the rst time. Furthermore, we show that in the mushroom regime the bending rigidity of a membrane decorated by amphiphilic block copolymers increases linearly with the polymer concentration on the membrane; the amplitude is found to be about a factor 1.5 larger than theoretical results for ideal chains.
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