TY - JOUR
T1 - Neutral and charged polymers at interfaces
AU - Netz, Roland R.
AU - Andelman, David
N1 - Funding Information:
It is a pleasure to thank our collaborators G. Ariel, I. Borukhov, M. Breidenich, Y. Burak, H. Diamant, H. Gaub, J.-F. Joanny, K. Kunze, L. Leibler, R. Lipowsky, A. Moreira, H. Orland, M. Schick, C. Seidel, A. Shafir and Y. Tsori with whom we have been working on polymers and polyelectrolytes. One of us (DA) would like to acknowledge partial support from the Israel Science Foundation, Centers of Excellence Program and under grant no. 210/02, the Israel–US Binational Science Foundation (BSF) under grant no. 98-00429, and the Alexander von Humboldt Foundation for a research award. RRN acknowledges financial support by Deutsche Forschungsgemeinschaft (DFG, SFB 486 and German–French Network) and the Fonds der Chemischen Industrie.
PY - 2003/6
Y1 - 2003/6
N2 - Chain-like macromolecules (polymers) show characteristic adsorption properties due to their flexibility and internal degrees of freedom, when attracted to surfaces and interfaces. In this review we discuss concepts and features that are relevant to the adsorption of neutral and charged polymers at equilibrium, including the type of polymer/surface interaction, the solvent quality, the characteristics of the surface, and the polymer structure. We pay special attention to the case of charged polymers (polyelectrolytes) that have a special importance due to their water solubility. We present a summary of recent progress in this rapidly evolving field. Because many experimental studies are performed with rather stiff biopolymers, we discuss in detail the case of semi-flexible polymers in addition to flexible ones. We first review the behavior of neutral and charged chains in solution. Then, the adsorption of a single polymer chain is considered. Next, the adsorption and depletion processes in the many-chain case are reviewed. Profiles, changes in the surface tension and polymer surface excess are presented. Mean-field and corrections due to fluctuations and lateral correlations are discussed. The force of interaction between two adsorbed layers, which is important in understanding colloidal stability, is characterized. The behavior of grafted polymers is also reviewed, both for neutral and charged polymer brushes.
AB - Chain-like macromolecules (polymers) show characteristic adsorption properties due to their flexibility and internal degrees of freedom, when attracted to surfaces and interfaces. In this review we discuss concepts and features that are relevant to the adsorption of neutral and charged polymers at equilibrium, including the type of polymer/surface interaction, the solvent quality, the characteristics of the surface, and the polymer structure. We pay special attention to the case of charged polymers (polyelectrolytes) that have a special importance due to their water solubility. We present a summary of recent progress in this rapidly evolving field. Because many experimental studies are performed with rather stiff biopolymers, we discuss in detail the case of semi-flexible polymers in addition to flexible ones. We first review the behavior of neutral and charged chains in solution. Then, the adsorption of a single polymer chain is considered. Next, the adsorption and depletion processes in the many-chain case are reviewed. Profiles, changes in the surface tension and polymer surface excess are presented. Mean-field and corrections due to fluctuations and lateral correlations are discussed. The force of interaction between two adsorbed layers, which is important in understanding colloidal stability, is characterized. The behavior of grafted polymers is also reviewed, both for neutral and charged polymer brushes.
UR - http://www.scopus.com/inward/record.url?scp=0038184005&partnerID=8YFLogxK
U2 - 10.1016/S0370-1573(03)00118-2
DO - 10.1016/S0370-1573(03)00118-2
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AN - SCOPUS:0038184005
SN - 0370-1573
VL - 380
SP - 1
EP - 95
JO - Physics Reports
JF - Physics Reports
IS - 1-2
ER -