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Properties Of Aqueous Solutions Of Triblock Copolymers Of Ethylene Oxide And Propylene Oxide And Their Mixtures With Surfactants Studied By Surface Tension And Neutron Reflection
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Book Synopsis Properties of Aqueous Solutions of Triblock Copolymers of Ethylene Oxide and Propylene Oxide and Their Mixtures with Surfactants Studied by Surface Tension and Neutron Reflection by : Josélio Viera
Download or read book Properties of Aqueous Solutions of Triblock Copolymers of Ethylene Oxide and Propylene Oxide and Their Mixtures with Surfactants Studied by Surface Tension and Neutron Reflection written by Josélio Viera and published by . This book was released on 2002 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Successful Candidates for the Degrees of D.Phil., M.Litt., M.Sc., and Diploma in Law with Titles of Their Theses by : University of Oxford
Download or read book Successful Candidates for the Degrees of D.Phil., M.Litt., M.Sc., and Diploma in Law with Titles of Their Theses written by University of Oxford and published by . This book was released on 2002 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigations of the Interfacial Properties of Aqueous Solutions of Disulfide-containing Surfactants by : Lana Iva Jong
Download or read book Investigations of the Interfacial Properties of Aqueous Solutions of Disulfide-containing Surfactants written by Lana Iva Jong and published by . This book was released on 1999 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interactions of Surfactants with Polymers and Proteins by : E. Desmond Goddard
Download or read book Interactions of Surfactants with Polymers and Proteins written by E. Desmond Goddard and published by CRC Press. This book was released on 2018-01-18 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interactions of Surfactants with Polymers and Proteins covers work done in this area over the last 30 years and examines in detail the physico-chemical, microstructural, and applications aspects of interactions of surfactants with polymers and proteins in bulk surfaces and at interfaces. The physical chemistry of individual components (surfactants, polymers, and proteins) is discussed, and extensive coverage of interactions of surfactants with uncharged, oppositely charged, and hydrophobe modified polymers is provided. Other topics addressed include water soluble and insoluble keratinous proteins, the principles and applications of fluorescence spectroscopy, the physical properties and microstructural aspects of polymer/protein-surfactant complexes, and implications of surfactant interactions with polymers and proteins in practical systems. Interactions of Surfactants with Polymers and Proteins provides a wealth of information for chemists involved in a number of different research areas, including cosmetics, pharmaceutics, foods, paints, pigments, lubrication, ceramics, minerals/materials processing, and biological systems.
Book Synopsis Investigating Aqueous PEO-PPO-PEO Triblock Copolymer Dispersion Dynamics with Colloidal Sphere Thermal Motion by :
Download or read book Investigating Aqueous PEO-PPO-PEO Triblock Copolymer Dispersion Dynamics with Colloidal Sphere Thermal Motion written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the thesis is to investigate the structural and dynamical behavior of aqueous poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock surfactants, commercially known as PluronicsTM, by studying the Brownian motion of embedded tracer probe particles. Recent advances in the understanding of diffusive light transport in highly scattering media have seeded a novel dynamic light scattering technique in the multiple scattering limit known as diffusing wave spectroscopy (DWS). This technique allows for the determination of probe motion at frequencies greater than 1 MHz and at a spatial resolution of several angstroms. Thus, DWS provides unique access to early thermal relaxation modes in Pluronic samples, which is the proposed origin of viscoelastic behavior observed on a macroscopic level. In general, Pluronic-type macromolecular surfactants associate into spherical micelles, leading to complex structures and rich dynamic behavior when dispersed in aqueous solution. In the first part of the thesis, we demonstrate the utility of DWS microrheology to studying the short-time dynamics of aqueous Pluronic L64 [(EO)13(PO)30(EO)13] solutions, revealing a temperature independent high frequency viscosity above the micellization temperature. The dynamics at high temperatures are dominated by an apparent attractive inter-micellar potential, consistent with our inverse osmotic pressure measurements. We confirm the presence of a short-lived elastic gel at high temperatures, which we attribute to a spanning cluster indicating the crossing of a dynamic percolation threshold. In the second part of this thesis, we employ a high-pressure scattering cell to examine the phase space of aqueous Pluronic P85 [(EO)25(PO)40(EO)25] solutions. We demonstrate that subtle changes in water by densification via increased hydrostatic pressure, by increasing thermal energy, or even by isotopic substitution, lead to discernable large-scale effects in aqueous P85 Pluronic s.
Book Synopsis Solvent Properties of Surfactant Solutions by : Kōzō Shinoda
Download or read book Solvent Properties of Surfactant Solutions written by Kōzō Shinoda and published by Hodder Education. This book was released on 1967 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Surfactants: Chemistry, Interfacial Properties, Applications by : D. Möbius
Download or read book Surfactants: Chemistry, Interfacial Properties, Applications written by D. Möbius and published by Elsevier. This book was released on 2001-12-21 with total page 679 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication provides comprehensive material on the chemical and physical attributes of surfactants and new models for the understanding of structure-property relationships. Surfactants Chemistry, Interfacial Properties, Applications provides efficient instruments for the prognostication of principal physicochemical properties and the technologic applicability from the structure of a surfactant through the discussion of interrelations between the chemical structure, physicochemical properties and the efficiency of technologic application. Also included are informative overviews on new experimental techniques and abundant reference material on manufacturers, nomenclature, product properties, and experimental examples. The publication is accompanied by a CD-ROM, which is needed for the application of the thermodynamic and kinetic models to experimental data.
Book Synopsis Aqueous Mixtures of Block Copolymer Surfactants by : Sumeet Jain
Download or read book Aqueous Mixtures of Block Copolymer Surfactants written by Sumeet Jain and published by . This book was released on 2005 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Surfactants and Interfacial Phenomena by : Milton J. Rosen
Download or read book Surfactants and Interfacial Phenomena written by Milton J. Rosen and published by John Wiley & Sons. This book was released on 1978 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Brownian Motion in Polymer and Surfactant Solutions by :
Download or read book Brownian Motion in Polymer and Surfactant Solutions written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this work is to investigate the dynamical behavior of aqueous polymer solutions, and aqueous poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide), commercially available as PluronicsTM, triblock copolymer surfactant solutions at elevated temperatures and pressures. Diffusing wave spectroscopy is utilized to monitor the thermal motion of dispersed colloidal particles in the solutions. The measured mean squared displacement (MSD) of the colloidal particles is used to infer the microrheological properties of the solutions, since the MSD is directly proportional to the microscopic creep compliance. This technique allows for the motion of the colloidal particles to be resolved at times as short as ̃ 10-6 s, allowing access to the microrheological properties at frequencies as large as 1MHz. For the case of aqueous poly(ethylene oxide) (PEO) solutions, the MSD of the colloidal particles is shown to change with temperature and pressure variations, owing to modification of water hydrogen bonding properties. These colloidal sphere MSD variations reflect changes in the solvent quality of water for PEO The MSD of tracer particles is also used to study aqueous PluronicTM F108 solutions, which exhibit rich phase behavior with concentration, temperature, and pressure. These solutions are shown to behave essentially as soft, repulsive spheres. Also, the effect of Pluronic-RTM 25R4 on the phase behavior and microrheological properties of F108 solutions is studied. The observed microrheological behavior of these systems is discussed within the context of theoretical descriptions of high-frequency colloidal dynamics.
Book Synopsis Surfactants and Polymers in Aqueous Solution by : Krister Holmberg
Download or read book Surfactants and Polymers in Aqueous Solution written by Krister Holmberg and published by Wiley. This book was released on 2018-08-20 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many industrial formulations such as detergents, paints, foodstuff and cosmetics contain both surfactants and polymers and their interaction govern many of the properties. This book is unique in that it discusses the solution chemistry of both surfactants and polymers and also the interactions between the two. The book, which is based on successful courses given by the authors since 1992, is a revised and extended version of the first edition that became a market success with six reprints since 1998. Surfactants and Polymers in Aqueous Solution is broad in scope, providing both theoretical insights and practical help for those active in the area. This book contains a thorough discussion of surfactant types and gives information of main routes of preparation. A chapter on novel surfactants has been included in the new edition. Physicochemical phenomena such as self-assembly in solution, adsorption, gel formation and foaming are discussed in detail. Particular attention is paid to the solution behaviour of surfactants and polymers containing polyoxyethylene chains. Surface active polymers are presented and their interaction with surfactants is a core topic of the book. Protein-surfactant interaction is also important and a new chapter deals with this issue. Microemulsions are treated in depth and several important application such as detergency and their use as media for chemical reactions are presented. Emulsions and the choice of emulsifier is discussed in some detail. The new edition also contains chapters on rheology and wetting. Surfactants and Polymers in Aqueous Solution is aimed at those dealing with surface chemistry research at universities and with surfactant formulation in industry.
Book Synopsis Ferrocenyl Surfactants at the Surface of Water by : Benedict Silvestre Gallardo
Download or read book Ferrocenyl Surfactants at the Surface of Water written by Benedict Silvestre Gallardo and published by . This book was released on 1997 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nonionic Surfactants by : Vaughn Nace
Download or read book Nonionic Surfactants written by Vaughn Nace and published by CRC Press. This book was released on 1996-03-05 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on copolymers made from sequential block polymerizations of ethylene oxide, propylene oxide and 1, 2-butylene oxide. This text presents the latest applications of polyoxyalkylene block copolymers in areas such as medicine, coal and petroleum, plastics, emulsion polymerization, paper, photography, personal care and cleaner systems. It offers in-depth coverage of the subject from synthesis and analysis to toxicology and environmental impact.
Book Synopsis Nonionic Surfactants by : Vaughn Nace
Download or read book Nonionic Surfactants written by Vaughn Nace and published by CRC Press. This book was released on 2019-08-30 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on copolymers made from sequential block polymerizations of ethylene oxide, propylene oxide and 1, 2-butylene oxide. This text presents the latest applications of polyoxyalkylene block copolymers in areas such as medicine, coal and petroleum, plastics, emulsion polymerization, paper, photography, personal care and cleaner systems. It offers in-depth coverage of the subject from synthesis and analysis to toxicology and environmental impact.
Book Synopsis Block Copolymers by : Nikos Hadjichristidis
Download or read book Block Copolymers written by Nikos Hadjichristidis and published by John Wiley & Sons. This book was released on 2003-04-28 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers may be classified as either homopolymers, consisting of one single repeating unit, or copolymers, consisting of two or more distinct repeating units. Block copolymers contain long contiguous blocks of two or more repeating units in the same polymer chain. Covering one of the hottest topics in polymer chemistry, Block Copolymers provides a coherent overview of the synthetic routes, physical properties, and applications of block copolymers. This pioneering text provides not only a guideline for developing synthetic strategies for creating block copolymers with defined characteristics, but also a key to the relationship between the physical properties of block copolymers and the structure and dynamics of materials. Covering features of the chemistry and physics of block copolymers that are not found in comparable texts, Block Copolymers illustrates the structure-activity relationship of block copolymers and offers suggestions for the design of specific applications. Divided into five sections-Block Copolymers includes chapters on: * Block Copolymers by Chemical Modification of Precursor Polymers * Nonlinear Block Copolymers * Adsorption of Block Copolymers at Solid-Liquid Interfaces * Theory of Block Copolymer Segregation * Phase Transformation Kinetics * Block Copolymer Morphology * Block Copolymer Dynamics Polymer chemists, physicists, chemical engineers, and materials scientists, as well as graduate students in polymer science, will find Block Copolymers to be an invaluable text.
Book Synopsis A Modern Course in Transport Phenomena by : David C. Venerus
Download or read book A Modern Course in Transport Phenomena written by David C. Venerus and published by Cambridge University Press. This book was released on 2018-03-15 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrating nonequilibrium thermodynamics and kinetic theory, this unique text presents a novel approach to the subject of transport phenomena.
Book Synopsis Soft-Matter Characterization by : Redouane Borsali
Download or read book Soft-Matter Characterization written by Redouane Borsali and published by Springer Science & Business Media. This book was released on 2008-07-28 with total page 1490 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2-volume set includes extensive discussions of scattering techniques (light, neutron and X-ray) and related fluctuation and grating techniques that are at the forefront of this field. Most of the scattering techniques are Fourier space techniques. Recent advances have seen the development of powerful direct imaging methods such as atomic force microscopy and scanning probe microscopy. In addition, techniques that can be used to manipulate soft matter on the nanometer scale are also in rapid development. These include the scanning probe microscopy technique mentioned above as well as optical and magnetic tweezers.
