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.
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Springer Science+Business Media
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978-0-306-40346-0 (9780306403460)
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Schweitzer Klassifikation
Section I. Graft Copolymers.- Morphology and Phase Relationships of Low-Molecular-Weight Polystyrene in Poly (Methyl Methacrylate) and Methyl Methacrylate/ Styrene Copolymers.- Preparation of Highly Branched Graft Copolymers by Chain Transfer Reaction.- Styrene Copolymerization with Rubber. I. Studies of Polystyrene Grafting to Rubber: Molecular Weight Characteristics of Homeo-Polystyrene Matrix.- Styrene Copolymerization with Rubber. II. Relationship between Polymer Morphology and Synthesis Conditions.- Studies of Styrene Copolymerization with Rubber. III. The Process Peculiarities Brought About by the Presence of Aliphatic Mercaptans.- Section II. Block Copolymers.- Techniques of Block Copolymer Preparation.- Preparation of Block Copolymers from Styrene-Acrylonitrile Macroradicals.- Comparison of the Structure-Properties in 2,4 TDI Based Polyether Polyurethanes and Polyurethaneureas.- The Preparation and Photooxidative Degradation of Polyesterurethane-Poly (Methyl Methacrylate) Triblock Copolymers.- Section III. Interpenetrating Polymer Networks.- Interpenetration of Silica in a Network of Cellulose and Divalent Lead to Form Glassy Polymers.- Aspects of Relative Network Continuity and Physical Crosslinks via an Analysis of Polystyrene/Polystyrene Homo-Interpenetrating Polymer Network Literature.- Polyurethane-Acrylic Copolymer Pseudo Interpenetrating Polymer Networks.- Poly(2,6-Dimethyl-l,4-Phenylene Oxide) Polystyrene Interpenetrating Polymer Networks.- Section IV. Polyblends.- Compatibility and Tensile Properties of PPO Blends.- Crystallization from Miscible Polymer Blends.- An Analysis of the Thermal Degradation Under Processing Conditions of ABS/PVC Blends.- Dynamic Viscoelasticity of Wood-Polymer Composites Prepared by an Electron Beam Accelerator.
