Download or read book Polymer Alloys III written by Daniel Klempner and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: On this, the dawning of a new age in high technology, man is seeking answers to increasingly complex problems. We are routinely launching reusable vehicles into space, designing and building computers with seemingly limitless powers, and developing sophisticated communications systems using laser technology, fiber optics, holography, etc., all of which require new and advanced materials. Polymer alloys continue to provide new solutions to the materials problems, and remain an area of ever increasing research. Polymer alloys are mu1ticomponent macromolecular systems. The components may be all on the same chain (as in block co polymers), on side chains (as in graft copolymers), or in different molecules (as in po1yb1ends and interpenetrating polymer networks). The variety of morphologies possible and the synergistic effects on ultimate properties continue to stimulate research on new polymer alloys. More and more studies on synthesis of new alloys, the kinetics and mecha nisms of their formation, and their characterization, are taking place, as well as studies on their processing and applications. This book presents the proceedings of the Symposium on Polymer Alloys, sponsored by the American Chemical Society's Division of OrganiC Coatings and Plastics Chemistry held at the 182nd meeting of the American Chemical Society in New York, in August, 1981. The most recent efforts of scientists and engineers from allover the world in this increasingly important field are presented in the following pages.

Download or read book Polymer Alloys III written by Daniel Klempner and published by . This book was released on 2014-01-15 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Alloys II written by Daniel Klempner and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: The term "alloy" as pertaining to polymers has become an increasingly popular description of composites of polymers, parti cularly since the publication of the first volume in this series in 1977. Polymer alloy refers to that class of macromolecular materials which, in general, consists of combinations of chemically different polymers. The polymers involved in these combinations may be hetero geneous (multiphase) or homogeneous (single phase). They may be linked together with covalent bonds between the component polymers (block copolymers, graft copolymers), linked topologically with no covalent bonds (interpenetrating polymer networks), or not linked at all except physically (polyblends). In addition, they may be linear (thermoplastic), crosslinked (thermosetting), crystalline, or amorphous, although the latter is more common. To the immense satisfaction - but not surprise - of the editors, there has been no decrease in the research and development of polymer alloys since the publication of the first volume, as evidenced by numerous publications, conferences and symposia. Continued advances in polymer technology caused by the design of new types of polymer alloys have also been noted. This technolog ical interest stems from the fact that these materials very often exhibit a synergism in properties achievable only by the formation of polymer alloys. The classic examples, of course, are the high impact plastics, which are either polyblends, block, or graft co polymers composed of a rubbery and a glassy polymer. Interpene trating polymer networks (IPN's) of such polymers also exhibit the same, or even greater, synergism.

Download or read book Polymer Alloys III written by American Chemical Society and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Blends and Alloys written by George P. Simon and published by Routledge. This book was released on 2019-07-16 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: Distinguishing among blends, alloys and other types of combinations, clarifying terminology and presenting data on new processes and materials, this work present up-to-date and effective compounding techniques for polymers. It offers extensive analyses on the challenging questions that surround miscibility, compatibility, dynamic processing, interaction/phase behaviour, and computer simulations for predicting behaviours of polymer mixture and interaction.

Download or read book Polymer Blends and Alloys written by M.J. Folkes and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: P. S. HOPE and M. J. FOLKES Mixing two or more polymers together to produce blends or alloys is a well-established strategy for achieving a specified portfolio of physical proper ties, without the need to synthesise specialised polymer systems. The subject is vast and has been the focus of much work, both theoretical and experimental. Much ofthe earlier work in this field was necessarily empirical and many ofthe blends produced were of academic rather than commercial interest. The manner in which two (or more) polymers are compounded together is of vital importance in controlling the properties of blends. Moreover, particular ly through detailed rheological studies, it is becoming apparent that process ing can provide a wide range of blend microstructures. In an extreme, this is exemplified by the in situ formation of fibres resulting from the imposition of predetermined flow fields on blends, when in the solution or melt state. The microstructures produced in this case transform the blend into a true fibre composite; this parallels earlier work on the deformation of metal alloys. This type of processing-structure-property correlation opens up many new possi bilities for innovative applications; for example, the production of stiff fibre composites and blends having anisotropic transport properties, such as novel membranes. This book serves a dual purpose.

Download or read book Polymer Alloys II written by Daniel Klempner and published by . This book was released on 1980-03-01 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Alloys written by Daniel Klempner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alloy is a term commonly associated with metals and implies a composite which may be sinqle phase (solid solution) or heterophase. Whichever the case, metallic alloys generally exist because they exhibit improved properties over the base metal. There are numer ous types of metallic alloys, including interstitial solid solutions, substitutional solid solutions, and multiphase combinations of these with intermetallic compounds, valency compounds, electron compounds, etc. A similar situation exists with polymers. There are numerous types of composites, or "alloys" of polymers in existence today with new ones being created continuously. Polyblends are simple physical mixtures of the constituent polymers with no covalent bonds occuring between them. As with metals, these may be homogeneous (single phase) solid solytions or heterogeneous (multiple phase) mixtures. With polymers, the latter case is by far the most prevalent situation due to the thermodynamic incompatibility of most polymers. This is due to the relatively small gain in entropy upon mixing the polymers due to contiguity restrictions imposed by their large chain length.

Download or read book Polymer Alloys II written by Daniel Klempner and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Polymer Blends and Alloys Technology Volume II written by Kier Finlayson and published by Routledge. This book was released on 2018-12-13 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: From Reports in Volume 5: "Recently polymer blends have emerged as one of the most important areas of research activity in the field of polymer science and technology. Because of their satisfactory performance in meeting specific needs of the polymer industry, they have drawn considerable attention in replacing not only many conventional materials, but also some of the polymers that are in vogue. By suitably varying the blend compositions and manipulating the processing conditions, tailor-made products with a unique set of end use properties can be achieved at a much lower cost and within a shorter time than would have been necessary for the development of a new polymer. The usefulness of such blends increases with the increasing range of applications of this type of materials." (Chapter 4) "New and growing demands on polymeric materials cannot be satisfied in future by an assortment extension of basic polymers. Although the introduction of new major-use basic polymer is possible, it seems unlikely in view of current projected economic and technical considerations. On the other hand, new products based on the modification of existing polymers have and will continue to be fruitful areas for both scientific and commercial developments. The driving forces for these developments are: 1. Improved performance, 2. Reduced cost, 3. Present, pending and future legislation dealing with health and environmental issues." (Chapter 11)

Download or read book Advances in Polymer Blends and Alloys Technology written by Kier Finlayson and published by CRC Press. This book was released on 1989-10-10 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study shows the impact resistance of polypropylene toughened by an ethylene-propylene elastomer. The objective was to modify polystyrene with linear thermoplastic elastomer of styrene-isoprene-styrene triblock copolymer and polystyrene with ethylene-propylene rubber by weight by melt blending.

Download or read book Polymer Alloys and Blends written by L. A. Utracki and published by . This book was released on 1990-01 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to polymer alloys and blends.

Download or read book Advances in Polymer Blends and Alloys Technology Volume III written by Melvyn A. Kohudic and published by CRC Press. This book was released on 1991-04-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Blends Handbook written by L. A. Utracki and published by . This book was released on 2014-01-31 with total page 1800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by an international group of highly respected contributors, this fundamental reference work covers all aspects of polymer blends: science, engineering, technology and applications.

Download or read book Polymer Alloys and Blends written by L. A. Utracki and published by . This book was released on 1995 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Alloys written by Daniel Klempner and published by . This book was released on 1978-01-01 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Blends and Composites written by John A. Manson and published by Springer Science & Business Media. This book was released on 1976 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. Homopolymer Structure and Behavior.- 1.1. High Polymers.- 1.2. Molecular Size and Shape.- 1.2.1. Chain Conformation.- 1.2.2. Chain Entanglement.- 1.3. Molecular Structure.- 1.3.1. Configurations of Polymer Chains.- 1.3.2. Stereo and Geometrical Isomerism.- 1.3.3. Random Branching.- 1.3.4. Nonrandom Branching.- 1.3.5. Crosslinking.- 1.4. Crystallinity and Order.- 1.4.1. Fringed Micelle Model.- 1.4.2. Folded-Chain Single Crystals.- 1.4.3. Extended-Chain Crystals.- 1.4.4.Spherulites.- 1.5. Mechanical Response: Elasticity and Viscoelasticity.- 1.5.1. Molecular and Segmental Motion.- 1.5.2. Modulus-Temperature Behavior.- 1.5.3. Five Regions of Viscoelastic Behavior.- 1.5.4. Rubberlike Elasticity.- 1.5.5. Dynamic Mechanical Spectroscopy.- 1.5.6. Stress-Relaxation and Creep Behavior.- 1.5.7. Time-Temperature Relationship.- 1.6. Energetics and Mechanics of Fracture.- 1.6.1. General Approach to Fracture.- 1.6.2. Energy Balance in Fracture.- 1.6.3. Viscoelastic Rupture of Elastomers.- 1.7. Mechanical Testing of Polymers.- 1.7.1. Stress-Strain and Fracture Behavior.- 1.7.2. Impact Strength.- 1.7.3. Fatigue.- Appendix A. Polymer Synthesis.- Appendix B. Basic Mechanical Properties and Relationships.- Bibliography of Polymer Books and Journals.- 2. General Behavior of Polymer Mixtures.- 2.1. Methods of Mixing Polymer Pairs.- 2.1.1. Polymer Blends.- 2.1.2. Graft Copolymers.- 2.1.3. Block Copolymers.- 2.1.4. Interpenetrating Polymer Networks (IPN's).- 2.2. Interdiffusion.- 2.3. Nomenclature.- 2.4. Electron Microscopy.- 2.5. The Incompatibility Problem.- 2.5.1. Thermodynamics of Mixing.- 2.5.2. Polymer-Polymer Phase Diagrams.- 2.6. Bulk Behavior of Two-Phase Polymeric Materials.- 2.6.1. Glass Transitions.- 2.6.2. Modulus-Temperature Behavior of Model Polyblends.- 2.6.3. Stress-Relaxation Behavior.- 2.6.4. The Takayanagi Models.- 2.6.5. Free Volume Model.- 2.6.6. Other Models.- 2.6.7. Morphology-Modulus Interrelationships.- 2.7. Analogy between Polymer Blends and Crystalline Homopolymers.- 2.8. Polymer Blend Chronology.- Appendix A. Counterpart Phase Separation Characteristics of Metallic Alloys and Inorganic Glasses.- Bibliography of Polymer Blend Symposia.- 3. Rubber-Toughened Plastics.- 3.1. Synthesis and Morphology.- 3.1.1. Impact-Resistant Polystyrene.- 3.1.1.1. Solution-Type Graft Copolymers.- 3.1.1.2. Phase Inversion.- 3.1.1.3. Grafting vs. Mechanical Entrapment.- 3.1.2. ABS Resins.- 3.1.2.1. Emulsion Polymerization.- 3.1.2.2. Structure of the Latex Grafts.- 3.1.3. Origin of the Cell Structure.- 3.1.4. Poly(vinyl chloride) Blends.- 3.1.5. Mixed Latex Blends.- 3.2. Physical and Mechanical Behavior of Polyblends.- 3.2.1. The Effect of Compatibility on Transition Behavior.- 3.2.2. Impact Resistance and Deformation.- 3.2.2.1. Impact Behavior.- 3.2.2.2. Tensile and Creep Behavior.- 3.2.2.3. Fatigue Behavior.- 3.2.3. Toughening Mechanisms.- 3.2.3.1. Crazing and Shear Phenomena.- 3.2.3.2. Characteristics of the Rubber.- 3.3. Optical Properties of Polyblends.- 3.4. Oxidation and Weathering of Polyblends.- 4. Diblock and Triblock Copolymers.- 4.1. Synthesis.- 4.1.1. Dilithium Initiators.- 4.1.2. Mechanochemical Methods.- 4.2. Solution Behavior of Block Copolymers.- 4.3. Plastic Compositions.- 4.4. Thermoplastic Elastomers.- 4.5. Long-Range Domain Order.- 4.6. Thermodynamics of Domain Characteristics.- 4.7. Thermodynamic Criteria for Phase Separation.- 4.7.1. Zeroth Approximation.- 4.7.2. Dilute Solution Approach.- 4.7.3. Diffusion Equation Approach.- 4.8. Effect of Solvent Casting on Morphology.- 4.9. Effect of Deformation on Morphology.- 4.10. Mixtures of A-B Blocks with A and B Mechanical Blends.- 4.11. Rheological Behavior of Block Copolymers.- 5. Multiblock Copolymers, Including Ionomers.- 5.1. Segmented Polyurethane Elastomers.- 5.1.1. Modulus and Swelling Behavior.- 5.1.2. Stress-Strain Behavior.- 5.1.3. Stress-Optical Behavior.- 5.1.4. Tensile Strength and Abrasion Resistance.- 5.1.5. Some Generalizations.- 5.2. Carboxylic Rubbers an...