Author: Enrique Daniel GomezPublisher:
ISBN:
Category :
Languages : en
Pages : 308
Book Description
Transmission Electron Microscopy of Polymer Blends and Block Copolymers
Author: Enrique Daniel GomezPublisher:
ISBN:
Category :
Languages : en
Pages : 308
Book Description
Electron Microscopy of Polymers
Author: Goerg H. MichlerPublisher: Springer Science & Business Media
ISBN: 3540363521
Category : Technology & Engineering
Languages : en
Pages : 472
Book Description
The study of polymers by electron microscopy (EM) needs special techniques, precautions and preparation methods, including ultramicrotomy. General characteristics of the different techniques of EM, including scanning force microscopy, are given in this hands-on book. The application of these techniques to the study of morphology and properties, particularly micromechanical properties, is described in detail. Examples from all classes of polymers are presented.
Polymer Microscopy
Author: Linda SawyerPublisher: Springer Science & Business Media
ISBN: 0387726284
Category : Science
Languages : en
Pages : 568
Book Description
This extensively updated and revised Third Edition is a comprehensive and practical guide to the study of the microstructure of polymers. It is the result of the authors' many years of academic and industrial experience. Introductory chapters deal with the basic concepts of both polymer morphology and processing and microscopy and imaging theory. The core of the book is more applied, with many examples of specimen preparation and image interpretation leading to materials characterization. Emerging techniques such as compositional mapping in which microscopy is combined with spectroscopy are considered. The book closes with a problem solving guide.
Polystyrene Based Block Copolymers and Blends
Author: Santosh AdhikariPublisher: LAP Lambert Academic Publishing
ISBN: 9783659258244
Category :
Languages : en
Pages : 68
Book Description
In the recent years, the microhardness techniques have found employed widespread applications in polymer research especially in the establishing structure-properties correlations. The technique has been increasingly used in the characterization of homopolymers, copolymers, polymer blends, and polymer composites. In this work, the materials investigated were microphase separated styrene-butadiene block copolymer systems and their blends with the corresponding block copolymer and homopolymer with the aid of the Leitz Microhardness Tester equipped with a square based pyramidal Vickers indenter. The morphology of the samples was studied by means of transmission electron microscopy (TEM). This book will be useful for the researchers working in the fields of block copolymers and nanomaterials with particular interest on the area of microindentation techniques and structures-properties correlations of nanostructured polymeric materials.
Block Copolymers
Author: Francisco Balta CallejaPublisher: CRC Press
ISBN: 9780824703820
Category : Technology & Engineering
Languages : en
Pages : 604
Book Description
A summary of block copolymer chemical structures and synthesis. It discusses physical methods of characterization such as computer simulation, microhardness, dielectric spectroscopy, thermal mechanical relaxation, ultrasonic characterization, transmission electron microscopy, X-ray scattering, and NMR, among others. It also outlines rheological and processing parameters in the multiphase polymer systems with stable microstructures.
Block Copolymers
Author: Ashish Kumar KhandpurPublisher:
ISBN:
Category :
Languages : en
Pages : 434
Book Description
Atlas of Polymer Structures
Author: Goerg H. MichlerPublisher: Carl Hanser Verlag GmbH Co KG
ISBN: 1569905584
Category : Technology & Engineering
Languages : en
Pages : 620
Book Description
Structure and morphology determine the properties of polymeric materials. This atlas provides, with over 2000 high-quality micrographs a comprehensive overview of the structural/morphological diversity of all classes of plastics. All microscopic techniques from light microscopy through scanning and transmission electron microscopy to atomic force microscopy are covered. Another focus is on the changes in plastics morphology occurring under mechanical stress, i.e. the deformation and fracture structures. The extensive visual material will help professionals in research and application fields to determine structure-property correlations of polymeric materials and also improve training and teaching in universities.
Characterization of Polymer Blends
Author: Sabu ThomasPublisher: John Wiley & Sons
ISBN: 3527331530
Category : Science
Languages : en
Pages : 972
Book Description
Filling the gap for a reference dedicated to the characterization of polymer blends and their micro and nano morphologies, this book provides comprehensive, systematic coverage in a one-stop, two-volume resource for all those working in the field. Leading researchers from industry and academia, as well as from government and private research institutions around the world summarize recent technical advances in chapters devoted to their individual contributions. In so doing, they examine a wide range of modern characterization techniques, from microscopy and spectroscopy to diffraction, thermal analysis, rheology, mechanical measurements and chromatography. These methods are compared with each other to assist in determining the best solution for both fundamental and applied problems, paying attention to the characterization of nanoscale miscibility and interfaces, both in blends involving copolymers and in immiscible blends. The thermodynamics, miscibility, phase separation, morphology and interfaces in polymer blends are also discussed in light of new insights involving the nanoscopic scale. Finally, the authors detail the processing-morphology-property relationships of polymer blends, as well as the influence of processing on the generation of micro and nano morphologies, and the dependence of these morphologies on the properties of blends. Hot topics such as compatibilization through nanoparticles, miscibility of new biopolymers and nanoscale investigations of interfaces in blends are also addressed. With its application-oriented approach, handpicked selection of topics and expert contributors, this is an outstanding survey for anyone involved in the field of polymer blends for advanced technologies.
Morphology and Mechanical Behavior of Blends and Diblock Copolymers of 1,2 and 1,4 Polybutadiene
Author: Robert E. CohenPublisher:
ISBN:
Category : Block copolymers
Languages : en
Pages : 110
Book Description
The structure and mechanical properties of a series of polymer blends and block copolymers comprised of medium cis 1,4-polybutadiene and 99% 1,2-polybutadiene have been investigated. Thermal properties (DSC) were determined at two levels of radiation crosslinking and for various sample preparation procedures (solvent and thermal history). Dynamic mechanical spectra (3.5 Hz) were measured over temperature range from 180 to 310K. Transmission electron microscopy was also used for establishing the number phases and the domain size and geometry in the heterogeneous materials. Stress-strain curves were determined for the various samples as a function of crosslink density and casting solvent. Equilibrium swelling ratios were measured for each specimen at the same radiation dose in a good solvent. Swelling values were also obtained in a series of solvents for the parent homopolymers and for a diblock copolymer containing 45% 1,2 polybutadiene.
Developments in Polymer Characterisation—1
Author: J. V. DawkinsPublisher: Springer Science & Business Media
ISBN: 9400996462
Category : Science
Languages : en
Pages : 287
Book Description
Over two decades ago, !he term characterisation covered just those techniques which measured the properties of polymers in solution in order to determine molecular weight and size. The discoveries of stereoregular polymers and polymer crystals created the need for new and advanced techniques for characterising chain structures and bulk properties. Further demands for new and improved characterisation methods for bulk polymers have resulted from the recent development and exploitation of multi phase polymeric systems, such as polymer blends, block and graft copolymers, and polymer composites. Today, therefore, characterisation is a very important part of polymer science. The polymer chemist must know the chain length, chain microstructure and chain conformation of the polymers he or she has prepared, i. e. the determination of molecular properties. The scientist involved in exploiting polymers in such applications as plastics, elastomers, fibres, surface coatings and adhesives must be informed on the morphology and physical and mechanical behaviour of his or her products, i. e. the determination of bulk and surface properties and their dependence on molecular properties. The techniques required for these determinations now cover an extremely wide field. Our aim has been to review a number of techniques critically and in sufficient depth so that the present state and future potential of each technique may be judged by the reader. Three criteria were used in the selection of techniques. First, we wished to present new methods which have been developed actively in the polymer field during the past five years.