The Concept of Micellar-Sponge Nanophases in Chemical Physics of Polymers PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download The Concept of Micellar-Sponge Nanophases in Chemical Physics of Polymers PDF full book. Access full book title The Concept of Micellar-Sponge Nanophases in Chemical Physics of Polymers by Yuri Arsenovich Mikheev. Download full books in PDF and EPUB format.
Author: Yuri Arsenovich Mikheev
Publisher: CRC Press
ISBN: 9067644021
Category : Technology & Engineering
Languages : en
Pages : 465
Get Book Here
Book Description
The monograph is intended for elucidation of the novel trend in chemical physics regarding the polymer non-crystalline phase. It stresses the physical phenomena affecting the kinetics and mechanism of chemical reactions proceeding in the non-crystalline polymer matrix (NCPM). NCPM is depicted in terms of a supramolecular (carcass-micellar) model. The model is thought to reflect heterophase packing of polymeric chains, which co-operate as a molecular-chain sponge. The NCPM model presented is proved for adequate description of principal structure-physical phenomena to elaborate the scheme of structural-kinetic modeling of chemical reactions in bulky polymers. Structure-physical phenomena elucidated in the monograph are: - peculiarities of polymer plasticization and polymer blending with liquids; - structural and thermodynamic aspects of sorption of low molecular species; - properties of ESR (spin) probes and optical (molecular) probes; - features of water absorbed by polymers; - mechanical and thermal effects generated by the molecular-chain sponge; - supramolecular aspects of NCPM chemical physics. This monograph includes the structural-kinetic modeling of complex polymer chemical reactions. It deals with the problem of mechanism and kinetics of free radical chain reactions using thermal and photochemical model reactions of dibenzoyl peroxide with glassy-like polymers (cellulose triacetate, polycarbonate, polystyrene, polyamide PA-548), viscoelastic polymers (atactic polypropylene, polyamide PA-548, polyethylene, polyisobutylene, melted poly(ethylene oxide), and isotactic polypropylene. In all cases, the supramolecular heterophase mechanism of the processes, which was unknown for homogeneous systems, was proved. Furthermore, heterophase mechanisms of photochemical reaction between naphthalene and cellulose triacetate and photolysis of poly(methyl methacrylate) proceeding as a photochain reaction are indicated.
Author: Yuri Arsenovich Mikheev
Publisher: CRC Press
ISBN: 9067644021
Category : Technology & Engineering
Languages : en
Pages : 465
Get Book Here
Book Description
The monograph is intended for elucidation of the novel trend in chemical physics regarding the polymer non-crystalline phase. It stresses the physical phenomena affecting the kinetics and mechanism of chemical reactions proceeding in the non-crystalline polymer matrix (NCPM). NCPM is depicted in terms of a supramolecular (carcass-micellar) model. The model is thought to reflect heterophase packing of polymeric chains, which co-operate as a molecular-chain sponge. The NCPM model presented is proved for adequate description of principal structure-physical phenomena to elaborate the scheme of structural-kinetic modeling of chemical reactions in bulky polymers. Structure-physical phenomena elucidated in the monograph are: - peculiarities of polymer plasticization and polymer blending with liquids; - structural and thermodynamic aspects of sorption of low molecular species; - properties of ESR (spin) probes and optical (molecular) probes; - features of water absorbed by polymers; - mechanical and thermal effects generated by the molecular-chain sponge; - supramolecular aspects of NCPM chemical physics. This monograph includes the structural-kinetic modeling of complex polymer chemical reactions. It deals with the problem of mechanism and kinetics of free radical chain reactions using thermal and photochemical model reactions of dibenzoyl peroxide with glassy-like polymers (cellulose triacetate, polycarbonate, polystyrene, polyamide PA-548), viscoelastic polymers (atactic polypropylene, polyamide PA-548, polyethylene, polyisobutylene, melted poly(ethylene oxide), and isotactic polypropylene. In all cases, the supramolecular heterophase mechanism of the processes, which was unknown for homogeneous systems, was proved. Furthermore, heterophase mechanisms of photochemical reaction between naphthalene and cellulose triacetate and photolysis of poly(methyl methacrylate) proceeding as a photochain reaction are indicated.
Author: Gennadiĭ Efremovich Zaikov
Publisher: Nova Publishers
ISBN: 9781600210945
Category : Science
Languages : en
Pages : 340
Get Book Here
Book Description
This book includes reviews on the ozone influence on natural and synthetic rubbers, interactions between micro-organisms and polymers, chitosan (natural polysaccharide) oxidation, nano-phases and kinetic model of chain reactions of polypropylene with peroxides, heat stability of vinylchloride polymers subjected intensive force influences of the pressure with shear type, bio-damages of materials and adhesion of micro-organisms on materials surface, intensification of dust removal process, stationary kinetics of the linear polymerisation till the high conversions, stationary kinetics of 3D polymerisation till the high conversions, and the study of the grossing process in the grosses of fluted type.
Author: Sivov
Publisher: CRC Press
ISBN: 9047418069
Category : Science
Languages : en
Pages : 157
Get Book Here
Book Description
This volume deals with chemistry of polyelectrolytes, namely biocide guanidine containing polymers, discussing both synthesis of new guanidine containing monomers of diallyl and acrylic nature and their structure and investigation of their radical (co)polymerization and properties of new (co)polymers.The first parts of the book describe radical pol
Author: Niyazi
Publisher: CRC Press
ISBN: 9004153624
Category : Technology & Engineering
Languages : en
Pages : 195
Get Book Here
Book Description
Photodegradation and light stabilization are very important aspects of polymer aging. Polymer degradation includes different types of processes: thermodegradation, oxidation, acting of ozone, photodegradation, radiation, hydrolysis, mechanical degradation, and biodegradation. It is very important to know the mechanism of polymer degradation in order to select stabilizers against the degradation. This volume presents the analysis of achievements in the field of photodegradation of polymers. It includes, first of all, data of Russian investigators who have decisively contributed in the development of this field of knowledge (the schools headed by academicians V.V. Korshak, N.M. Emanuel, N.S. Enikolopov, A.A. Berlin, and many others).
Author: Lyudmila Shibryaeva
Publisher: CRC Press
ISBN: 906764451X
Category : Technology & Engineering
Languages : en
Pages : 192
Get Book Here
Book Description
To identify the specific features of the kinetics of oxidation of polymer mixtures, determine the key structural elements, and create a model that can describe the mechanism of thermal oxidation of polymer mixtures, it is necessary to determine the relation between the initial structure of a polymer mixture, structural rearrangements associated with oxidation and the kinetics of the process. The aim of this book is to elucidate the complicated problem concerning the connection between the structure and mechanism of oxidation of heterogeneous and heterophase polymer systems. The material presented in this book concerns the specific features of the kinetics of oxidation and those of the structure of polymer systems. The book deals with an analysis of the key factors that can affect principally the mechanism of thermal oxidation of polymer mixtures, determines the role of the phase morphology, structure of components, and the interface layer (or boundary) in the kinetics of oxidation of heterophase system by an example of mixtures of polyolefines. Along with the kinetics of oxidation of heterophase systems, problems of investigation of their structural parameters in the oxidized state are considered. With this aim, the material presented in the book concerns not only the mechanism of oxidation of polymer mixtures but also homopolymers of diverse morphology and model systems.
Author: Medvedevskikh
Publisher: CRC Press
ISBN: 9067644153
Category : Technology & Engineering
Languages : en
Pages : 333
Get Book Here
Book Description
The main focus in this monograph is on models of the kinetics of photo-initiated polymerization of mono- and bi-functional monomers up to the high conversion stage, their derivation, analysis and comparison with the experimental data. This monograph can be useful for scientists, engineers, post-graduate training students and students who are interested in problems both of the polymerization kinetics and general chemical kinetics.
Author: Kalugina
Publisher: CRC Press
ISBN: 906764417X
Category : Technology & Engineering
Languages : en
Pages : 289
Get Book Here
Book Description
This book presents investigation results of thermal transformations in thermoresistant polymers: polysulfones, polyester-imides, aliphatic-aromatic polyimides and polyamides, liquid-crystal aromatic co-polyesters, polyphenylquinoxalines at temperatures of materials and articles processing and operation. An important result of investigations is the determination of thermooxidative degradation regularities for aliphatic-aromatic heterochain polymers and description of the degradation mechanism. The applied aspect of this work is the approach to stabilization of thermoresistant polymers and composite materials derived from them using additives and analysis of the mechanism of high-temperature inhibited oxidation. The book presents results which have been obtained through many years of research until recently, mostly obtained by scientists of G.S. Petrov Research Institute of Polymeric Materials (Moscow, Russia) – one of the leading Institutes in this branch - which have not been available in international scientific publications before.
Author: Bukhina
Publisher: CRC Press
ISBN: 9047422422
Category : Technology & Engineering
Languages : en
Pages : 193
Get Book Here
Book Description
This book focuses on the effect the composition of rubbers and the conditions of their processing have on low-temperature resistance. It considers the nature and development of two physical processes, glass transition and crystallization, determining low-temperature behavior of elastomers. The book addresses the effects of deformation, pressure, an
Author: Khananashvili
Publisher: CRC Press
ISBN: 9047410351
Category : Science
Languages : en
Pages : 508
Get Book Here
Book Description
New fields of science and technology call for new materials with valuable performance characteristics. Long-term resistance to such temperatures can be found only in polymers with chains made up of thermostable fragments. Particularly interesting in this respect are elementorganic polymers with inorganic and organo-inorganic molecular chains. Eleme
Author: Gennadiĭ Efremovich Zaikov
Publisher: Nova Publishers
ISBN: 9781604560794
Category : Medical
Languages : en
Pages : 244
Get Book Here
Book Description
This book presents significant research on antioxidants for chemistry and biology, kinetics and mechanisms of molecular, radical and ion reactions in chemistry and biochemistry, chemistry of ozone (reactions of ozone with organic and inorganic compounds, action of antiozonants), application of electron magnetic resonance and nuclear magnetic resonance in chemistry and biology, investigations of the structure and properties of nanocomposites (nanotubes, particularly), investigations on the structure and properties of nanocomposites (nanotubes, particularly), investigations of heterogeneous-heterophases mechanisms of reaction in polymer matrix, preparation and using of organic papanagnets for investigation of radical reactions in chemistry and biology, investigation of kinetic parameters in biochemical reactions, new designs for processing, mechanisms of oxidation and stabilisation of organic compounds (including polymers), polymer blends, composites and filled polymers (preparation, properties and application), and information about genetic construction, reactions with participants of enzymes.
