The Fractal Analysis Of Gas Transport In Polymers
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The Fractal Analysis Of Gas Transport In Polymers
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Author : Georgii Vladimirovich Kozlov
language : en
Publisher: Nova Science Pub Incorporated
Release Date : 2009-01-01
The Fractal Analysis Of Gas Transport In Polymers written by Georgii Vladimirovich Kozlov and has been published by Nova Science Pub Incorporated this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-01-01 with Science categories.
In the present monograph, theoretical structural analysis of the main processes of gas transport in polymeric materials (diffusion, solubility, permeability and selectivity) was offered. The mentioned analysis uses fractal (multifractal) analysis and cluster model of polymers amorphous state structure, based on the local order notions, as a tool for polymeric materials structure description. Besides, for the mentioned gas transport processes description, such modern physical treatments as a multifractal model of fluctuation free volume and the conception of anomalous (strange) diffusion were used. Such approach allows the quantitative description of gas transport processes and their prediction as a function of testing temperature, degree of crystallinity, cross-linking and grafting, and so on. Special attention is given to gas transport processes in multicomponent polymeric systems. A number of practical aspects of theoretical structural analysis application was considered in cases of thermal degradation, interfacial layers formation in polymer composites, stability to cracking in active environments and chemical reactions.
The Structural Stabilization Of Polymers Fractal Models
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Author : Kozlov
language : en
Publisher: CRC Press
Release Date : 2006-07-01
The Structural Stabilization Of Polymers Fractal Models written by Kozlov and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-07-01 with Science categories.
This monograph deals with the structural aspects of transport processes of gases, physical ageing and thermo-oxidative degradation of polymers in detail. Fractal analysis, cluster models of the polymer structurea ‘s amorphous state as well as irreversible aggregation models are used as main structural models. It is shown that the polymer structure
The Fractal Physics Of Polymer Synthesis
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Author : G. V. Kozlov
language : en
Publisher: CRC Press
Release Date : 2013-12-12
The Fractal Physics Of Polymer Synthesis written by G. V. Kozlov and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-12 with Science categories.
Using fractal analysis, irreversible aggregation models, synergetics, and percolation theory, this book describes the main reactions of high-molecular substances. It is the first to give the structural and physical grounds of polymers synthesis and curing based on fractal analysis. It provides a single equation for describing the relationship between the reaction rate constants and the equilibrium constants with the nature of the medium.
Fractal Mechanics Of Polymers
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Author : G. V. Kozlov
language : en
Publisher: CRC Press
Release Date : 2014-11-12
Fractal Mechanics Of Polymers written by G. V. Kozlov and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-11-12 with Science categories.
This new book explores the consideration of relationships that connect the structural and basic mechanical properties of polymeric mediums within the frameworks of fractal analysis with cluster model representations attraction. Incidentally, the choice of any structural model of medium or their combinations is defined by expediency and further usag
The Fractal Physical Chemistry Of Polymer Solutions And Melts
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Author : G. V. Kozlov
language : en
Publisher: CRC Press
Release Date : 2013-12-12
The Fractal Physical Chemistry Of Polymer Solutions And Melts written by G. V. Kozlov and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-12 with Science categories.
This book provides an important structural analysis of polymer solutions and melts, using fractal analysis. The book covers the theoretical fundamentals of macromolecules fractal analysis. It then goes on to discuss the fractal physics of polymer solutions and the fractal physics of melts. The intended audience of the book includes specialists in chemistry and physics of polymer synthesis and those in the field of polymers and polymer composites processing.
Fractal Analysis And Synergetics Of Catalysis In Nanosystems
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Author : G. V. Kozlov
language : en
Publisher: Nova Publishers
Release Date : 2008
Fractal Analysis And Synergetics Of Catalysis In Nanosystems written by G. V. Kozlov and has been published by Nova Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Mathematics categories.
Nanochemistry is a science connected with obtaining and studying of physical-chemical properties of particles having sizes on the nanometer scale. This book addresses polymer synthesis which, according to Melikhov's classification, is automatically part of nanochemistry. This is determined as far as polymeric macromolecules (more precisely macromolecular coils) belong to nanoparticles and polymeric sols and gels - to nanosystems. Catalysis on nanoparticles is one of the most important sections of nanochemistry. The majority of catalytic systems are nanosystems. At heterogeneous catalysis the active substance is tried to deposit on carrier in nanoparticles form in order to increase their specific surface. At homogeneous catalysis active substance molecules have often in themselves nanometer sizes. The most favorable conditions for homogeneous catalysis are created when reagent molecules are adsorbed rapidly by nanoparticles and are desorbed slowly but have high surface mobility and, consequently, high reaction rate on the surface and at the reaction molecules of such structure are formed at which desorption rate is increased sharply. If these conditions are realised in nanosystem with larger probability than in macrosystem, then nanocatalyst has the raising activity that was observed for many systems.
Structure And Properties Of Crosslinked Polymers
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Author : Gasan M Magomedov
language : en
Publisher: Smithers Rapra
Release Date : 2011-03-23
Structure And Properties Of Crosslinked Polymers written by Gasan M Magomedov and has been published by Smithers Rapra this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-03-23 with Science categories.
This book gives a fresh point of view on the curing processes, structure and properties of crosslinked polymers. The general view is that the structure and properties of crosslinked polymers are defined by their density, this book demonstrates that the parameters are defined by the supermolecular (a more precisely, supersegmental structure) of the crosslinked polymers.The quantitative relationships of the structures/properties are obtained for these polymers. Using an epoxy polymer as a nanofiller for a nanocomposite is discussed and a new class of polymer is proposed. The introduction of the nanofiller gives variation in the mechanical properties, degree of crystallinity, gas permeability and so on. The use of these crosslinked polymers as natural nanocomposites is proposed. Practical methods of crosslinked polymer's supersegmental structure regulation are considered, and all the changes that this gives their properties are detailed.This book will be of significance to all material scientists and students of material science.
Gas Transport In Glassy Polymers
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Author : Maria Grazia De Angelis
language : en
Publisher: MDPI
Release Date : 2021-04-22
Gas Transport In Glassy Polymers written by Maria Grazia De Angelis and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-22 with Technology & Engineering categories.
This Special Issue of Membranes focuses on several new aspects of fluid transport in glassy polymers, with application in relevant membrane separations such as gas purification, VOC removal and CO2 capture. In particular, the focus lies on novel experimental techniques, and detailed characterization of specific phenomena like polar and multicomponent interactions during transport. The properties of novel materials, such as mixed matrix membranes based on glassy polymers and different selective fillers, are also presented. A critical review of existing modeling approaches to describe the sorption and transport in glassy polymers suitable for membrane separations is provided, including both macroscopic and atomistic models, and relying both on the standard solution–diffusion process and on the facilitated transport mechanism.
Engineering Of Polymers And Chemical Complexity
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Author : Walter W. Focke
language : en
Publisher: CRC Press
Release Date : 2014-05-21
Engineering Of Polymers And Chemical Complexity written by Walter W. Focke and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-21 with Science categories.
This book provides a vast amount of information on new approaches, limitations, and control on current polymers and chemicals complexity of various origins, on scales ranging from single molecules and nano-phenomena to macroscopic chemicals. Starting with a detailed introduction, the book is comprised of chapters that survey the current progress in particular research fields. The chapters, prepared by leading international experts, yield together a fascinating picture of a rapidly developing research discipline that brings chemical technology and polymers to new frontiers.
Fractal Analysis Of Polymers
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Author :
language : en
Publisher:
Release Date : 2003
Fractal Analysis Of Polymers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.