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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.
With the increasing recognition of the importance of fillers for reinforcing and enhancing polymer properties, current research is progressing rapidly. This volume of Macromolecular Symposia presents highlights of the Eurofillers'99 conference held in Lyon, France, September 6-9, 1999. Recent research furthering our understanding of the properties and processing of fillers and their interactions with polymers was presented, along with new ideas addressing the need for filled polymers with combinations of varied properties. The possibilities presented by nanotechnology were also introduced through contributions concerning investigations into nanofillers, such as clays and whiskers, and nanocomposites.
A brief historical account of the background leading to the publication of the first four editions of the World Directory of Crystallographers was presented by G. Boom in his preface to the Fourth Edition, published late in 1971. That edition was produced by traditional typesetting methods from compilations of biographical data prepared by national Sub-Editors. The major effort required to produce a directory by manual methods provided the impetus to use computer techniques for the Fifth Edition. The account of the production of the first computer assisted Directory was described by S.C. Abrahams in the preface of the Fifth Edition. Computer composition, which required a machine readable dat...
Beginning in the 1950s, a group of academics, businesspeople, and politicians set out on an ambitious project to remake North Carolina’s low-wage economy. They pitched the universities of Raleigh, Durham, and Chapel Hill as the kernel of a tech hub, Research Triangle Park, which would lure a new class of highly educated workers. In the process, they created a blueprint for what would become known as the knowledge economy: a future built on intellectual labor and the production of intellectual property. In Brain Magnet, Alex Sayf Cummings reveals the significance of Research Triangle Park to the emergence of the high-tech economy in a postindustrial United States. She analyzes the use of id...
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This successor to the popular textbook, “Polymer Physics” (Springer, 1999), is the result of a quarter-century of teaching experience as well as critical comments from specialists in the various sub-fields, resulting in better explanations and more complete coverage of key topics. With a new chapter on polymer synthesis, the perspective has been broadened significantly to encompass polymer science rather than “just” polymer physics. Polysaccharides and proteins are included in essentially all chapters, while polyelectrolytes are new to the second edition. Cheap computing power has greatly expanded the role of simulation and modeling in the past two decades, which is reflected in many...
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