Stationary and Non-Stationary Kinetics of the Photoinitiated Polymerization

Stationary and Non-Stationary Kinetics of the Photoinitiated Polymerization
Author: Medvedevskikh
Publisher: CRC Press
Total Pages: 333
Release: 2004-08-31
Genre: Technology & Engineering
ISBN: 9067644153

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.

Polymer and Biopolymer Analysis and Characterization

Polymer and Biopolymer Analysis and Characterization
Author: Gennadiĭ Efremovich Zaikov
Publisher: Nova Publishers
Total Pages: 270
Release: 2007
Genre: Science
ISBN: 9781600216084

CONTENTS: Preface; Particle boards based on rice husk; Stabilisation of polymers with natural antioxidants; Mechanical performance of composites based on ethylene vinyl-acetate (eva) matrix with powdered in filler; Prediction of mechanical behaviour of hips/pp blends from solubility parameters; Bio-damages of materials. Adhesion of microorganisms on materials surface; Intensification of dust removal process of complex aerohydrodynamic research and the effectiveness of arresting dispersed particles for barbotage -- rotation; Application of a model based on consecutive reactions to polymer degradation; Transport of water as structurally sensitive process characterising morphology of biodegradable polymer systems; Retention Volumes of organic substances on the ester phases; Clay filled rigid polyurethane foams; Kinetics of bimolecular radicals decay in different polymeric matrixes; Mechanism of generation of stable nitrogen-containing radicals in the presence of nitrogen oxides; Hard and soft approaches to analysis of kinetic data; Free-radical mechanisms of formation of polysaccharides radiation destruction products; Generalisation of effects of solvent polymer interaction by means of linear multi-parametric equations; Index.

Conformation of Macromolecules

Conformation of Macromolecules
Author: Y. G. Medvedevskikh
Publisher: Nova Publishers
Total Pages: 270
Release: 2007
Genre: Science
ISBN: 9781600217555

Conformation is statistical property of the macromolecules consisting of a number of N structural units, links, position of which in a space one relatively to other is not inflexibly fixed by chemical bonds and assumes the possible random configurations. The number of possible configurations at N ” 1 is so great that permits to use the statistical methods at their analysis. That is why the conformation is a result of statistical averaging on all possible configurations of the macromolecule. It was for a long time notified and confirmed by computer modelling that the conformation of polymeric chain should be described by self-avoiding random walks statistics (SARW) but not Gaussian random walks statistics, assuming the phantom behaviour of polymeric chains. Nevertheless, Gaussian statistics is dominating at the analysis of thermodynamic, dynamic and kinetic stainings of the macromolecules conformation. This book will be useful for scientists who are engaged in the physical chemistry of polymers and their solutions.

Handbook of Polymer Research

Handbook of Polymer Research
Author: Gennadii Efremovich Zaikov
Publisher: Nova Publishers
Total Pages: 250
Release: 2006
Genre: Science
ISBN: 9781594549007

Polymers are substances containing a large number of structural units joined by the same type of linkage. These substances often form into a chain-like structure. Starch, cellulose, and rubber all possess polymeric properties. Today, the polymer industry has grown to be larger than the aluminium, copper and steel industries combined. Polymers already have a range of applications that far exceeds that of any other class of material available to man. Current applications extend from adhesives, coatings, foams, and packaging materials to textile and industrial fibres, elastomers, and structural plastics. Polymers are also used for most composites, electronic devices, biomedical devices, optical devices, and precursors for many newly developed high-tech ceramics. This new volume presents leading-edge research in this rapidly-changing and evolving field.

Chemical Reactions in Liquid and Solid Phase

Chemical Reactions in Liquid and Solid Phase
Author: Gennadiĭ Efremovich Zaikov
Publisher: Nova Publishers
Total Pages: 212
Release: 2003
Genre: Science
ISBN: 9781590338544

This collection examines the influence of liquid and solid states during radical, ionic, and molecular reactions, specifically how cage effect, diffusion hindrance, donor-acceptor interaction, electrostatic interaction, dispersion forces and other factors affect the rates, mechanism, and direction of chemical reactions. Topics of the 11 papers include spherical hydrogel particles for endovascular embolisation, the synthesis and thermal degradation of phenolic resins, mono-molecular chain termination in dimethacrylate postpolymerisation, and calculating the effect of chain deformation on macromolecule scission. Most of the researchers work in Russia.

Biocide Guanidine Containing Polymers

Biocide Guanidine Containing Polymers
Author: Sivov
Publisher: CRC Press
Total Pages: 157
Release: 2006-03-01
Genre: Science
ISBN: 9047418069

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

Thermal Oxidation of Polymer Blends

Thermal Oxidation of Polymer Blends
Author: Lyudmila Shibryaeva
Publisher: CRC Press
Total Pages: 192
Release: 2006-06-08
Genre: Technology & Engineering
ISBN: 906764451X

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.

Photodegradation and Light Stabilization of Heterochain Polymers

Photodegradation and Light Stabilization of Heterochain Polymers
Author: Niyazi
Publisher: CRC Press
Total Pages: 195
Release: 2006-11-14
Genre: Technology & Engineering
ISBN: 9004153624

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).

Low-Temperature Behaviour of Elastomers

Low-Temperature Behaviour of Elastomers
Author: Bukhina
Publisher: CRC Press
Total Pages: 193
Release: 2007-11-01
Genre: Technology & Engineering
ISBN: 9047422422

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