Download or read book On the Coarsening of Immiscible Polymer Blends with Cocontinuous Morphologies written by Carlos Rene Lopez-Barron and published by . This book was released on 2009 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kinetically Trapping Co continuous Morphologies in Polymer Blends and Composites written by Le Li and published by . This book was released on 2012 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Co-continuous structures generated from the phase separation of polymer blends present many opportunities for practical application. Due to the large interfacial area in such structures and the incompatibility between the components, such non-equilibrium structures tend to coarsen spontaneously into larger sizes and eventually form dispersed morphologies. Here, we utilize various strategies to kinetically stabilize the co-continuous structures in polymer blend systems at nano- to micro- size scales. In the partially miscible blend of polystyrene and poly(vinyl methyl ether), we took advantage of the spinodal decomposition (SD) process upon thermal quenching, and arrested the co-continuous micro-structures by the addition of nanoparticles. In this approach, the critical factor for structural stabilization is that the nanoparticles are preferentially segregated into one phase of a polymer mixture undergoing SD and form a percolated network (colloidal gel) beyond a critical loading of nanoparticles. Once formed, this network prevents further structural coarsening and thus arrests the co-continuous structure with a characteristic length scale of several microns. Our findings indicate that a key to arresting the co-continuous blend morphology at modest volume fractions of preferentially-wetted particles is to have attractive, rather than repulsive, interactions between particles. For the immiscible blend of polystyrene and poly(2-vinyl pyridine) (PS/P2VP), we presented a strategy to compatibilize the blend by using random copolymers of styrene and 2-vinylpyridine, controlling the degree of immiscibility between PS and P2VP. Based on such compatibilization, co-continuous structured membranes, having characteristic size down to tens of nanometers, were fabricated in a facile way, via the solvent-induced macrophase separation of polymer blend thin films. The feature size was controlled by controlling the film thickness and varying the molecular weight of the PS homopolymer and the random copolymers. As the processing method (solution casting) is simple and the structures are insensitive to the solvent or substrate choices, this approach shows great potential in the large scale fabrication of co-continuous nanoscopic templates on flexible substrates via roll-to-roll processes. Moreover, we proposed a quasi-binary blend system based on the PS/P2VP pair with the addition of a common solvent. An experimentally accessible phase mixing temperature was achieved, and the co-continuous morphologies were generated via thermally induced spinodal decomposition. The addition of solid particles significantly slowed down the coarsening kinetics and, in some cases, arrested the co-continuous structures at ~6 & mum for a short period of time. This study suggests an alternative means to achieve co-continuous structures in polymer solutions and also provides better understanding of the thermodynamics and kinetics of polymer blend phase separation. Our research demonstrates several means of kinetically trapping the non-equilibrium interconnected structures at sub-micron to tens-of-nanometer size scales that are germane to several functions including active layers of photovoltaic cells and polymer-based membranes.
Download or read book Cocontinuous Polymer Blends written by Joel Richard Bell and published by . This book was released on 2007 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanostructured Immiscible Polymer Blends written by Suprakas Sinha Ray and published by Elsevier. This book was released on 2019-09-17 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructured Immiscible Polymer Blends: Migration and Interface covers a wide range of nanoparticle types, emphasizing the mechanisms and parameters involved in the migration of nanofillers inside immiscible polymer blends. This book explores the influence of nanoparticle migration on the localization, and hence, morphology development, electrical conductivity, and met-rheological properties of blended composite materials. As the influence of solid particles, ranging in size from several hundred nanometers to a few microns in immiscible polymer blends has been extensively studied for use as compatibilizers, morphology stabilizers, and reinforcement agents, this book is a timely resource. Outlines techniques used to prepare nanoparticles-modified immiscible polymer blend composites Explains the structural and morphological development, and melt-state rheological behaviors of nanoparticles-modified immiscible polymer blend composites Discusses major industrial applications
Download or read book Handbook of Polymer Blends and Composites written by Cornelia Vasile and published by iSmithers Rapra Publishing. This book was released on 2002 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polymer Morphology written by Qipeng Guo and published by John Wiley & Sons. This book was released on 2016-03-21 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: With a focus on structure-property relationships, this book describes how polymer morphology affects properties and how scientists can modify them. The book covers structure development, theory, simulation, and processing; and discusses a broad range of techniques and methods. • Provides an up-to-date, comprehensive introduction to the principles and practices of polymer morphology • Illustrates major structure types, such as semicrystalline morphology, surface-induced polymer crystallization, phase separation, self-assembly, deformation, and surface topography • Covers a variety of polymers, such as homopolymers, block copolymers, polymer thin films, polymer blends, and polymer nanocomposites • Discusses a broad range of advanced and novel techniques and methods, like x-ray diffraction, thermal analysis, and electron microscopy and their applications in the morphology of polymer materials
Download or read book Nanofillers for Binary Polymer Blends written by Sabu Thomas and published by Elsevier. This book was released on 2024-06-28 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanofillers for Binary Polymer Blends covers major advances in the field of polymer-blend nanocomposites. The book encompasses the fundamentals of polymer blends, various nanofillers, experimental techniques used in their fabrication, the characterization of various polymer blend nanocomposites, and theoretical evaluations of various properties. The properties and potential applications that have been achieved in various polymer blends by the addition of nanofillers are also highlighted. Applications for commercial products, including automotive parts, packaging, construction materials, biotechnology, medical devices, building materials, computer housings, car interiors, etc., are also covered in detail.This is an important reference source for materials scientists and engineers looking to increase their understanding of how nanofillers are being used in polymer blends. Outlines the various types of nanofillers, explaining how the properties of each enhances the morphology, rheology, mechanical, dynamic mechanical, viscoelastic, electrical and thermal properties of polymer blends Provides information on the theory, modeling and simulation of nano-filled polymer blends Assesses the mechanism of selective localization of nanofillers in polymer blends, the effect of localization of nanofillers on the microstructure, and the relative performance of polymer blends
Download or read book Micro and Nanostructured Multiphase Polymer Blend Systems written by Charef Harrats and published by CRC Press. This book was released on 2005-09-29 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Micro- and Nanostructured Multiphase Polymer Blend Systems: Phase Morphology and Interfaces focuses on the formation of phase morphology in polymer blends and copolymers and considers various types of blends including thermosets, thermoplastics, thermoplastic vulcanizates, and structured copolymers. The book carefully debates the processing
Download or read book Sustainable Polylactide Based Blends written by Suprakas Sinha Ray and published by Elsevier. This book was released on 2022-02-16 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable Polylactide-Based Blends provides a critical overview of the state-of-the-art in polylactide (PLA)-based blends, addressing the latest advances, innovative processing techniques and fundamental issues that persist in the field. Sections cover the fundamentals of sustainable polymeric materials, polylactide and polymer blends, current and upcoming processing technologies, structure and morphology characterization techniques for PLA and PLA-based blends, and the processing, morphology development, and properties of polylactide-based blends. Final chapters focus on current and future applications, market potential, key challenges and future outlooks. Throughout the book, theoretical modeling of immiscible polymer blends helps to establish structure-property relationships in various PLA-based polymer blends. With in-depth coverage of fundamentals and processing techniques, the book aims to support the selection of each processing method, along with an understanding of surface chemistry to achieve improved compatibility between phases. Explains fundamental aspects of polylactide-based blends, including characterization methods and property measurement techniques Offers comprehensive and detailed coverage of processing, morphology and properties, all organized by blend material Analyzes novel methods and addresses challenges associated with PLA-based blends, with a focus on applications and market potential
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 Rheology and Processing of Polymer Nanocomposites written by Sabu Thomas and published by John Wiley & Sons. This book was released on 2016-08-25 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rheology and Processing of Polymer Nanocomposites examines the current state of the art and new challenges in the characterization of nanofiller/polymer interactions, nanofiller dispersion, distribution, filler-filler interactions and interfaces in polymer nanocomposites. A one-stop reference resource for important research accomplishments in this area, it benefits academics, researchers, scientists, and engineers in the field of polymer nanocomposites in their daily work.
Download or read book Design and Applications of Nanostructured Polymer Blends and Nanocomposite Systems written by Sabu Thomas and published by William Andrew. This book was released on 2015-09-22 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design and Applications of Nanostructured Polymer Blend and Nanocomposite Systems offers readers an intelligent, thorough introduction to the design and applications of this new generation of designer polymers with customized properties. The book assembles and covers, in a unified way, the state-of-the-art developments of this less explored type of material. With a focus on nanostructured polymer blends, the book discusses the science of nanostructure formation and the potential performance benefits of nanostructured polymer blends and composites for applications across many sectors: electronics, coatings, adhesives, energy (photovoltaics), aerospace, automotive, and medical devices (biocompatible polymers). The book also describes the design, morphology, and structure of nanostructured polymer composites and blends to achieve specific properties. Covers all important information for designing and selecting the right nanostructured polymer system Provides specialized knowledge on self-repairing, nanofibre and nanostructured multiphase materials, as well as evaluation and testing of nanostructured polymer systems Serves as a reference guide for development of new products in industries ranging from electronics, coatings, and energy, to transport and medical applications Describes the design, morphology, and structure of nanostructured polymer composites and blends to achieve specific properties
Download or read book Compatibilization of Polymer Blends written by Ajitha A. R and published by Elsevier. This book was released on 2019-10-10 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compatibilization of Polymer Blends: Micro and Nano Scale Phase Morphologies, Interphase Characterization and Properties offers a comprehensive approach to the use of compatibilizers in polymer blends, examining both fundamental and advanced knowledge in the field. The book begins by introducing polymer blends, describing thermodynamics, miscibility, and phase separation, and explaining the main concepts of compatibilization. Other sections cover theoretical approaches for nearly compatible blends, incompatible blends, nanofillers, physical compatibilization, reactive compatibilization, morphological and structural characterization, and physico-mechanical characterization. Finally, key application areas are covered, including biomedical applications, packaging and automobile engineering. While this book will be a highly valuable reference source for academics, researchers and postgraduate students interested in polymer blends, it will also be ideal for anyone involved in the fields of polymer science, polymer chemistry, polymer physics, materials science, scientists, R&D professionals, and engineers in involved in the development or engineering of polymer products. Offers detailed and systematic coverage of essential and advanced topics relating to the compatibilization of polymer blends Presents a critical analysis of the effect of compatibilization on morphology and thermal, mechanical, electrical and viscoelastic properties of polymer blends Draws on novel studies and state-of-the-art research, discussing the latest issues and developments
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.
Download or read book Multiphase Polylactide Blends written by Mohammadreza Nofar and published by Elsevier. This book was released on 2021-07-15 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiphase Polylactide Blends: Toward a Sustainable and Green Environment guides the reader through fundamentals, science, preparation, and key areas of innovation in polylactide (PLA) blends. Bio-based polymers, and notably PLA, have not only gained increasing interest as a more sustainable alternative but also bring challenges in terms of mechanical, rheological, thermal and physical properties, processability, shapability, and foamability. The use of blends looks to address these, with the development of new types of economically viable and environmentally friendly systems. This is a valuable book for academic researchers, scientists, and graduate students across bio-based polymers, polymer science, chemistry, and materials science, as well as engineers, R&D professionals, and all those in industry with interest in PLA-based blends, biopolymers, and sustainable materials and products. More specifically, the first three chapters of this book overview the fundamentals of thermoplastic polymers, polymer blends, and structure and properties of PLA. These chapters could technically be used as a valuable textbook on the noted topics. The rest of the chapters inclusively study the fundamentals, investigations, and achievements in PLA-based blends with various types of polymers. These include miscible blends of poly L-lactide and poly D-lactide, binary immiscible/miscible blends of PLA with other thermoplastics and elastomers, PLA-based ternary blends and blend nanocomposites, as well as PLA-based blend foams. Overall, this book provides a thorough and critical overview of the state of the art in PLA-based blends, including significant past and recent advances, with the aim of supporting and shaping further research and industrial application of these materials for the development of a green and sustainable future. Overviews the fundamentals of thermoplastic polymers, polymer blends, and the structure and properties of PLA. Provides detailed coverage of the fundamentals and science of PLA blends, including phase miscibility, thermal and mechanical properties, interface and rheological properties, the use of compatibilizers, and phase morphological analysis. Offers a thorough critical overview of the state of the art in processing and development of PLA-based blends, addressing key challenges and future perspectives. Covers the latest advances, including PLA-based ternary blends, blend nanocomposites, and PLA-based blend microcellular foams.
Download or read book Advances in Polymer Blends and Alloys Technology written by Kier Finlayson and published by CRC Press. This book was released on 1994-11-22 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: From Reports in Volume 5 "Recently polymer blends have emerged as one of the most important areas of research activity in the field of polymer science and technology. Because of their satisfactory performance in meeting specific needs of the polymer industry, they have drawn considerable attention in replacing not only many conventional materials, but also some of the polymers that are in vogue. By suitably varying the blend compositions and manipulating the processing conditions, tailor-made products with a unique set of end use properties can be achieved at a much lower cost and within a shorter time than would have been necessary for the development of a new polymer. The usefulness of such blends increases with the increasing range of applications of this type of materials." (Chapter 4) "New and growing demands on polymeric materials cannot be satisfied in future by an assortment extension of basic polymers. Although the introduction of new major-use basic polymer is possible, it seems unlikely in view of current projected economic and technical considerations. On the other hand, new products based on the modification of existing polymers have and will continue to be fruitful areas for both scientific and commercial developments. The driving forces for these developments are: 1. Improved performance, 2. Reduced cost, 3. Present, pending and future legislation dealing with health and environmental issues." (Chapter 11)
Download or read book Processing of Polymer based Nanocomposites written by Suprakas Sinha Ray and published by Springer. This book was released on 2018-09-15 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Processing of polymer nanocomposites usually requires special attention since the resultant structure—micro- and nano-level, is directly influenced by among other factors, polymer/nano-additive chemistry and the processing strategy. This book consolidates knowledge, from fundamental to product development, on polymer nanocomposites processing with special emphasis on the processing-structure-property-performance relationships in a wide range of polymer nanocomposites. Furthermore, this book focuses on emerging processing technologies such as electrospinning, which has very exciting applications ranging from medical to filtration. Additionally, the important role played by the nanoparticles in polymer blends structures has been illustrated in the current book, with special focus on fundamental aspects and properties of nanoparticles migration and interface crossing in immiscible polymer blend nanocomposites. This book focuses heavily on the processing technologies and strategies and extensively addresses the processing-structure-property-performance relationships in a wide range of polymer nanocomposites, such as commodity polymers (chapter 1), engineering polymers (chapter 2), elastomers (chapter 3), thermosets (chapter 4), biopolymers (chapter 5), polymer blends (chapter 6), and electrospun polymer (chapter 7). The important role played by nanoparticles in polymer blends structures in particular is illustrated. The book is useful to undergraduate and postgraduate students (polymer engineering, materials science & engineering, chemical & process engineering), as well as research & development personnel, engineers, and material scientists.
