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Author : Dmitry Gromov
Publisher :
ISBN 13 :
Total Pages : 352 pages
Book Rating : 4.:/5 (89 download)
Download or read book Thermodynamics and Phase Behavior Or Polymer Blends and Solutions written by Dmitry Gromov and published by . This book was released on 1997 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Karl Freed
Publisher : Springer Science & Business Media
ISBN 13 : 9783540256809
Total Pages : 224 pages
Book Rating : 4.2/5 (568 download)
Download or read book Phase Behavior of Polymer Blends written by Karl Freed and published by Springer Science & Business Media. This book was released on 2005-09-01 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Anatoly E. Nesterov
Publisher : CRC Press
ISBN 13 : 1000717666
Total Pages : 465 pages
Book Rating : 4.0/5 (7 download)
Download or read book Thermodynamics of Polymer Blends, Volume I written by Anatoly E. Nesterov and published by CRC Press. This book was released on 2020-02-03 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermodynamics is an indispensable tool for developing a large and growing fraction of new polymers and polymer blends. These two volumes show the researcher how thermodynamics can be used to rank polymer pairs in order of immiscibility, including the search for suitable chemical structure of compatibilizers. Because of the great current commercial interest in this most dynamic sector of the polymer industry, there is high interest in studying their physical and mechanical properties, their structures, and the processes of their formation and manufacture. These Books are dedicated to Analysis of the Thermodynamics of Polymer Blends. Thermodynamic behavior of blends determines the compatibility of the components, their morphological features, rheological behavior, and microphase structures. As a result, the most important physical and mechanical characteristics of blends can be identified. The information in these two volumes will be useful to all those involved in polymer research, development, analysis and advanced process engineering.
Author : Menno A. van Dijk
Publisher : CRC Press
ISBN 13 : 1000940330
Total Pages : 220 pages
Book Rating : 4.0/5 (9 download)
Download or read book Concepts in Polymer Thermodynamics, Volume II written by Menno A. van Dijk and published by CRC Press. This book was released on 2023-04-14 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermodynamics is an indispensable tool for developing a large and growing fraction of new polymers and polymer blends. These two volumes show the researcher how thermodynamics can be used to rank polymer pairs in order of immiscibility, including the search for suitable chemical structure of compatibilizers. Because of the great current commercial interest in this most dynamic sector of the polymer industry, there is high interest in studying their physical and mechanical properties, their structures, and the processes of their formation and manufacture. These Books are dedicated to Analysis of the Thermodynamics of Polymer Blends. Thermodynamic behavior of blends determines the compatibility of the components, their morphological features, rheological behavior, and microphase structures. As a result, the most important physical and mechanical characteristics of blends can be identified.
Download or read book Modification of Polymer Blend Phase Behavior with High-Pressure Carbon Dioxide written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: While much progress has been made since the time of Flory and Huggins in the understanding of polymer blend thermodynamics, and ongoing research continues to elucidate how polymer blend phase behavior is affected by the presence of small-molecule solvents or exposure to elevated pressures, very little work has been reported on the combined effects of a pressurized small-molecule solvent on polymer blend phase behavior. The focus of this research is to improve the current state of fundamental understanding regarding how and why the phase behavior of polymer blends changes as pressurized carbon dioxide (CO2) is added. The first part of this work provides a broad overview of previous efforts that explore various thermodynamic and kinetic processes involving the use of CO2 in conjunction with multicomponent polymer systems. The following chapters discuss details of research performed primarily on three blend systems: polystyrene (PS)/polyisoprene (PI), poly(vinylidene fluoride) (PVDF)/ poly(methyl methacrylate) (PMMA), and polydimethylsiloxane (PDMS)/poly(ethylmethylsiloxane) (PEMS). The competing roles of hydrostatic pressure and CO2 dissolution on the phase behavior of both the PS/PI and the PDMS/PEMS blends, which exhibit upper critical solution temperature (UCST) behavior, are systematically established. Additionally, a complete pseudo-binary temperature-composition phase diagram of the PDMS/PEMS blend is generated as a function of CO2 pressure. To compare the predictive abilities of the Flory-Huggins and Sanchez-Lacombe equations of state, interaction parameters of the PDMS/PEMS blend are predicted as functions of temperature and CO2 pressure. The phase behavior of, as well as intermolecular interactions in, PMMA/PVDF blends have been probed in the presence of CO2 by small-angle neutron and x-ray scattering (SANS and SAXS, respectively). These PMMA/PVDF blends, which display both UCST and lower critical solution temperature (LCST.
Author : Nicholas Philip Young
Publisher :
ISBN 13 :
Total Pages : 77 pages
Book Rating : 4.:/5 (18 download)
Download or read book Thermodynamics and Phase Behavior of Miscible Polymer Blends in the Presence of Supercritical Carbon Dioxide written by Nicholas Philip Young and published by . This book was released on 2014 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ronald Koningsveld
Publisher : Oxford University Press, USA
ISBN 13 : 9780198556350
Total Pages : 372 pages
Book Rating : 4.5/5 (563 download)
Download or read book Polymer Phase Diagrams written by Ronald Koningsveld and published by Oxford University Press, USA. This book was released on 2001 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymeric materials include plastics, gels, synthetic fibres, and rubbers. They are all-important both in industry and in daily life. Unlike liquid water, ice, or sugar solution, polymers are not homogeneous. They are said to consist of two or more phases, and their production and processing, as well as their properties and uses, depend on an understanding of the transitions that take place between these phases. This new textbook uses fundamental principles to classify phase separation phenomena in polymer systems, and describes simple molecular models explaining the observed behaviour.
Author : Karl Freed
Publisher : Springer
ISBN 13 : 9783540810186
Total Pages : 199 pages
Book Rating : 4.8/5 (11 download)
Download or read book Phase Behavior of Polymer Blends written by Karl Freed and published by Springer. This book was released on 2009-09-02 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sabine Enders
Publisher : Springer
ISBN 13 : 3642176828
Total Pages : 434 pages
Book Rating : 4.6/5 (421 download)
Download or read book Polymer Thermodynamics written by Sabine Enders and published by Springer. This book was released on 2011-01-18 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Making Flory-Huggins Practical: Thermodynamics of Polymer-Containing Mixtures, by B. A. Wolf * Aqueous Solutions of Polyelectrolytes: Vapor-Liquid Equilibrium and Some Related Properties, by G. Maurer, S. Lammertz, and L. Ninni Schäfer * Gas-Polymer Interactions: Key Thermodynamic Data and Thermophysical Properties, by J.-P. E. Grolier, and S. A.E. Boyer * Interfacial Tension in Binary Polymer Blends and the Effects of Copolymers as Emulsifying Agents, by S. H. Anastasiadis * Theory of Random Copolymer Fractionation in Columns, by Sabine Enders * Computer Simulations and Coarse-Grained Molecular Models Predicting the Equation of State of Polymer Solutions, by K. Binder, B. Mognetti, W. Paul, P. Virnau, and L. Yelash * Modeling of Polymer Phase Equilibria Using Equations of State, by G. Sadowski
Author : Michael M. Coleman
Publisher : CRC Press
ISBN 13 : 1351415166
Total Pages : 516 pages
Book Rating : 4.3/5 (514 download)
Download or read book Specific Interactions and the Miscibility of Polymer Blends written by Michael M. Coleman and published by CRC Press. This book was released on 2017-11-13 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book with software provides powerful tools for the analysis, prediction and creation of new polymer blends, an area of significant commercial potential. The R&D approaches and methods described in the book have attracted the interest of polymer R&D leaders in industry, and have been put into use in several major chemical companies. The companion set of computer programs speeds and facilitates work in this area. FROM THE AUTHORS' PREFACE: During the 1980's a steadily increasing number of compatible systems [polymer blends] have been reported. We believe that miscible mixtures will prove to be fairly common and the purpose of this book is to explore the circumstances in which single phase materials can be obtained. We will also describe a model for the phase behavior of these mixtures which we believe to have a predictive value, or be used as a practical guide to polymer miscibility. Our approach is based on the use of association models which have until recently been largely ignored in treating hydrogen bonding in polymer mixtures. They have most frequently been applied to mixtures of alcohols with simple hydrocarbons, where the equilibrium constants used to describe association have most frequently been determined by a fit to thermodynamic data (e.g., vapor pressures, heat of mixing). In our work we have sought to, first, adapt this approach to a description of the phase behavior of polymer mixtures; second, develop spectroscopic methods that provide an independent measurement of the equilibrium constants. Our purpose in this book is to explore and describe this approach and illustrate its broad utility. We address two overlapping yet different audiences. One would be primarily interested in the broad nature of this approach and the practical applications of a simple model. The second would be more interested in the derivations of the equations and some of the fundamental aspects of the spectroscopy of these systems. Accor
Author : Toshiaki Hino
Publisher :
ISBN 13 :
Total Pages : 610 pages
Book Rating : 4.:/5 (33 download)
Download or read book Molecular Thermodynamics of Copolymer Solutions and Blends written by Toshiaki Hino and published by . This book was released on 1995 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kris Wilcox Haggard
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (713 download)
Download or read book Observations and Thermodynamic Interpretations of Polymer Blend Phase Behavior written by Kris Wilcox Haggard and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kal Renganathan Sharma
Publisher : CRC Press
ISBN 13 : 1439826404
Total Pages : 371 pages
Book Rating : 4.4/5 (398 download)
Download or read book Polymer Thermodynamics written by Kal Renganathan Sharma and published by CRC Press. This book was released on 2011-10-10 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer Thermodynamics: Blends, Copolymers and Reversible Polymerization describes the thermodynamic basis for miscibility as well as the mathematical models used to predict the compositional window of miscibility and construct temperature versus volume-fraction phase diagrams. The book covers the binary interaction model, the solubility parameter
Author : Donald R Paul
Publisher : Elsevier
ISBN 13 : 0323138896
Total Pages : 520 pages
Book Rating : 4.3/5 (231 download)
Download or read book Polymer Blends Volume 1 written by Donald R Paul and published by Elsevier. This book was released on 2012-12-02 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer Blends, Volume 1 highlights the importance of polymer blends as a major new branch of macromolecular science. Topics range from polymer-polymer compatibility and the statistical thermodynamics of polymer blends to the phase separation behavior of polymer-polymer mixtures, transport phenomena in polymer blends, and mechanical properties of multiphase polymer blends. The optical behavior, solid state transition behavior, and rheology of polymer blends are also discussed. This book is organized into 10 chapters and begins with an overview of polymer blends, with emphasis on terminology and the effect of molecular weight on the thermodynamics of polymer blends as well as phase equilibria and transitions. The discussion then turns to the miscibility of homopolymers and copolymers, in bulk and in solution, from the experimental and theoretical viewpoints. The chapters that follow explore the statistical thermodynamics of polymer blends, paying particular attention to the Flory and lattice fluid theories, along with the phase relationship in polymer mixtures. The interfacial energy, structure, and adhesion between polymers in relation to the properties of polymer blends are considered. The final chapter examines the phenomena of low molecular weight penetrant transport. Currently accepted models for unsteady-state and steady-state permeation of polymeric materials are presented. A discussion of unsteady-state absorption and desorption behavior observed in a variety of polymer blends complements the treatment of permeation behavior. This book is intended to provide academic and industrial research scientists and technologists with a broad background in current principles and practice concerning mixed polymer systems.
Author : Elizabeth Alice Clark
Publisher :
ISBN 13 :
Total Pages : 370 pages
Book Rating : 4.:/5 (852 download)
Download or read book Prediction of the Thermodynamic Properties of Branched Polymer Solutions and Copolymer Systems written by Elizabeth Alice Clark and published by . This book was released on 2013 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Throughout this work, a lattice model was used to capture the behavior of polymer systems. First, the phase behavior of solutions which contain polymer solute in an alkane solvent was investigated. The phase diagrams of these solutions are characterized by a lower critical solution temperature (LCST). Previous studies by Anderson [1], demonstrated that the LCST in a series of linear polyethylene / alkane solutions can be predicted using pure polymer and solvent data. Attention was now turned to polymers which are branched in structure, due to the presence of either methyl or ethyl groups in their backbone. The LCSTs for a set of PIB solutions were successfully captured using a combination of pure PIB, pure alkane, and mixture data in a manner similar to that set forth by Anderson [1]. The results for other branched polymer solutions suggest that new methods to fit the pure component data and mixture data at higher temperature and lower pressure may be useful. The second section of this work focused on polymer solutions and blends which exhibit two types of phase behavior; an LCST and an upper critical solution temperature (UCST). Using pure component data for each of the polymers and solvent, as well as mixture data which characterized only the UCST, it was demonstrated that the physics associated with these systems could be modeled with a set of parameters which were temperature, pressure and composition independent. Several hypothetical systems were also presented to demonstrate how the miscibility of these systems varies upon changes in model parameters which tune the polymer molecular weight and solvent-polymer interactions. In addition, a hypothetical polymer blend which exhibits a UCST, as well as two LCSTs were also presented and loosely compared to a real system. Finally, copolymer / homopolymer blends in which the copolymer contains A and B type monomers and the homopolymer us made up of A type monomers, were investigated. To test the plausibility of using minimal data to capture partial miscibility in these blends, each copolymer was first constructed using a simple algorithm which requires only homopolymer data. Agreement was found between the constructed and real copolymer data sets. Several routes to capture partial miscibility in constructed copolymer / homopolymer blends were then presented.
Author : Piyawit Koombhongse
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783847329695
Total Pages : 0 pages
Book Rating : 4.3/5 (296 download)
Download or read book Phase Behavior and Morphology of Polymer Blend Under High Flow Rate written by Piyawit Koombhongse and published by LAP Lambert Academic Publishing. This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of flow is of industrial relevance in melt extrusion and injection molding where temperature gradients and high deformation rates are encountered. This demands a better understanding of the flow dependence of the phase behavior in polymer blends since the morphology and properties of the finished product are influenced to great extent by the details of dynamics of the flowing melt. Experimentally both shear induced mixing and shear induced demixing phenomena have been observed under a variety of operational conditions. The primary objective of this book is to explain the phase behavior under industrially realistic deformation rates using a partially miscible SAN/PMMA blend as an example and to clarify the effect of shear flow on morphology of injection-molded sample. The reader will briefly learn the basic Thermodynamics of phase separation, Thermodynamics of polymer blends, and how to detect polymer miscibility by using Raman Spectroscopy and other techniques. The effect of shear flow on phase behavior of polymer blend is demonstrated theoretically and experimentally.
Author : Kal Renganathan Sharma
Publisher : CRC Press
ISBN 13 : 1439826390
Total Pages : 374 pages
Book Rating : 4.4/5 (398 download)
Download or read book Polymer Thermodynamics written by Kal Renganathan Sharma and published by CRC Press. This book was released on 2011-10-10 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer Thermodynamics: Blends, Copolymers and Reversible Polymerization describes the thermodynamic basis for miscibility as well as the mathematical models used to predict the compositional window of miscibility and construct temperature versus volume-fraction phase diagrams. The book covers the binary interaction model, the solubility parameter approach, and the entropic difference model. Using equation of state (EOS) theories, thermodynamic models, and information from physical properties, it illustrates the construction of phase envelopes. The book presents nine EOS theories, including some that take into account molecular weight effects. Characteristic values are given in tables. It uses the binary interaction model to predict the compositional window of miscibility for copolymer/homopolymer blends and blends of copolymers and terpolymers with common monomers. It discusses Hansen fractional solubility parameter values, six phase diagram types, the role of polymer architecture in phase behavior, and the mathematical framework for multiple glass transition temperatures found in partially miscible polymer blends. The author also illustrates biomedical and commercial applications of nanocomposites, the properties of various polymer alloys, Fick’s laws of diffusion and their implications during transient events, and the use of the dynamic programming method in the sequence alignment of DNA and proteins. The final chapter reviews the thermodynamics of reversible polymerization and copolymerization. Polymer blends offer improved performance/cost ratios and the flexibility to tailor products to suit customers’ needs. Exploring physical phenomena, such as phase separation, this book provides readers with methods to design polymer blends and predict the phase behavior of binary polymer blends using desktop computers.
