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Adsorption onto polyelectrolytes

IV. ADSORPTION OF POLYELECTROLYTES ONTO OPPOSITELY CHARGED SURFACES... [Pg.7]

Ellipsometric Study of Adsorption of Polyelectrolyte onto a Metal Surface... [Pg.39]

Experimental studies of the adsorption of polyelectrolyte have been reported by several authors Pefferkom, Dejardin, and Varoqui (3) measured the hydrodynamic thickness of an alternating copolymer of maleic acid and ethyl vinyl ether adsorbed on the pore walls in cellulose ester filter as a function of the molecular weight and the concentration of NaCl. Robb et al. (4) studied the adsorption of carboxy methyl cellulose and poly (acrylic acid) onto surfaces of insoluble inorganic salts. However, their studies are limited to the measurements of adsorbance and the fraction of adsorbed segments. [Pg.40]

TAKAHASHI ETAl.. Polyelectrolyte Adsorption onto Meta ... [Pg.47]

A.V. (1997) Adsorption of a corticoid on colloidal hematite particles of different geometries. J. Colloid Interface Sd. 187 429-434 Verdonck, L. Hoste, S. Roelandt, F.F. Van der Kelen, G.P. (1982) Normal coordinate analysis of a-FeOOH - a molecular approach. J. Molecular Structure 79 273-279 Vermilyea, D.A. (1966) The dissolution of ionic compounds in aqueous media. J. Electro-chem. Soc. 113 1067-1070 Vermohlen, K. Lewandowski, H. Narres, H-D. Schwager, M.S. (2000) Adsorption of polyelectrolytes onto oxides - the influence of ionic strength, molar mass and Ca " ions. Coll. Surf. A 163 45-53... [Pg.640]

Adsorption of polyelectrolytes onto solid surfaces are not yet explored as extensively as that of non-ionic polymers, and most studies are limited to adsorbance measurements. [Pg.54]

The adsorption of block copolymers can be controlled by different stimuli, in particular by the pH since most of the brushes formed by block copolymers adsorption are polyelectrolyte brushes [129, 130], The group of Armes, for instance, studied the pH-controlled adsorption of a series of block copolymers [131, 132], In the case of copolymers bearing hydrophobic 2-(diethylamino)ethyl methacrylate groups (DEA) and a water-soluble zwiterionic poly(2-methacryloyl phosphoryl-choline) (MPC) block, they showed that at low pH the cationic DEA flatted to the anionic silicon surface while the MPC was in contact with the solution [132], At around neutral pH, micelles were formed in solution and adsorbed onto the surface because the DEA core was still weakly cationic. The MPC block formed the micelle coronas. Nevertheless, at higher pH the micelles became less cationic and the adsorption rate decreased. [Pg.16]

Ladam G, Schaaf P, Cuisinier FJ et al (2001) Protein adsorption onto auto-assembled polyelectrolyte films. Langmuir 17 878-882... [Pg.155]

Balabushevitch NG, Sukhorukov GB, Moroz NA et al (2001) Encapsulation of proteins by layer-by-layer adsorption of polyelectrolytes onto protein aggregates. Biotechnol Bioeng 76 207-213... [Pg.158]

Wischerhoff E, Laschewsky A (1999) Polyelectrolyte adsorption onto planar surfaces a study by streaming potential and ellipsometry measurements. Colloids Surf A Physicochem Eng Aspects 159 491... [Pg.108]

The characteristics of QCM sensors containing mono- or multilayered DNA probe constructed by direct chemical bonding, avidin-biotin interaction or electrostatic adsorption on polyelectrolyte films were compared by Zhou et al. [60]. The use of the polyethyleneimine adhesion, glutaraldehyde cross-linking (PEI-Glu) method to immobilize hepatitis B virus DNA onto gold QCM quartz crystals, enabling the sensor to be regenerated five times, was reported by Hu and co-workers [61],... [Pg.392]

Electrochemical stimulated systems have potential biomedical and micromechanical application. Electrochemical stimuli controlled loading/adsorption onto oppositely charged polyelectrolyte materials on porous microspheres that was previously reported by Malinova and Wandrey. ° Electrochemical stimuli cause an increase in osmotic pressure of the redox-active polyelectrolyte... [Pg.1349]

It is also possible to incorporate various functional groups on the surface of the particles to produce multifunctional magnetic latex [93, 94]. The LBL adsorption of polyelectrolyte onto the colloidal particles is a well-recognized method for magnetic nanoparticle encapsulation and functionalization [95, 96]. [Pg.252]

Scheme 1 Chemical structures of synthetic polyelectrolytes used up to now for the fabrication of multilayers. There are considerably more polyelectrolytes whose adsorption onto solid surfaces has been studied previously. Counter-ions are omitted in some cases, most of the abbreviations of the substances follow the original literature. The compounds are referenced as follows PSS (17,21,24,61-63,71,75,77-79) PVS (80,81) PAZO (77) PAPSA (24) SPAN (35,65) PTAA (65) PAMPSA (82) PSMDEMA (7(5,77) PAH (17,20,24,27,61-63,65,68,71,73-75,79,80,83-86) l re-PPV (19,34,35,38,87,88) PDDA (24,29) PMPyA (65) R-PHpyV (36) PEI (24, 79,81,89)... Scheme 1 Chemical structures of synthetic polyelectrolytes used up to now for the fabrication of multilayers. There are considerably more polyelectrolytes whose adsorption onto solid surfaces has been studied previously. Counter-ions are omitted in some cases, most of the abbreviations of the substances follow the original literature. The compounds are referenced as follows PSS (17,21,24,61-63,71,75,77-79) PVS (80,81) PAZO (77) PAPSA (24) SPAN (35,65) PTAA (65) PAMPSA (82) PSMDEMA (7(5,77) PAH (17,20,24,27,61-63,65,68,71,73-75,79,80,83-86) l re-PPV (19,34,35,38,87,88) PDDA (24,29) PMPyA (65) R-PHpyV (36) PEI (24, 79,81,89)...
Surface adsorption onto a water-insoluble solid support [various ion-exchange resins and inorganic polyelectrolytes, e.g. Ti(OH)4, silicates]. [Pg.50]

Interestingly, while the adsorption of polyelectrolytes onto BaS04 does not conform to the usual assumptions of the Langmuir adsorption isotherm model, the Langmuir model nevertheless provides a good fit to these experimental results as it does in many other cases of polymer adsorption. The Langmuir adsorption isotherm can be written in linear form as shown in Equation 1. [Pg.186]

Donath E, Walther D, Shilov VN, Knippel E, Budde A, Lowack K, et al. Nonlinear hairy layer theory of electrophoretic fingerprinting applied to consecutive layer by layer polyelectrolyte adsorption onto charged polystyrene latex particles. Lemgmuir 1997 13(20) 5294-305. [Pg.190]

Strong and Weak Polyelectrolyte Adsorption onto Oppositely Charged Curved. [Pg.3]

See other pages where Adsorption onto polyelectrolytes is mentioned: [Pg.66]    [Pg.66]    [Pg.41]    [Pg.45]    [Pg.49]    [Pg.51]    [Pg.75]    [Pg.110]    [Pg.111]    [Pg.177]    [Pg.217]    [Pg.381]    [Pg.603]    [Pg.352]    [Pg.49]    [Pg.31]    [Pg.773]    [Pg.292]    [Pg.182]    [Pg.185]    [Pg.63]    [Pg.533]    [Pg.274]    [Pg.224]    [Pg.400]    [Pg.413]    [Pg.568]   
See also in sourсe #XX -- [ Pg.66 ]



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