Phase Transitions in Polymers The Role of Metastable States

A classical metastable state possesses a local free energy minimum at infinite sizes, but not a global one. This concept is phase size independent. We have studied a number of experimental results and proposed a new concept that there exists a wide range of metastable states in polymers on different length scales where their metastability is critically determined by the phase size and dimensionality. Metastable states are also observed in phase transformations that are kinetically impeded on the pathway to thermodynamic equilibrium. This was illustrated in structural and morphological investigations of crystallization and mesophase transitions, liquid-liquid phase separation, vitrification and gel formation, as well as combinations of these transformation processes. The phase behaviours in polymers are thus dominated by interlinks of metastable states on different length scales. This concept successfully explains many experimental observations and provides a new way to connect different aspects of polymer physics. * Written by a leading scholar and industry expert * Presents new and cutting edge material encouraging innovation and future research * Connects hot topics and leading research in one concise volume

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  • Author : Stephen Z.D. Cheng
  • Publisher : Elsevier
  • Pages : 324 pages
  • ISBN : 9780080558202
  • Rating : 4/5 from 21 reviews
CLICK HERE TO GET THIS BOOKPhase Transitions in Polymers The Role of Metastable States

Phase Transitions in Polymers: The Role of Metastable States

Phase Transitions in Polymers: The Role of Metastable States
  • Author : Stephen Z.D. Cheng
  • Publisher : Elsevier
  • Release : 10 September 2008
GET THIS BOOKPhase Transitions in Polymers: The Role of Metastable States

A classical metastable state possesses a local free energy minimum at infinite sizes, but not a global one. This concept is phase size independent. We have studied a number of experimental results and proposed a new concept that there exists a wide range of metastable states in polymers on different length scales where their metastability is critically determined by the phase size and dimensionality. Metastable states are also observed in phase transformations that are kinetically impeded on the pathway to

Phase Transitions in Foods

Phase Transitions in Foods
  • Author : Yrjo H Roos,Stephan Drusch
  • Publisher : Academic Press
  • Release : 05 October 2015
GET THIS BOOKPhase Transitions in Foods

Phase Transitions in Foods, Second Edition, assembles the most recent research and theories on the topic, describing the phase and state transitions that affect technological properties of biological materials occurring in food processing and storage. It covers the role of water as a plasticizer, the effect of transitions on mechanical and chemical changes, and the application of modeling in predicting stability rates of change. The volume presents methods for detecting changes in the physical state and various techniques used to

Phase Diagrams and Kinetics of Solid-liquid Phase Transitions in Crystalline Polymer Blends

Phase Diagrams and Kinetics of Solid-liquid Phase Transitions in Crystalline Polymer Blends
  • Author : Rushikesh A. Matkar
  • Publisher : Unknown Publisher
  • Release : 17 September 2021
GET THIS BOOKPhase Diagrams and Kinetics of Solid-liquid Phase Transitions in Crystalline Polymer Blends

"A free energy functional has been formulated based on an order parameter approach to describe the competition between liquid-liquid phase separation and solid-liquid phase separation. In the free energy description, the assumption of complete solvent rejection from the crystalline phase that is inherent in the Flory diluent theory was removed as solvent has been found to reside in the crystalline phase in the form of intercalates. Using this approach, we have calculated various phase diagrams in binary blends of crystalline

Phase Transitions and Structure of Polymer Systems in External Fields

Phase Transitions and Structure of Polymer Systems in External Fields
  • Author : Sergey A. Vshivkov
  • Publisher : Cambridge Scholars Publishing
  • Release : 14 May 2019
GET THIS BOOKPhase Transitions and Structure of Polymer Systems in External Fields

Generalized extensive experimental and theoretical data regarding the phase transitions of polymer systems in mechanical and magnetic fields provide the possibility to predict the results of external field effects on the structure and mutual solubility of components. The data on dynamic structuring in deformed polymer blends and solutions allow for the use of found regularities by the processing of polymer systems. The methods offered in this book allow for the connection of shift of phase diagrams in the mechanical field

Ferroelectric Polymers

Ferroelectric Polymers
  • Author : E. Fukada
  • Publisher : CRC Press
  • Release : 17 September 1989
GET THIS BOOKFerroelectric Polymers

This volume contains four papers commencing with an introduction to early studies in piezoelectricity, pyroelectricity and ferroelectricity in polymers. Other topics discussed include - ferroelectric properties of fluoride copolymers; structural phase transition in ferroelectric fluorine polymers; and pressure effect on phase transition in ferroelectric polymers .

Phase Transitions in Foods

Phase Transitions in Foods
  • Author : Yrjo H. Roos,Stephan Drusch
  • Publisher : Academic Press
  • Release : 01 June 2015
GET THIS BOOKPhase Transitions in Foods

Phase Transitions in Foods, Second Edition, assembles the most recent research and theories on the topic, describing the phase and state transitions that affect technological properties of biological materials occurring in food processing and storage. It covers the role of water as a plasticizer, the effect of transitions on mechanical and chemical changes, and the application of modeling in predicting stability rates of change. The volume presents methods for detecting changes in the physical state and various techniques used to

Responsive Gels: Volume Transitions 1

Responsive Gels: Volume Transitions 1
  • Author : Karel Dusek
  • Publisher : Springer
  • Release : 03 October 2013
GET THIS BOOKResponsive Gels: Volume Transitions 1

Toyiochi Tanaka, Mitsuhiro Shibayama, "Phase Transitions and related Phenomena of Polymer Gels", Akira Onuki "Theory of Phase Transition in Polymer Gels", Alexei Khokhlov, Sergei Starodybtzev, Valentina Vasilevskaya "Conformational Transitions in Polymer Gels: Theory and Experiment", Michal Ilavsky " Effect on Phase Transition on Swellingand Mechanical Behavior of Synthetic Hydrogels", Shozaburo Saito , M. Konno, H. Inomata "Volume Phase Transition of N-Alkylacrylamide Gels", Ronald Siegel "Hydrophobic Weak Polyelectrolyte Gels: Studies of Swelling Equilibria and Kinetics".

Phase Transitions in Cell Biology

Phase Transitions in Cell Biology
  • Author : Gerald H. Pollack,Wei-Chun Chin
  • Publisher : Springer Science & Business Media
  • Release : 15 August 2008
GET THIS BOOKPhase Transitions in Cell Biology

Phase transitions occur throughout nature. The most familiar example is the one that occurs in water – the abrupt, discontinuous transition from a liquid to a gas or a solid, induced by a subtle environmental change. Practically magical, the ever-so-slight shift of temperature or pressure can induce an astonishing transition from one entity to another entity that bears little resemblance to the first. So "convenient" a feature is seen throughout the domains of physics and chemistry, and one is therefore led

Phase Transition Dynamics

Phase Transition Dynamics
  • Author : Akira Onuki
  • Publisher : Cambridge University Press
  • Release : 06 June 2002
GET THIS BOOKPhase Transition Dynamics

Phase transition dynamics is centrally important to condensed matter physics. This 2002 book treats a wide variety of topics systematically by constructing time-dependent Ginzburg-Landau models for various systems in physics, metallurgy and polymer science. Beginning with a summary of advanced statistical-mechanical theories including the renormalization group theory, the book reviews dynamical theories, and covers the kinetics of phase ordering, spinodal decomposition and nucleation in depth. The phase transition dynamics of real systems are discussed, treating interdisciplinary problems in a unified manner.

Handbook of Food Engineering, Third Edition

Handbook of Food Engineering, Third Edition
  • Author : Dennis R. Heldman,Daryl B. Lund,Cristina Sabliov
  • Publisher : CRC Press
  • Release : 19 December 2018
GET THIS BOOKHandbook of Food Engineering, Third Edition

The primary mission of the third edition of Handbook of Food Engineering is to provide the information needed for efficient design and development of processes used in the manufacturing of food products, along with supplying the traditional background on these processes. The new edition focuses on the thermophysical properties of food and the rate constants of change in food components during processing. It highlights the use of these properties and constants in process design. In addition to chapters on the