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 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 Scientific and Technical Aerospace Reports written by and published by . This book was released on 1984 with total page 1278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polymer Blends and Mixtures written by D.J. Walsh and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: A couple of years ago a small group of people began discus sing the possibility of running an advanced summer school in the area of polymer blends. There had been a number of recent advan ces in this field, and given the considerable interest in these new polymeric materials, we thought such a meeting would be well received both by industry and academia. We wanted it to contain a wide range of background science and technology and also up to date recent advances in the field. It became clear as the discus sion progressed that the experts in the field were scattered over the length and breadth of Europe and North America and thus the cost of bringing them together for a summer school would necessi tate a high registration fee which would deter many of the research workers we wished to attract. The NATO Advanced Study Institute programme enables a subject to be covered in depth and by giving generous funds to cover lecturers' costs ensures that a wide spectrum of research workers can attend. We decided to apply to NATO and this book contains the results of our request. The ASI was funded under the 'Double-Jump' Programme which is not a new Olympic event but a way of supporting courses on sub jects of direct industrial interest. The Institute was also backed by donations from several companies and approximately half those attending were from industrial organisations.
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 Government Reports Announcements Index written by and published by . This book was released on 1984 with total page 1696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermodynamics of Homopolymer homopolymer diblock Copolymer Blends written by Wayne William Maurer and published by . This book was released on 1998 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1984 with total page 1084 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
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 Government Reports Annual Index Keyword A L written by and published by . This book was released on 1984 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research in Materials written by and published by . This book was released on 1990 with total page 440 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 1990 with total page 448 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 Multiphase Polymers written by Stuart L. Cooper and published by . This book was released on 1979 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.
Download or read book Advances in Chemistry Series written by and published by . This book was released on 1950 with total page 664 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:
