NMR Studies of Entangled Polybutadiene Networks, Polymer Crystallization at High Pressure, and Kaolinite-water Systems at High Pressure PDF Download

Author: Donald Ray Brown
Publisher:
ISBN:
Category :
Languages : en
Pages : 244

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Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 638

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Author:
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 564

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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 712

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Author: Günter Reiter
Publisher: Springer Science & Business Media
ISBN: 3540443428
Category : Science
Languages : en
Pages : 403

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Book Description
The classical view on polymer crystallization basically focused on the expla- tion of a few macroscopically observable parameters like the thickness of the resulting lamellar structure and the corresponding growth rates. However, the emerging paradigm for the description of chain crystals is too simple and cannot account for the complex non-equilibrium processes responsible for structure f- mation on various levels, ranging from the nanometer up to the millimeter scale. This complexity detected by several novel experimental results led to a renewed interest in this ”old” topic of polymer crystallization. These new ?ndings c- cern the early stages of the crystallization process, crystal formation in con?ned geometries like ultra-thin ?lms and the competition between (micro)phase s- aration and crystallization in copolymers and blends. In particular, high spatial resolution techniques such as atomic force microscopy provided deeper insight into the molecular organization of crystallizable polymers. Computer simu- tions based on microscopic processes were used to improve our understanding of how polymer crystals are nucleated and how they grow. New ideas emerged about possible multistage pathways which are followed during the formation of polymer lamellae. The importance and the consequences of the non-equilibrium character of polymer crystals got signi?cantly more attention. Links and ana- gies to growth phenomena and pattern formation in general are being developed. However, these ideas are still subject of intensive and controversial discussions.

Author: Jyotishkumar Parameswaranpillai
Publisher: John Wiley & Sons
ISBN: 3527350810
Category : Science
Languages : en
Pages : 389

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Book Description
Control the development of polymer crystals with this groundbreaking introduction Polymer crystallization is a crucial component of polymer development that impacts processing, applications, presentation, and more. Intervention in the polymer crystallization process, in the form of nanofilters, compatibilizers, and more, has the potential to improve optical and chemical properties, improve degrees of crystallinity, and increase hardness of polymer composites. The myriad applications of crystalline polymers make this one of the most exciting and fast-growing fields in polymer research. Polymer Crystallization provides a comprehensive introduction to this field and its most important recent developments. It characterizes and analysis an expansive range of crystalline polymers and discusses possible mechanisms for influencing their crystallization processes to impact a variety of outcomes and applications. These applications include industries from food packaging to automotive parts to medical and aerospace materials. Polymer Crystallization readers will also find: Detailed treatment of polymer morphology, rheology, modeling, and more Thorough introduction to the fundamentals of polymer crystallization Discussion of environmental safety issues and avenues for future research Polymer Crystallization is a useful reference for materials scientists, polymer scientists, biomedical scientists, and advanced undergraduate and graduate students in these and related fields.

Author: Finizia Auriemma
Publisher: Springer
ISBN: 3319506846
Category : Technology & Engineering
Languages : en
Pages : 303

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The series Advances in Polymer Science presents critical reviews of the present and future trends in polymer and biopolymer science. It covers all areas of research in polymer and biopolymer science including chemistry, physical chemistry, physics, material science. The thematic volumes are addressed to scientists, whether at universities or in industry, who wish to keep abreast of the important advances in the covered topics. Advances in Polymer Science enjoys a longstanding tradition and good reputation in its community. Each volume is dedicated to a current topic, and each review critically surveys one aspect of that topic, to place it within the context of the volume. The volumes typically summarize the significant developments of the last 5 to 10 years and discuss them critically, presenting selected examples, explaining and illustrating the important principles, and bringing together many important references of primary literature. On that basis, future research directions in the area can be discussed. Advances in Polymer Science volumes thus are important references for every polymer scientist, as well as for other scientists interested in polymer science - as an introduction to a neighboring field, or as a compilation of detailed information for the specialist. Review articles for the individual volumes are invited by the volume editors. Single contributions can be specially commissioned. Readership: Polymer scientists, or scientists in related fields interested in polymer and biopolymer science, at universities or in industry, graduate students

Author: Theodore Davidson
Publisher:
ISBN:
Category : Polymerization
Languages : en
Pages : 25

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The design and use of two pieces of high pressure apparatus for polymer studies is discussed. One is a hydrostatic pressurestat of 50 cc internal volume for the preparation of large quantities of polymer crystals. The second apparatus is a special cell for performing differential thermal analysis (DTA) on polymers under high pressure and at high temperature. The preparative apparatus is designed for pressures up to 7,000 bars and temperatures up to 300 C. It has been used successfully to grow extended-chain crystals of polyethylene and its copolymers. The actual processes of melting and crystallization under pressure have been followed with the DTA apparatus up to 3,690 bars. Temperature vs. pressure curves have been obtained in this manner for polyethylene and for a copolymer of ethylene with butene-1. It is found that the degree of supercooling increases with pressure. Details are given of the design of both pressure systems and of the DTA cell and circuitry. The selection of materials and pressure fluids for high pressure apparatus is discussed. (Author).

Author: Finizia Auriemma
Publisher: Springer
ISBN: 3319492039
Category : Technology & Engineering
Languages : en
Pages : 298

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Book Description
The series Advances in Polymer Science presents critical reviews of the present and future trends in polymer and biopolymer science. It covers all areas of research in polymer and biopolymer science including chemistry, physical chemistry, physics, material science. The thematic volumes are addressed to scientists, whether at universities or in industry, who wish to keep abreast of the important advances in the covered topics. Advances in Polymer Science enjoys a longstanding tradition and good reputation in its community. Each volume is dedicated to a current topic, and each review critically surveys one aspect of that topic, to place it within the context of the volume. The volumes typically summarize the significant developments of the last 5 to 10 years and discuss them critically, presenting selected examples, explaining and illustrating the important principles, and bringing together many important references of primary literature. On that basis, future research directions in the area can be discussed. Advances in Polymer Science volumes thus are important references for every polymer scientist, as well as for other scientists interested in polymer science - as an introduction to a neighboring field, or as a compilation of detailed information for the specialist. Review articles for the individual volumes are invited by the volume editors. Single contributions can be specially commissioned. Readership: Polymer scientists, or scientists in related fields interested in polymer and biopolymer science, at universities or in industry, graduate students

Author: Giuseppe Allegra
Publisher: Springer
ISBN: 3540315756
Category : Technology & Engineering
Languages : en
Pages : 231

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With contribution by numerous experts.