Results 241 to 250 of about 40,560 (274)
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Chem. Commun., 2012
Charged macromolecules with controlled microstructures were prepared. Well-defined non-ionic precursors were first synthesized by sequence-controlled radical polymerization of tert-butyl 4-vinyl benzoate with various N-substituted maleimides. Afterwards, these macromolecules were hydrolyzed into polyanions.
Sansanee Srichan +3 more
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Charged macromolecules with controlled microstructures were prepared. Well-defined non-ionic precursors were first synthesized by sequence-controlled radical polymerization of tert-butyl 4-vinyl benzoate with various N-substituted maleimides. Afterwards, these macromolecules were hydrolyzed into polyanions.
Sansanee Srichan +3 more
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Langmuir, 2009
This perspective seeks to identify an area of soft materials research focused on the study of functional polyelectrolytes. These materials combine the useful properties intrinsic to polyelectrolyte chains, with added functionality provided by specific molecular (or polymeric) functional groups that are present in the polymer backbone or as a pendant ...
Kirk S, Schanze, Abigail H, Shelton
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This perspective seeks to identify an area of soft materials research focused on the study of functional polyelectrolytes. These materials combine the useful properties intrinsic to polyelectrolyte chains, with added functionality provided by specific molecular (or polymeric) functional groups that are present in the polymer backbone or as a pendant ...
Kirk S, Schanze, Abigail H, Shelton
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Polyelectrolyte brushes and polyelectrolyte adsorption layers
Berichte der Bunsengesellschaft für physikalische Chemie, 1996AbstractThe structure of brushes and adsorption layers of polyelectrolytes containing strong and weak groups is analysed, using both a numerical self‐consistent‐field (SCF) model and approximate analytical expressions. The latter are based upon a local electroneutrality approximation (brushes) or upon a mutual compensation of the adsorbed polymer ...
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Scaling behaviour of polyelectrolytes and polyelectrolyte brushes
Il Nuovo Cimento D, 1994Simulation results as well as experimental data indicate that full stretching of flexible polyelectrolytes will not occur under experimentally realizable conditions. Using density-dependent swelling exponents ν(ϕ) as suggested by Stevens and Kremer from the results of a MD simulation study, we present an Alexander-de Gennes-like scaling picture for the
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Journal of Physics: Condensed Matter, 2002
Using extensive molecular dynamics simulations we study the behaviour of polyelectrolytes (PEs) in poor solvents, explicitly taking the counterions into account. The resulting pearl-necklace structures are subject to strong conformational fluctuations. These lead to small signatures in the form factor and the force–extension relation, which is a severe
Holm, C., Limbach, H., Kremer, K.
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Using extensive molecular dynamics simulations we study the behaviour of polyelectrolytes (PEs) in poor solvents, explicitly taking the counterions into account. The resulting pearl-necklace structures are subject to strong conformational fluctuations. These lead to small signatures in the form factor and the force–extension relation, which is a severe
Holm, C., Limbach, H., Kremer, K.
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Polyelectrolyte Multilayers on Weak Polyelectrolyte Brushes
Macromolecular Rapid Communications, 2003AbstractThe interaction of surface‐attached weak polyelectrolyte brushes, grown directly from the surface of a solid substrate by surface‐initiated polymerization, with weak polyelectrolyte molecules in solution is studied. In addition, the formation of PEL multilayers onto such brush substrates is investigated. A strong template effect is observed and
Zhang, Haining, Rühe, Jürgen
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Glycosaminoglycans as polyelectrolytes
Advances in Colloid and Interface Science, 2010One of the barriers to understanding structure-property relations for glycosaminoglycans has been the lack of constructive interplay between the principles and methodologies of the life sciences (molecular biology, biochemistry and cell biology) and the physical sciences, particularly in the field of polyelectrolytes.
Seyrek, E, Dubin, P
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Enhanced Dewatering of Polyelectrolyte Nanocomposites by Hydrophobic Polyelectrolytes
Langmuir, 2012We demonstrate that increasing the hydrophobic environment around the charge center of a polyelectrolyte (PE) not only decreases the water content of an adsorbed PE layer but can even dewater up to ~50% of an initially hydrated substrate. The results of this work are expected to yield new stratagies to dewater PE systems and have potential applications
Joshua D, Kittle +6 more
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2012
Rod-like polyelectrolytes represent ideal model systems for a comprehensive com- parison of theory and experiment because their conformation is independent of the ionic strength in the system. Hence, the correlation of the counterions to the highly charged macroion can be studied without the interference of conformational effects.
Holm, C. +3 more
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Rod-like polyelectrolytes represent ideal model systems for a comprehensive com- parison of theory and experiment because their conformation is independent of the ionic strength in the system. Hence, the correlation of the counterions to the highly charged macroion can be studied without the interference of conformational effects.
Holm, C. +3 more
openaire +2 more sources