Author: Rennan PanPublisher:
ISBN:
Category :
Languages : en
Pages : 322
Book Description
A Study of Surfactant Equations of State and Transport Dynamics at the Air/water Interface
Author: Rennan PanA Theoretical and Experimental Study of Surfactant Transport
Author: Qing SongPublisher: LAP Lambert Academic Publishing
ISBN: 9783844389623
Category :
Languages : en
Pages : 136
Book Description
This dissertation studies the transport dynamics of a water soluble nonionic surfactant C14E6 at the air/water interface at concentration below the critical micelle concentration (CMC) and above the CMC. A method which involves using the pendant bubble as a monolayer film balance is used to directly measure the surface tension as a function of surface concentration. The equilibrium parameters could be uniquely determined by fitting the directly measured equation of state and adsorption isotherm. Instead remarkably different equilibrium parameters for the same surfactant system fit experimental data equally well in the traditional treatment. The kinetic constants are obtained by numerically solving the transport equations for surfactant transport from aqueous solution at concentration below the critical micelles concentration. Theoretically, a model was developed to describe the surfactant transport from micellar solution for the case in which the kinetic rate of breakdown of micelles into monomers is much faster than the rates of bulk diffusion of monomers and micelles.
A Theoretical and Experimental Study of Surfactant Transport from a Micellar Solution to a Clean Air/water Interface
Author: Qing SongEncyclopedia of Colloid and Interface Science
Author: Tharwat TadrosPublisher: Springer
ISBN: 9783642206641
Category : Technology & Engineering
Languages : en
Pages : 0
Book Description
An authoritative and comprehensive reference relevant to all scientists and engineers in the field. This encyclopedia not only helps chemistry, materials science and physics researchers to understand the principles, but also provides practicing engineers with the necessary information for implementing practical applications, such as Food and agrochemicals Polymers and ceramics Cosmetics and detergents Paints and coatings Pharmaceuticals and drug delivery In addition, the encyclopedia is an important reference for industrial chemists and chemical engineers faced with a multitude of industrial systems of a colloidal nature. As wide as the range of applications that colloid and interface science has is the range of scientific disciplines that contribute to research and development in this field. These encompass chemistry, physics, biology and mathematics as well as nanoscience and nanotechnology. The encyclopedia provides easy-to-digest information for meeting these interdisciplinary challenges. While providing numerous concise definitions of key terms, the encyclopedia also features more than forty in-depth essays on topics ranging from Agrochemical Formulations to Zeta Potential. All entries are cross-referenced and include selected references to original literature as well as synonyms.
Reaction Kinetics and the Development and Operation of Catalytic Processes
Author: G.F. FromentPublisher: Elsevier
ISBN: 0080540295
Category : Science
Languages : en
Pages : 663
Book Description
Reaction Kinetics and the Development and Operation of Catalytic Processes is a trendsetter. The Keynote Lectures have been authored by top scientists and cover a broad range of topics like fundamental aspects of surface chemistry, in particular dynamics and spillover, the modeling of reaction mechanisms, with special focus on the importance of transient experimentation and the application of kinetics in reactor design. Fundamental and applied kinetic studies are well represented. More than half of these deal with transient kinetics, a new trend made possible by recent sophisticated experimental equipment and the awareness that transient experimentation provides more information and insight into the microphenomena occurring on the catalyst surface than steady state techniques. The trend is not limited to purely kinetic studies since the great majority of the papers dealing with reactors also focus on transients and even deliberate transient operation. It is to be expected that this trend will continue and amplify as the community becomes more aware of the predictive potential of fundamental kinetics when combined with detailed realistic modeling of the reactor operation.
Fluid Interfaces
Author: Eduardo GuzmánPublisher: MDPI
ISBN: 3039436333
Category : Science
Languages : en
Pages : 232
Book Description
Fluid interfaces are promising candidates for confining different types of materials, e.g., polymers, surfactants, colloids, and even small molecules, to be used in designing new functional materials with reduced dimensionality. The development of such materials requires a deepening of the physicochemical bases underlying the formation of layers at fluid interfaces as well as on the characterization of their structures and properties. This is of particular importance because the constraints associated with the assembly of materials at the interface lead to the emergence of equilibrium and features of dynamics in the interfacial systems, which are far removed from those conventionally found in traditional materials. This Special Issue is devoted to studies on the fundamental and applied aspects of fluid interfaces, and attempts to provide a comprehensive perspective on the current status of the research field.
American Doctoral Dissertations
Author: Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 896
Book Description
Dissertation Abstracts International
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 854
Book Description
Kinetic Studies of Surfactants at the Air-water Interface
Author: Michael Georgiou AntoniadesPublisher:
ISBN:
Category :
Languages : en
Pages : 332
Book Description
Author: