Polymer Yearbook

Author: Richard A. Pethrick
Editor: CRC Press
ISBN: 9783718603411
File Size: 25,67 MB
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This volume contains reviews on state-of-the-art Japanese research presented in the annual Spring and Autumn meetings of the Japanese Polymer Science Society. The aim of this section is to make information on the progress of Japanese Polymer Science, and on topics of current interest to polymer scientists in Japan, more easily available worldwide.

Nonlinear Phenomena In Flows Of Viscoelastic Polymer Fluids

Author: A.I. Leonov
Editor: Springer Science & Business Media
ISBN: 9401112584
File Size: 25,39 MB
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This monograph presents theoretical and experimental studies of flows of elastic liquids. Falling into this category are particularly the melts and concentrated solutions of such flexible-chain polymers as polyethylene, polyisobutylene and polypropylene, all of which are widely used in polymer processing. These polydisperse polymers vary greatly, from batch to batch, in their mechanical properties and 20% variation in a property is believed to be good enough. l 7 All recent books - devoted to the rheology of polymers do not answer the question of which constitutive equations should be used for solving the fluid mechanic problems of polymer processing in the usual case of an appreciable nonlinear region of deformation where nonlinear effects of shear and extensional elasticity are very important. Viscoelastic constitut ive equations cited commonly (see, e.g. Refs 5 and 6) do not describe simultaneously even the simplest cases of deformations, viz. simple shear and uniaxial extension. Moreover, some of them are internally inconsist ent and sometimes display highly unstable behaviour in simple flows without any fundamental reasons. Even more respected molecular ap free from these defects.

Polymers As Electrooptical And Photooptical Active Media

Author: Valery Shibaev
Editor: Springer Science & Business Media
ISBN: 3642798616
File Size: 58,74 MB
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Polymeric materials have special advantages over other materials used for the recording, storage and retrieval of information, telecommunication transmission and visualization of images. The authors describe the synthesis, the physico-chemical behavior and the applications of these highly sensitive macromolecular systems. They discuss the most essential developments in this field. For scientists and professionals working in the field of electrooptical and photooptical polymeric materials.

Liquid Crystal Polymers

Author: N.A. Platé
Editor: Springer Science & Business Media
ISBN: 1489911030
File Size: 17,19 MB
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Drawing a picture of the current situation of this new field, this volume both summarizes the past achievements and analyzes the present unsolved problems.

Mechanical And Thermophysical Properties Of Polymer Liquid Crystals

Author: Witold Brostow
Editor: Springer Science & Business Media
ISBN: 9780412609008
File Size: 25,45 MB
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may never overcome the effects of hysteresis and stress (see Chapters 6 and 12). The first sentence of the reference work, Handbook of Liquid Crystals, reads: The terms liquid crystals, crystalline liquid, mesophase, and mesomorphous state are used synonymously to describe a state of aggregation that exhibits a molecular order in a size range similar to that of a crystal but acts more or less as a viscous liquid: [2] In other words, molecules within a liquid crystalline phase possess some orientational order and lack positional order; furthermore, the shape of a liquid crystalline sample is determined by the vessel in which it is contained rather than by the orientational order of its aggregated molecules. The authors recognized the limitations and imprecision of this definition but, like others preceding them, could not devise a simple and generally applicable one that is better. Regardless, the terms 'liquid crystal' and 'mesophase' should not be used interchangeably. As mentioned above, all liquid crystals are mesophases, but all mesophases are not liquid crystals. Recent studies, employing elaborate and sophisticated analytical techniques, have permitted finer distinctions between classical crystals and mesophases. At the same time, they have made definitions like that from the Handbook of Liquid Crystals somewhat obsolete for reasons other than terminology. One part of the problem arises from the use of a combination of bulk properties (like flow) and microscopic properties (like molecular ordering) within the same definition.

Polyimides And Other High Temperature Polymers Synthesis Characterization And Applications

Author: Kash L. Mittal
Editor: CRC Press
ISBN: 9067644544
File Size: 28,21 MB
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This book is mostly based on papers presented at the Fourth International Symposium on this topic held in Savannah, Georgia. However, in addition to these papers, certain very relevant papers have also been included to broaden the scope and thus enhance the value of this book. Currently there is tremendous interest in these material because of their unique properties and applications in diverse technological areas ranging from microelectronics to aerospace to adhesive bonding. This book is divided into three parts: Part 1: Synthesis and Bulk Characterization; Part 2: Surface and Interface Aspects (Composites and Metallization); and Part 3: Applications. The topics covered include: synthesis of a number of polyimides with tailored properties; nanocomposites for high-performance applications; molecular assembly of polyimides; polyimide L-B films; metallization of polyimides; applications of high temperature polymers as proton exchange membranes; dielectrics, and in textile.

Solvent Crazing Of Polymers

Author: A.L. Volynskii
Editor: Newnes
ISBN: 0444596569
File Size: 28,97 MB
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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.

Polymer Science

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ISBN:
File Size: 59,41 MB
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Polymer Yearbook

Author: Richard Arthur Pethrick
Editor:
ISBN: 9783718603428
File Size: 51,80 MB
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Polymer Science U S S R

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ISBN:
File Size: 49,21 MB
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Surface Phenomena

Author: Maksim Georgievich Tomilin
Editor: SPIE-International Society for Optical Engineering
ISBN:
File Size: 21,61 MB
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Seymour Carraher S Polymer Chemistry

Author: Raymond Benedict Seymour
Editor: Marcel Dekker
ISBN:
File Size: 20,68 MB
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Continuing in the tradition of excellence set by prior editions, this completely updated and enlarged Fourth Edition of Seymour/Carraher's Polymer Chemistry helps students expand their knowledge of general, organic, analytical, and physical chemistry - presenting a holistic approach to inorganic, synthetic, and biological polymers. The Fourth Edition covers important topics of current interest in polymer science, including DNA profiling...recycling codes...smart materials...liquid crystals...ionomers...composites...dendrites...soluble stereoregulating catalysis...additives...monomer synthesis...kinetics...polyethylene...high performance materials...molecular weight concepts...and more.

European Science Notes

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Multiphoton And Light Driven Multielectron Processes In Organics New Phenomena Materials And Applications

Author: F. Kajzar
Editor: Springer Science & Business Media
ISBN: 9780792362715
File Size: 15,81 MB
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Proceedings of the NATO Advanced Research Workshop, Menton, France, 26-31 August, 1999

International Polymer Science And Technology

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File Size: 80,18 MB
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Advances In Polymer Science

Author: Z. A. Rogovin
Editor: John Wiley & Sons
ISBN:
File Size: 33,52 MB
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Advances In Interpenetrating Polymer Networks Volume I

Author: Daniel Klempner
Editor: CRC Press
ISBN:
File Size: 22,53 MB
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Physical Chemistry Of Non Aqueous Solutions Of Cellulose And Its Derivatives

Author: Vera V. Myasoedova
Editor: Wiley-Blackwell
ISBN:
File Size: 15,97 MB
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Cellulose is the most abundant organic polymer on earth. In solution, cellulose derivatives can form liquid crystals which take on characteristics of the solid state with unique optical and physico-mechanical properties. The author presents an overview of modern developments in the physical chemistry of solutions of cellulose and its derivatives. Physical Chemistry of Non-aqueous Solutions of Cellulose and Its Derivatives discusses: * how experimental data and computer simulation can give insight into the factors which influence the interaction of solvent and solute * how phase transitions in solution can be predicted from the solvency of non aqueous solvents for oellulose and its derivatives * the methods for obtaining thermodynamic parameters for solvation in non-aqueous solvents * the rheological properties of lyotropic liquid crystals. The Wiley Series in Solution Chemistry fills the increasing need to present authoritative comprehensive and fully up-to-date accounts of the many aspects of solution chemistry. Internationally recognized experts from research or teaching institutions in various countries are invited to contribute to the series.