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000170223 1001_ $$0P:(DE-H253)PIP1022531$$aOrtmann, Daniel$$b0$$eCorresponding Author
000170223 245__ $$aLipid Monolayers with Adsorbed Oppositely Charged Polyelectrolytes: Influence of Reduced Charge Densities
000170223 260__ $$aBasel$$bMDPI$$c2014
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000170223 520__ $$aPolyelectrolytes in dilute solutions (0.01 mmol/L) adsorb in a two-dimensional lamellar phase to oppositely charged lipid monolayers at the air/water interface. The interchain separation is monitored by Grazing Incidence X-ray Diffraction. On monolayer compression, the interchain separation decreases to a factor of two. To investigate the influence of the electrostatic interaction, either the line charge density of the polymer is reduced (a statistic copolymer with 90% and 50% charged monomers) or mixtures between charged and uncharged lipids are used (dipalmitoylphosphatidylcholine (DPPC)/ dioctadecyldimethylammonium bromide (DODAB)) On decrease of the surface charge density, the interchain separation increases, while on decrease of the linear charge density, the interchain separation decreases. The ratio between charged monomers and charged lipid molecules is fairly constant; it decreases up to 30% when the lipids are in the fluid phase. With decreasing surface charge or linear charge density, the correlation length of the lamellar order decreases.
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000170223 7001_ $$0P:(DE-H253)PIP1007343$$aAhrens, Heiko$$b1
000170223 7001_ $$0P:(DE-HGF)0$$aMilewski, Sven$$b2
000170223 7001_ $$0P:(DE-H253)PIP1012879$$aLawrenz, Frank$$b3
000170223 7001_ $$0P:(DE-H253)PIP1012472$$aGroening, Andreas$$b4
000170223 7001_ $$0P:(DE-HGF)0$$aLaschewsky, Andre$$b5
000170223 7001_ $$0P:(DE-HGF)0$$aGarnier, Sebastien$$b6
000170223 7001_ $$0P:(DE-H253)PIP1007365$$aHelm, Christiane A.$$b7
000170223 770__ $$aPolyelectrolytes 2014
000170223 773__ $$0PERI:(DE-600)2527146-5$$a10.3390/polym6071999$$n7$$p1999-2017$$tPolymers$$v6$$x2073-4360$$y2014
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