Solvent Crazing Of Polymers

The problems related to crazing in polymers are of special interest to polymer scientists since only polymers display this universal phenomenon and no analogues are available for low-molecular-mass compounds. The important problems of solvent crazing and the development of a universal description of polymer structure and properties have received much attention from many leading scientists. Nevertheless, some aspects of polymer crazing are still unclear, and scientific activities in this area are in progress. This work provides an up-to-date account of scientific advances in the area of solvent crazing. The principal features and stages of solvent crazing (craze nucleation, craze tip advance, craze thickening, and craze collapse at high strains) are described. Additionally, the authors present information concerning the activities of Russian scientists in this area, which might have escaped the attention of their colleagues because of the language barrier.

Simultaneous action of stress and strain on plastics in contact with specific fluids causes the onset of cracking and embrittlement of plastic known as environmental stress cracking. Since this is responsible for 15% of all failures of plastics components, environmental stress cracking has long been the subject of intensive research. This volume reviews factors that influence environmental stress cracking, and the state of knowledge regarding many families of plastics. Various types of damage, from disfiguring to catastrophic, are discussed in this volume, with the period of time over which the damage occurs. Plastics designers and specifiers will benefit from the wealth of information and data provided.

A physical, mechanism-based presentation of the plasticity and fracture of polymers, covering industrial scale applications through to nanoscale biofluidic devices.

The synthetic counterparts of natural polymeric materials are now finding applications as light weight, mechanically strong, and environmentally stable sheets, fibers, films, adhesives, paints, and foams have replaced most of the commodity and structural materials. The systematic research on the preparation, characterization, and utilization of plastics resulted in creation of polymers often containing a set of several desirable properties in a single polymer. The polymers have established their place in engineering applications as well. Although the bulk of plastics production focuses on relatively simple commodity polymers, the proportion of specially designed and tailor-made plastics for specific and sophisticated applications is also increasing at a great pace. The specialty plastics, as well as their use in specific and sophisticated applications, are the key to the continued scientific growth and technological advances in the new millennium. This book thoroughly covers today's rapidly growing field of specialty polymers and their applications in more sophisticated and specialized areas. It gives the most recent in-depth knowledge and extremely comprehensive details of the chemistry, physics, material science, technology, and device applications of specialty polymers. This comprehensive book containing 16 chapters is the result of the untiring efforts of 35 most renowned experts from the national and international scientific community. This book is thought-provoking to the researchers working in the fields of chemistry, biochemistry, biotechnology, medicine, polymer chemistry, semiconductor physics, material science, electrochemistry, biology, electronics, photonics, material science, solid state physics, nanotechnology, electrical and electronics engineering, optical engineering, device engineering, data storage, etc.

This authoritative, widely cited book has been used all over the world. Properties of Polymers, Fourth Edition incorporates the latest developments in the field while maintaining the core objectives of previous editions: to correlate properties with chemical structure and to describe methods that permit the estimation and prediction of numerical properties from chemical structure, i.e. nearly all properties of the solid, liquid, and dissolved states of polymers. Extends coverage of critical topics such as electrical and magnetic properties, rheological properties of polymer melts, and environmental behavior and failure Discusses liquid crystalline polymers across chapters 6, 15, and 16 for greater breadth and depth of coverage Increases the number of supporting illustrations from approximately 250 (in the previous edition) to more than 400 to further aid in visual understanding

This work sets out to provide an up-to-date account of the physical properties and structure of polymers in the glassy state. Properties measured above the glass transition temperature are therefore included only in so far as is necessary for the treatment of the glass transition process. This approach to the subject therefore excludes any detailed account of rubber elasticity or melt rheology or of the structure and conformation of the long chain molecule in solution, although knowledge derived from this field is assumed where required. Major emphasis is placed on structural and mechanical properties, although a number of other physical properties are included. Naturally the different authors contributing to the book write mainly from their own particular points of view and where there are several widely accepted theoretical approaches to a subject, these are sometimes provided in different chapters which will necessarily overlap to a significant extent. For example, the main theoretical presentation on the subject of glass transition is given in Chapter 1. This is supplemented by accounts of the free volume theory in Chapter 3 and in the Introduction, and a short account of the work of Gibbs and DiMarzio, also in Chapter 3. Similarly, there is material on solvent cracking in Chapters 7 and 9, though the two workers approach the subject from opposite directions. Every effort has therefore been made to encourage cross-referencing between different chapters.