End-tethered charged chains at surfaces |
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| Institution: | 1. Service de physique de l''état condensé, CEA Saclay, 91191 Gif-sur-Yvette cedex, France;2. Institut français du pétrole, 1–4, av. du Bois-Préau, 92582 Rueil Malmaison cedex, France;3. College of Engineering, University of California, Santa Barbara, CA 93106, USA;1. School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing, 210044, China;2. Innovation Academy for Microsatellites, Chinese Academy of Sciences, Shanghai, 201203, China;1. Institute of Sound and Vibration Research, University of Southampton, University Rd, Southampton SO17 1BJ, United Kingdom;2. Nuffield Department of Clinical Neurosciences, Level 6, West Wing, John Radcliffe Hospital, Oxford OX3 9DU, United Kingdom |
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| Abstract: | We present here a short review covering most of the experimental results on tethering charged chains by an end to a surface. A first class of experiments deals with solid surfaces where charged chains are either chemically grafted or adsorbed through a purposely chosen moiety. Structural studies have been carried out by scattering methods, spectroscopic techniques or microscopy. Forces between the polyelectrolyte layers covering the surfaces have also been obtained by using for instance, the surface force apparatus (SFA). A second class of experiments concerns polyelectrolytes, which are end-tethered to flexible surfaces like air–liquid or liquid–liquid interfaces. These experiments are fewer in number and mainly rely on the adsorption or spreading of charged diblock copolymers at the fluid interfaces. |
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