Interactions Of Colloidal Particles With Simple Electrolytes And Polyelectrolytes

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Interactions of Colloidal Particles with Simple Electrolytes and Polyelectrolytes

Author : Michal Skarba
Publisher :
ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.:/5 (428 download)

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Book Synopsis Interactions of Colloidal Particles with Simple Electrolytes and Polyelectrolytes by : Michal Skarba

Download or read book Interactions of Colloidal Particles with Simple Electrolytes and Polyelectrolytes written by Michal Skarba and published by . This book was released on 2008 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les interactions des particules colloïdales avec des espèces chargées ont été étudiées par des méthodes de diffusion de la lumière et des méthodes électrochimiques. Une étude sur l'agrégation et le comportement de l'accumulation de la charge des particules colloïdales de silice révèle un comportement qui est quantitativement en accord avec la théorie DLVO. Nous avons étendu cette dernière étude aussi en présence de simples électrolytes divalents. La structure de la couche de polyélectrolytes qui sont absorbés a été étudiée par la méthode de la diffusion de lumière dynamique et par celle de la diffusion de neutrons à bas angle d'incidence. Finalement, nous avons étudié les interactions entre les particules colloïdales et d'autres types de particules à charge opposée. Les valeurs de taux d'agrégation ont été mesurées par les méthodes de diffusion de lumières statique et dynamique en présence d'homo-agrégation.

Effects of Polyelectrolytes and Their Oligomers on Charging and Interactions of Colloidal Particles

Author : Amin Sadeghpour Dilmaghani
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.:/5 (14 download)

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Book Synopsis Effects of Polyelectrolytes and Their Oligomers on Charging and Interactions of Colloidal Particles by : Amin Sadeghpour Dilmaghani

Download or read book Effects of Polyelectrolytes and Their Oligomers on Charging and Interactions of Colloidal Particles written by Amin Sadeghpour Dilmaghani and published by . This book was released on 2012 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Role of Polyelectrolytes in the Filtration of Colloidal Particles from Water and Wastewater

Author : William W. Shuster
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Role of Polyelectrolytes in the Filtration of Colloidal Particles from Water and Wastewater by : William W. Shuster

Download or read book Role of Polyelectrolytes in the Filtration of Colloidal Particles from Water and Wastewater written by William W. Shuster and published by . This book was released on 1976 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: An extensive review has been made of the literature in connection with the use of polyelectrolytes in the removal of colloidal particles from water and wastewater by mechanisms of filtration. Pertinent literature on the nature of colloidal materials and current theory related to particle interactions and coagulation has been briefly reviewed. Present thought on the physical aspects and the chemical aspects of filtration has been considered. References related to the characterization and behavior of multi-media filters as well as single media filters were included in this work. Particular attention was directed to the review and evaluation of articles related to specific applications of the use of polyelectrolytes in water treatment, and in domestic and industrial wastewater treatment.

Physical Chemistry of Polyelectrolytes

Author : Tsetska Radeva
Publisher : CRC Press
ISBN 13 : 9780824704636
Total Pages : 910 pages
Book Rating : 4.7/5 (46 download)

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Book Synopsis Physical Chemistry of Polyelectrolytes by : Tsetska Radeva

Download or read book Physical Chemistry of Polyelectrolytes written by Tsetska Radeva and published by CRC Press. This book was released on 2001-02-21 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt: An examination of the fundamental nature of polyelectrolytes, static and dynamic properties of salt-free and salt-added solutions, and interactions with other charged and neutral species at interfaces with applications to industry and medicine. It applies the Metropolis Monte Carlo simulation to calculate counterion distributions, electric potentials, and fluctuation of counterion polarization for model DNA fragments.

Polyelectrolytes

Author : Visakh P. M.
Publisher : Springer
ISBN 13 : 3319016806
Total Pages : 388 pages
Book Rating : 4.3/5 (19 download)

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Book Synopsis Polyelectrolytes by : Visakh P. M.

Download or read book Polyelectrolytes written by Visakh P. M. and published by Springer. This book was released on 2014-09-03 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a valuable reference source to graduate and post graduate students, engineering students, research scholars polymer engineers from industry. The book provides the reader with current developments of theoretical models describing the thermodynamics polyelectrolytes as well as experimental findings. A particular emphasis is put on the rheological description of polyelectrolyte solutions and hydrogels.

Interactions in Colloidal Systems

Author :
Publisher :
ISBN 13 :
Total Pages : 199 pages
Book Rating : 4.:/5 (76 download)

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Book Synopsis Interactions in Colloidal Systems by :

Download or read book Interactions in Colloidal Systems written by and published by . This book was released on 2006 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main thread-line connecting the different parts of this dissertation is various non-double layer interactions present in the colloidal system. The first chapter is a general introduction to the double layer and non-double layer interactions. In chapter 2 and 3, the double layer and hydration interactions have been coupled into a single set of equations because both are dependent on the polarization of the water molecules. The coupled equations involve the electric fields generated by the surface charge and surface dipoles, as well as the field due to the neighboring dipoles in water. The obtained equations were employed to explain the restabilization observed experimentally at large ionic strengths for colloidal particles on which protein molecules were adsorbed. In chapter 4, a general expression for the force generated between the two charged plates immersed in an electrolyte solution containing relatively small charged particles was derived based on Langmuir's approach. For charged plates immersed in a solution of an electrolyte and charged small particles, the effects of particle charge, particle charge sign, particle size and volume fraction of the particles on the force acting between the two plates were examined. In chapter 5, a cell model was proposed to examine the behavior of a dispersion of large particles immersed in an electrolyte solution containing small particles. chapter 6, two-dimensional Poisson-Boltzmann equation was solved to calculate the double layer interactions between two plates grafted polyelectrolyte. In chapter 7, a lower dielectric constant in the polymer adsorption layer is suggested The hairy adsorption layer can have a long range effect on the repulsive double layer interactions. In chapter 8, the bridging force induced by polyelectrolyte was investigated by using a self-consistent-field approach which takes into account the van der Waals interactions between the segments of the polyelectrolyte molecules and the plates, as well as the electrostatic and volume exclusion interactions. A positive contribution to the force between two plates is generated by the van der Waals interactions between the segments and the plates.

An Improved Form for the Electrostatic Interactions of Polyelectrolytes in Solution and Its Implications for the Analysis of QELSS Experiments in Sodium Dodecyl Sulfate and Cetyl Trimethyl Ammonium Bromide

Download An Improved Form for the Electrostatic Interactions of Polyelectrolytes in Solution and Its Implications for the Analysis of QELSS Experiments in Sodium Dodecyl Sulfate and Cetyl Trimethyl Ammonium Bromide PDF Online Free

Author : Nicholas V. Sushkin
Publisher : Universal-Publishers
ISBN 13 : 1581120087
Total Pages : 155 pages
Book Rating : 4.5/5 (811 download)

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Book Synopsis An Improved Form for the Electrostatic Interactions of Polyelectrolytes in Solution and Its Implications for the Analysis of QELSS Experiments in Sodium Dodecyl Sulfate and Cetyl Trimethyl Ammonium Bromide by : Nicholas V. Sushkin

Download or read book An Improved Form for the Electrostatic Interactions of Polyelectrolytes in Solution and Its Implications for the Analysis of QELSS Experiments in Sodium Dodecyl Sulfate and Cetyl Trimethyl Ammonium Bromide written by Nicholas V. Sushkin and published by Universal-Publishers. This book was released on 1997-11 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electrostatic interaction between two charged spheres in the presence of a screening electrolyte is calculated at the level of the linearized Debye-Hückel theory. The calculation is performed analytically as a multipole expansion by applying two-center spherical harmonic expansions and symbolic manipulation methods. I focus on charge-charge and charge-induced dipole interactions, calculated for two spheres of possibly unequal size. The former interaction is given to good approximation by the familiar Debye-Hückel form q1q2exp[-k(R-2a)]/[(epsilon*r(1]ka)^2]. The new results are the charge-induced dipole interactions. Physically, these terms arise from two sources: (i) surface polarization charge at the surface of each sphere, and (ii) exclusion of the counterion cloud of each sphere from the volume occupied by the other sphere. With parameters appropriate for micelles, the charge-induced dipole interactions dominate the charge-charge interaction at small separations. Quasi-elastic light scattering measurements of the diffusion of sodium dodecyl sulfate (SDS) and cetyl trimethyl ammonium bromide (CTAB) micelles in aqueous solutions, and the diffusion of mesoscopic optical probes through the same solutions, were carried out at 35°C and multiple solvent ionic strengths. Assuming a spherical micelle, I deduced the micelle radius, aggregation number, charge, and hydration from nonlinear least-squares fits to both probe and mutual diffusion data. For SDS micelles the charge that I find is lower than reported in the literature [Hayter, J. B.; Penfold, J. Colloid & Polymer Science 1983, 261, 1022; Triolo, R.; Caponetti, E.; Graziano, V. J. Phys. Chem. 1985, 89, 5743.] because I used an improved functional form of the micellar electrostatic interaction. I find a smaller aggregation number and a larger micellar hydration than literature values. My analysis of CTAB data implies extensive micellar growth, and failure of the spherical micelle assumption.

Particles Inside Electrolytes with Ion-specific Interactions, Their Effective Charge Distributions, and Effective Interactions *Project Supported by the National Natural Science Foundation of China (Grant Nos. 11174196 and 91130012).

Download Particles Inside Electrolytes with Ion-specific Interactions, Their Effective Charge Distributions, and Effective Interactions *Project Supported by the National Natural Science Foundation of China (Grant Nos. 11174196 and 91130012). PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (15 download)

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Book Synopsis Particles Inside Electrolytes with Ion-specific Interactions, Their Effective Charge Distributions, and Effective Interactions *Project Supported by the National Natural Science Foundation of China (Grant Nos. 11174196 and 91130012). by :

Download or read book Particles Inside Electrolytes with Ion-specific Interactions, Their Effective Charge Distributions, and Effective Interactions *Project Supported by the National Natural Science Foundation of China (Grant Nos. 11174196 and 91130012). written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: In this work, we explore the statistical physics of colloidal particles that interact with electrolytes via ion-specific interactions. Firstly we study particles interacting weakly with electrolyte using linear response theory. We find that the mean potential around a particle is linearly determined by the effective charge distribution of the particle, which depends both on the bare charge distribution and on ion-specific interactions. We also discuss the effective interaction between two such particles and show that, in the far field regime, it is bilinear in the effective charge distributions of two particles. We subsequently generalize the above results to the more complicated case where particles interact strongly with the electrolyte. Our results indicate that in order to understand the statistical physics of non-dilute electrolytes, both ion-specific interactions and ionic correlations have to be addressed in a single unified and consistent framework.

Polyelectrolyte Complexes in the Dispersed and Solid State I

Author : Martin Müller
Publisher : Springer
ISBN 13 : 364240734X
Total Pages : 236 pages
Book Rating : 4.6/5 (424 download)

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Book Synopsis Polyelectrolyte Complexes in the Dispersed and Solid State I by : Martin Müller

Download or read book Polyelectrolyte Complexes in the Dispersed and Solid State I written by Martin Müller and published by Springer. This book was released on 2014-07-08 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Polymer Science enjoys a longstanding tradition and good reputation in its community. Each volume is dedicated to a current topic, and each review critically surveys one aspect of that topic, to place it within the context of the volume. The volumes typically summarize the significant developments of the last 5 to 10 years and discuss them critically, presenting selected examples, explaining and illustrating the important principles, and bringing together many important references of primary literature. On that basis, future research directions in the area can be discussed. Advances in Polymer Science volumes thus are important references for every polymer scientist, as well as for other scientists interested in polymer science - as an introduction to a neighboring field, or as a compilation of detailed information for the specialist.

Electrolytes at Interfaces

Author : S. Durand-Vidal
Publisher : Springer Science & Business Media
ISBN 13 : 9781402004063
Total Pages : 364 pages
Book Rating : 4.0/5 (4 download)

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Book Synopsis Electrolytes at Interfaces by : S. Durand-Vidal

Download or read book Electrolytes at Interfaces written by S. Durand-Vidal and published by Springer Science & Business Media. This book was released on 2001-11-30 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to provide the reader with a modern presentation of ionic solutions at interfaces, for physical chemists, chemists and theoretically oriented experimentalists in this field. The discussion is mainly on the structural and thermodynamic properties, in relation to presently available statistical mechanical models. Some dynamic properties are also presented, at a more phenomenological level. The initial chapters are devoted to the presentation of some basic concepts for bulk properties: hydrodynamic interactions, electrostatics, van der Waals forces and thermodynamics of ionic solutions in the framework of a particular model: the mean spherical approximation (MSA). Specific features of interfaces are then discussed: experimental techniques such as in-situ X-ray diffraction, STM and AFM microscopy are described. Ions at liquid/air, liquid/metal and liquid/liquid interfaces are considered from the experimental and theoretical viewpoint. Lastly some dynamic (transport) properties are included, namely the self-diffusion and conductance of small colloids (polyelectrolytes and micelles) and the kinetics of solute transfer at free liquid/liquid interfaces.

Particle Deposition and Aggregation

Author : M. Elimelech
Publisher : Butterworth-Heinemann
ISBN 13 : 1483161374
Total Pages : 458 pages
Book Rating : 4.4/5 (831 download)

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Book Synopsis Particle Deposition and Aggregation by : M. Elimelech

Download or read book Particle Deposition and Aggregation written by M. Elimelech and published by Butterworth-Heinemann. This book was released on 2013-10-22 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle Deposition and Aggregation: Measurement, Modelling and Simulation describes how particle deposition and aggregation can be measured, modeled, and simulated in a systematic manner. It brings together the necessary disciplines of colloid and surface chemistry, hydrodynamics, experimental methods, and computational methods to present a unified approach to this problem. The book is divided into four parts. Part I presents the theoretical principles governing deposition and aggregation phenomena, including a discussion of the forces that exist between particles and the hydrodynamic factors that control the movement of the particles and suspending fluid. Part II introduces methods for modeling the processes, first at a simple level (e.g. single particle-surface, single particle-single particle interactions in model flow conditions) and then describes the simulation protocols and computation tools which may be employed to describe more complex (multiple-particle interaction) systems. Part III summarizes the experimental methods of quantifying aggregating and depositing systems and concludes with a comparison of experimental results with those predicted using simple theoretical predictions. Part IV is largely based on illustrative examples to demonstrate the application of simulation and modeling methods to particle filtration, aggregation, and transport processes. This book should be useful to graduates working in process and environmental engineering research or industrial development at a postgraduate level, and to scientists who wish to extend their knowledge into more realistic process conditions in which the fluid hydrodynamics and other complicating factors must be accommodated.

Colloids in Drug Delivery

Author : Monzer Fanun
Publisher : CRC Press
ISBN 13 : 9781439818268
Total Pages : 652 pages
Book Rating : 4.8/5 (182 download)

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Book Synopsis Colloids in Drug Delivery by : Monzer Fanun

Download or read book Colloids in Drug Delivery written by Monzer Fanun and published by CRC Press. This book was released on 2016-04-19 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: Colloidal drug delivery systems present a range of therapeutic benefits in the treatment of a number of challenging conditions, allowing researchers to cross barriers that have previously prevented efficient treatment while offering improved and more targeted absorption. Summarizing recent research in the field, Colloids in Drug Delivery assembles

Colloid and Interface Science in Pharmaceutical Research and Development

Author : Hiroyuki Ohshima
Publisher : Elsevier
ISBN 13 : 0444626085
Total Pages : 533 pages
Book Rating : 4.4/5 (446 download)

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Book Synopsis Colloid and Interface Science in Pharmaceutical Research and Development by : Hiroyuki Ohshima

Download or read book Colloid and Interface Science in Pharmaceutical Research and Development written by Hiroyuki Ohshima and published by Elsevier. This book was released on 2014-07-23 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: Colloid and Interface Science in Pharmaceutical Research and Development describes the role of colloid and surface chemistry in the pharmaceutical sciences. It gives a detailed account of colloid theory, and explains physicochemical properties of the colloidal-pharmaceutical systems, and the methods for their measurement. The book starts with fundamentals in Part I, covering fundamental aspects of colloid and interface sciences as applied to pharmaceutical sciences and thus should be suitable for teaching. Parts II and III treat applications and measurements, and they explains the application of these properties and their influence and use for the development of new drugs. - Provides a clear description of the fundamentals of colloid and interface science relevant to drug research and development - Explains the physicochemical/colloidal basis of pharmaceutical science - Lists modern experimental characterization techniques, provides analytical equations and explanations on analyzing the experimental data - Describes the most advanced techniques, AFM (Atomic Force Microscopy), SFA (Surface Force Apparatus) in detail

Fundamentals of Polymer Physics and Molecular Biophysics

Author : Himadri B. Bohidar
Publisher : Cambridge University Press
ISBN 13 : 1107058708
Total Pages : 345 pages
Book Rating : 4.1/5 (7 download)

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Book Synopsis Fundamentals of Polymer Physics and Molecular Biophysics by : Himadri B. Bohidar

Download or read book Fundamentals of Polymer Physics and Molecular Biophysics written by Himadri B. Bohidar and published by Cambridge University Press. This book was released on 2015-01-05 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Provides a physical interpretation of the data obtained in macromolecular transport phenomena in a given system and also addresses some important issues and concepts related to biopolymers such as proteins and nucleic acids"--

Interfacial Phenomena and Colloid Stability

Author : Tharwat F. Tadros
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110283433
Total Pages : 358 pages
Book Rating : 4.1/5 (12 download)

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Book Synopsis Interfacial Phenomena and Colloid Stability by : Tharwat F. Tadros

Download or read book Interfacial Phenomena and Colloid Stability written by Tharwat F. Tadros and published by Walter de Gruyter GmbH & Co KG. This book was released on 2015-05-19 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fundamental book on interfacial phenomena forms the basis of application of interface and colloid science to various disperse systems. These include suspensions, emulsions, nano-dispersions, wetting, spreading, deposition and adhesion of particles to surfaces. These systems occur in most industrial applications, such as personal care and cosmetic formulations, pharmaceutical systems particularly for controlled and targeted delivery of drugs, agrochemical formulations and enhancement of their biological performance, paints and coatings as well as most food formulations. These applications are described in volume 2. The text is very valuable for formulation chemists, chemical engineers and technologies who are involved in such applications. In addition this fundamental text is also valuable for research scientists and Ph.D. students investigating various aspects of interface and colloid science.

Particles at Interfaces

Author : Zbigniew Adamczyk
Publisher : Elsevier
ISBN 13 : 0081012691
Total Pages : 704 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Particles at Interfaces by : Zbigniew Adamczyk

Download or read book Particles at Interfaces written by Zbigniew Adamczyk and published by Elsevier. This book was released on 2017-10-27 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particles and Interfaces: Interaction, Deposition, Structure, Volume 20, Second Edition unifies particle and protein adsorption phenomena by presenting recent developments in this growing field of nanoscience. While experimental data is available in vast quantities, there is a deficit in quality interpretation of that data. This title provides such information, emphasizing the basic physics behind practical problems, thus empowering the reader to estimate relevant effects. The book includes solved problems of particle transport under non-linear conditions and their relevance to predicting protein adsorption, including an entirely new chapter devoted to polyelectrolyte and protein adsorption at solid/liquid and solid/gas interfaces. - Unifies information from various fields, such as electrostatics, hydrodynamic, colloid science and biophysics - Presents information in a user-friendly manner, including computer aided graphics and schematic drawings - Applies a phenomenological approach to the content and provides readily accessible reference data

Colloid and Surface Chemistry

Author : Seyda Bucak
Publisher : CRC Press
ISBN 13 : 1466553103
Total Pages : 282 pages
Book Rating : 4.4/5 (665 download)

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Book Synopsis Colloid and Surface Chemistry by : Seyda Bucak

Download or read book Colloid and Surface Chemistry written by Seyda Bucak and published by CRC Press. This book was released on 2013-12-17 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: With principles that are shaping today’s most advanced technologies, from nanomedicine to electronic nanorobots, colloid and interface science has become a truly interdisciplinary field, integrating chemistry, physics, and biology. Colloid and Surface Chemistry: Exploration of the Nano World- Laboratory Guide explains the basic principles of colloid and interface science through experiments that emphasize the fundamentals. It bridges the gap between the underlying theory and practical applications of colloid and surface chemistry. Separated into five chapters, the book begins by addressing research methodology, how to design successful experiments, and ethics in science. It also provides practical information on data collection and analysis, keeping a laboratory notebook, and writing laboratory reports. With each section written by a distinguished researcher, chapter 2 reviews common techniques for the characterization and analysis of colloidal structures, including surface tension measurements, viscosity and rheological measurements, electrokinetic methods, scattering and diffraction techniques, and microscopy. Chapters 3–5 provide 19 experiments, each including the purpose of the experiment, background information, pre-laboratory questions, step-by-step procedures, and post-laboratory questions. Chapter 3 contains experiments about colloids and surfaces, such as sedimentation, exploration of wetting phenomena, foam stability, and preparation of miniemulsions. Chapter 4 covers various techniques for the preparation of nanoparticles, including silver, magnetic, and silica nanoparticles. Chapter 5 demonstrates daily-life applications of colloid science, describing the preparation of food colloids, body wash, and body cream.