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Author : K. Arnold
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (597 download)
Download or read book Control of Molecular Weight Distribution in Polymerisation Processes written by K. Arnold and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Timothy J. Crowley
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (397 download)
Download or read book Control of Molecular Weight Distribution in Free Radical Polymerization Processes written by Timothy J. Crowley and published by . This book was released on 1998 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dillon Gentekos
Publisher :
ISBN 13 :
Total Pages : 299 pages
Book Rating : 4.:/5 (114 download)
Download or read book Molecular Weight Distribution as a Means to Control Polymer Properties written by Dillon Gentekos and published by . This book was released on 2019 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: A process for the precise control of polymer molecular weight distribution (MWD) shape is developed. Temporal control of polymer chain initiation was achieved through the metered addition of discrete initiating species to controlled radical polymerizations and anionic polymerizations. Series of polymers can be prepared with the same molar mass and breadth but with vastly different MWD shapes. Using anionic polymerization, living polymers with skewed distribution functions can be chain extended to afford well-defined block copolymers with systematically deviating compositions of molecular weights. Rheological measurements reveal that the MWD shape has an important influence on the viscoelastic behavior of homopolymer melts such as viscosity and storage modulus. Dynamic mechanical analysis showed that the Young's modulus of block copolymers can be tuned over a broad range by modifying the shape of the MWD in one block. Investigation of the phase behavior of block copolymers by transmission small-angle X-ray scattering and grazing-incidence small-angle X-ray scattering demonstrates that the distribution symmetry enables tuning of the thin film domain spacing and the boundaries of the bulk morphological phase diagram. Additionally, the development of a kinetic model for the predictive design of MWDs is explored.
Author : Joseph Schork
Publisher : Routledge
ISBN 13 : 1351457934
Total Pages : 378 pages
Book Rating : 4.3/5 (514 download)
Download or read book Control of Polymerization Reactors written by Joseph Schork and published by Routledge. This book was released on 2017-09-20 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference and text provides an in-depth description of developments in control techniques and their application to polymerization reactors and offers important introductory background information on polymerization reaction engineering.;Discussing modelling, identification, linear, nonlinear and multivariable schemes, Control of Polymerization Reactors: presents all available techniques that can be used to control reactors properly for optimal performance; shows how to manipulate pivotal variables that affect reactor control; examines methods for deriving dynamic process models to improve reactor efficiency; reviews reactor control problems and points out end-use properties; supplies methods for measuring process variables, and ways to estimate variables that can't be measured; and explains how single-input, single-output (SISO) strategies can be effectively used for control.;Filled with illustrative examples to clarify concepts, including more than 730 figures, tables and equations, Control of Polymerization Reactors is intended for use as a reference for chemical, process development, process design, research and development, control systems, and polymer engineers; and polymer chemists and physicists; as well as a text for upper-level undergraduate and graduate students in polymerization reactor control courses.
Author : Enrique Saldivar-Guerra
Publisher : John Wiley & Sons
ISBN 13 : 1118480775
Total Pages : 660 pages
Book Rating : 4.1/5 (184 download)
Download or read book Handbook of Polymer Synthesis, Characterization, and Processing written by Enrique Saldivar-Guerra and published by John Wiley & Sons. This book was released on 2013-02-28 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering a broad range of polymer science topics, Handbook of Polymer Synthesis, Characterization, and Processing provides polymer industry professionals and researchers in polymer science and technology with a single, comprehensive handbook summarizing all aspects involved in the polymer production chain. The handbook focuses on industrially important polymers, analytical techniques, and formulation methods, with chapters covering step-growth, radical, and co-polymerization, crosslinking and grafting, reaction engineering, advanced technology applications, including conjugated, dendritic, and nanomaterial polymers and emulsions, and characterization methods, including spectroscopy, light scattering, and microscopy.
Author : Philip E. Slade
Publisher :
ISBN 13 :
Total Pages : 360 pages
Book Rating : 4.F/5 ( download)
Download or read book Polymer Molecular Weights written by Philip E. Slade and published by . This book was released on 1975 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mark Francis Ellis
Publisher :
ISBN 13 :
Total Pages : 492 pages
Book Rating : 4.:/5 (319 download)
Download or read book On-line Control and Estimation of the Molecular Weight Distribution in a Batch Polymerization Reactor written by Mark Francis Ellis and published by . This book was released on 1990 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Siu-Yuen Fok
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.:/5 (378 download)
Download or read book Rapid Methods to Estimate the Molecular Weight Distribution of Polymers written by Siu-Yuen Fok and published by . This book was released on 1962 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Aderinola Kolawole Adebekun
Publisher :
ISBN 13 :
Total Pages : 416 pages
Book Rating : 4.:/5 (162 download)
Download or read book On-line Control of Molecular Weight Distribution written by Aderinola Kolawole Adebekun and published by . This book was released on 1987 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Heracilio Ramon Prieto
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (718 download)
Download or read book The Optimization of the Molecular Weight Distribution in Multistage Polymerization Processes written by Heracilio Ramon Prieto and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stefan Polowinski
Publisher : ChemTec Publishing
ISBN 13 : 1895198151
Total Pages : 144 pages
Book Rating : 4.8/5 (951 download)
Download or read book Template Polymerization written by Stefan Polowinski and published by ChemTec Publishing. This book was released on 1997 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Template polymerization is a new field in polymer synthesis but common practice in the biosynthesis since DNA is the most popular template or matrix on which proteins are built by living species. This field is relevant to the synthesis of polymers of controlled structure but its application goes beyond the synthesis. Materials are formulated in complex mixtures always containing components which can be regarded as templates on which other materials are formed, modified, or are interacted with. In the new product development the relevance of these phenomena is controlled by the order of addition which affects probabilities and preferences of interaction. The current publication outlines mechanisms of template polymerization, polycondensation, and copolymerization. These mechanisms, illustrated with numerous examples, indicate a range of possibilities which can be encountered in materials and utilized to modify their properties. Orientation of substrates on template and their effect on modification of their reactivity and properties such as, for example, absorption of light or water are also discussed. Several chapters contain information on these studies discussed with sufficient detail to give reader comprehensive understanding of the methods used in various research laboratories and their findings."--Publisher's description.
Author : Krzysztof Matyjaszewski
Publisher : John Wiley & Sons
ISBN 13 : 0471461571
Total Pages : 934 pages
Book Rating : 4.4/5 (714 download)
Download or read book Handbook of Radical Polymerization written by Krzysztof Matyjaszewski and published by John Wiley & Sons. This book was released on 2003-04-14 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt: Klassische und moderne Verfahren der radikalischen Polymerisation: In diesem handlichen Band finden Sie Antworten auf theoretische und praktische Fragen. Neben grundlegenden Ausführungen zur Einteilung radikalischer Polymere sind Angaben über die wichtigsten experimentellen Verfahren zur Synthese, Reinigung und Charakterisierung von Polymeren enthalten. Interessante Zugabe: ein Abriß der Geschichte der Radikalkettenpolymerisation.
Author : Alfred Rudin
Publisher : Elsevier
ISBN 13 : 0080505473
Total Pages : 529 pages
Book Rating : 4.0/5 (85 download)
Download or read book Elements of Polymer Science & Engineering written by Alfred Rudin and published by Elsevier. This book was released on 1998-09-21 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tremendous developments in the field of polymer science, its growing importance, and an increase in the number of polymer science courses in both physics and chemistry departments have led to the revision of the First Edition. This new edition addresses subjects as spectroscopy (NMR), dynamic light scattering, and other modern techniques unknown before the publication of the First Edition. The Second Edition focuses on both theory (physics and chemistry) and engineering applications which make it useful for chemistry, physics, and chemical engineering departments.
Author : Beverly M. Tanner
Publisher :
ISBN 13 :
Total Pages : 398 pages
Book Rating : 4.:/5 (121 download)
Download or read book Optimal Control of the Molecular Weight Distribution in a Continuous Polymerization Reactor written by Beverly M. Tanner and published by . This book was released on 1985 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tariq M. Raja
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (117 download)
Download or read book Modelling and Control of the Polymerisation of Styrene written by Tariq M. Raja and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis describes a study of polymerisation with the intention of demonstrating the generic feasibility of some control techniques for the production of polymers with prescribed molecular weight distributions. The polymerisation of styrene using thermal and catalytic initiation was used as an exemplar for the purposes of developing the strategies. A number of mathematical models have been developed, including the kinetics of the free-radical bulk polymerisation of styrene initiated thermally and by 2,2'azobisisobutyronitrile (AIBN) catalyst without consideration of the environment in which the reactions occur. The dynamics of the polymerisation process are described in terms of the first three moments of the distribution of dead polymer. These moments were used to characterise the molecular weight distribution of the polymer for the purposes of control. Further, the constraints of carrying out the polymerisation in batch and semi-batch reactors, continuous stirred tank reactors and a tubular reactor have been modelled. Dynamic optimisation using Pontryagin's minimum principle and the kinetic model was used to solve the minimum batch time problem by considering separately and simultaneously the two optimal policies, for initiator and temperature. These policies yield the minimum batch time to produce a polymer product which satisfies a set of target specifications for the molecular weight distribution. Using the kinetic and reactor models together, and the optimal temperature policy as a reference level, a model based predictive controller was employed to assess whether a realistic implementation of the policy could be achieved. A difficulty in the practical, real time control of polymerisation is the lack of on-line measurement of molecular weight. A preliminary study of a model based, non-linear observer was conducted to estimate molecular weight distribution on-line. It was shown that the estimate is robust in the face of disturbances and uncertainty in the initial conditions.
Author : Krzysztof Matyjaszewski
Publisher : John Wiley & Sons
ISBN 13 : 9783527629107
Total Pages : 634 pages
Book Rating : 4.6/5 (291 download)
Download or read book Controlled and Living Polymerizations written by Krzysztof Matyjaszewski and published by John Wiley & Sons. This book was released on 2009-12-23 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a highly prestigious and knowledgeable team of top scientists in the field, this book provides an overview of the current status of controlled/living polymerization, combining the synthetic, mechanistic and application-oriented aspects. From the contents: * Anionic Vinyl Polymerization * Carbocationic Polymerization * Radical Polymerization * Coordinative Polymerization of Olefins * Ring-Opening Polymerization of Heterocycles * Ring-Opening Metathesis Polymerization * Macromolecular Architectures * Complex Functional Macromolecules * Synthesis of Block and Graft Copolymers * Bulk and Solution Structures of Block Copolymers * Industrial Applications While some of the material is based on chapters taken from the four-volume work "Macromolecular Engineering", it is completely updated and rewritten to reflect the focus of this monograph. Must-have knowledge for polymer and organic chemists, plastics technologists, materials scientists and chemical engineers.
Author : Timothy Joseph Crowley
Publisher :
ISBN 13 :
Total Pages : 604 pages
Book Rating : 4.:/5 (39 download)
Download or read book Theoretical and Experimental Study of Polymer Molecular Weight Distribution Modeling and Control in Polymerization Reactors written by Timothy Joseph Crowley and published by . This book was released on 1997 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
