Download or read book The Homogenization of Homopolymer Blends Through Addition of Diblock Polymers written by Mark Alan Hartney and published by . This book was released on 1983 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Homogenizing Properties of Diblock Polymers in Blends of Corresponding Homopolymers written by Mark A. Hartney and published by . This book was released on 1983 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of blends was prepared form homopolymers and diblock coploymers of 1,2-polybutadiene and 1,4-polybutadiene. Samples were studied by dynamic mechanical analysis and transmission electron microscopy to determine whether a homogeneous or heterogeneous morphology existed. Although blends of the homopolymers exhibit phase separation, inclusion of an appropriate amount of a diblock polymer can lead to a homogeneous morphology. The materials examined covered a wide range of molecular weight, composition, and diblock copolymer fraction in the blend, enabling an experimental phase diagram to be determined. These findings are compared with current theories of phase behavior for blends of diblock copolymers and homopolymers. (Author).

Download or read book A Research Project on the Emulsifying and Homogenizing Properties of Block Copolymers in Polymer Blends written by Robert E. Cohen and published by . This book was released on 1987 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ten years of ONR sponsored research in this laboratory has led to a clear and unified view of the emulsifying or homogenizing role of diblock copolymers in blends of amorphous rubbery polymers. Recent work emphasized that a similar, but more complex set of phenomena may be useful in the manipulation of semicrystalline polymer blend morphologies and properties. The research focused on model polymers comprised of nonpolar hydrocarbon repeat units. The work built on strong capabilities for in-house synthesis of the required homopolymers and diblock copolymers and for molecular, morphological, and mechanical characterization of the selected polymers. Keywords: Block copolymers, Emulsions.

Download or read book Homopolymer Induced Microphase Separation of a Homogeneous Diblock Copolymer written by Robert E. Cohen and published by . This book was released on 1983 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Binary polymer blends were prepared from a homogeneous diblock copolymer (1,2 polybutadiene-1,4 polybutadiene) and either of the corresponding homopolymers. Using dynamic mechanical testing and transmission electron microscopy it was shown that the 1,4B homopolymer and the copolymer form homogeneous blends; however, addition of 1,2B homopolymer induces a heterogeneous morphology when present in sufficient proportions. The nature of this homopolymer-induced microphase separation is compared to predictions of a recent theory.

Download or read book Research in Materials written by and published by . This book was released on 1984 with total page 1304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Investigation of Structure and Properties in a Model Set of Diblock Copolymer homopolymer Blends written by Frank Steven Bates and published by . This book was released on 1982 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research in Materials written by Massachusetts Institute of Technology and published by . This book was released on 1984 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Morphologies and Morphological Transitions in Binary Blends of Diblock Copolymer and Homopolymer written by Karen Irene Winey and published by . This book was released on 1991 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phase Separation Dynamics of Homopolymer homopolymer diblock Copolymer Blends written by Su Nee Tan and published by . This book was released on 1998 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Small Angle Scattering Investigation of the Microphase Separation Transition in Diblock Copolymers and Diblock Copolymer homopolymer Blends written by John Neal Owens and published by . This book was released on 1986 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Homogeneous and Heterogeneous Rubbery rubbery Diblock Copolymers and Polymer Blends written by Robert E. Cohen and published by . This book was released on 1981 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large amount of data obtained in previous work is brought together to present a unified picture of the homogeneous/heterogeneous behavior of various two-component polymer systems. The materials under discussion are comprised of various proportions of a rubbery/rubbery diblock copolymer an each of the corresponding rubbery homopolymers. (Author).

Download or read book Phase Behavior of Homopolymer diblock Blends written by Philipp Klaus Janert and published by . This book was released on 1997 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Polymer Blends written by Sabu Thomas and published by John Wiley & Sons. This book was released on 2015-02-09 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Microstucture sic Characterization of Triblock Copolymer homopolymer Blends Using TEM and DSC written by Nilesh Nilkanth Oak and published by . This book was released on 1995 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book SPSJ Annual Meeting written by Kōbunshi Gakkai (Japan) and published by . This book was released on 1995 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Engineered Materials Abstracts written by and published by . This book was released on 1992 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sustainable Polymers from Biomass written by Chuanbing Tang and published by John Wiley & Sons. This book was released on 2017-02-21 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering a unique perspective summarizing research on this timely important topic around the globe, this book provides comprehensive coverage of how molecular biomass can be transformed into sustainable polymers. It critically discusses and compares a few classes of biomass - oxygen-rich, hydrocarbon-rich, hydrocarbon and non-hydrocarbon (including carbon dioxide) as well as natural polymers - and equally includes products that are already commercialized. A must-have for both newcomers to the field as well as established researchers in both academia and industry.