Download or read book Hybrid Latex Particles written by Alex M. van Herk and published by Springer Science & Business Media. This book was released on 2010-10-09 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historical Overview of (Mini)emulsion Polymerizations and Preparation of Hybrid Latex Particles, by A.M. van Herk; * Physical Methods for the Preparation of Hybrid Nanocomposite Polymer Latex Particles, by R. F.A. Teixeira and S. A.F. Bon; * Organic/Inorganic Composite Latexes: The Marriage of Emulsion Polymerization and Inorganic Chemistry, by Elodie Bourgeat-Lami and Muriel Lansalot; * Preparation of Hybrid Latex Particles and Core–Shell Particles Through the Use of Controlled Radical Polymerization Techniques in Aqueous Media, by Bernadette Charleux, Franck D’Agosto, and Guillaume Delaittre; * Miniemulsion Polymerization as a Means to Encapsulate Organic and Inorganic Materials, by Clemens K.Weiss and Katharina Landfester; * Organic–Inorganic Hybrid Magnetic Latex, by Md Mahbubor Rahman and Abdelhamid Elaissari

Download or read book Hybrid Latex Particles written by Alex M. van Herk and published by Springer. This book was released on 2010-12-02 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historical Overview of (Mini)emulsion Polymerizations and Preparation of Hybrid Latex Particles, by A.M. van Herk; * Physical Methods for the Preparation of Hybrid Nanocomposite Polymer Latex Particles, by R. F.A. Teixeira and S. A.F. Bon; * Organic/Inorganic Composite Latexes: The Marriage of Emulsion Polymerization and Inorganic Chemistry, by Elodie Bourgeat-Lami and Muriel Lansalot; * Preparation of Hybrid Latex Particles and Core–Shell Particles Through the Use of Controlled Radical Polymerization Techniques in Aqueous Media, by Bernadette Charleux, Franck D’Agosto, and Guillaume Delaittre; * Miniemulsion Polymerization as a Means to Encapsulate Organic and Inorganic Materials, by Clemens K.Weiss and Katharina Landfester; * Organic–Inorganic Hybrid Magnetic Latex, by Md Mahbubor Rahman and Abdelhamid Elaissari

Download or read book Synthesis of Hybrid Latexes and Polymerization Kinetics of Functional Latexes written by Serkan Bas and published by . This book was released on 2009 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Hydrophilic or hydrophobic functional monomers impart unusual properties to latexes. The type, amount, and addition sequence of functional monomers affect the colloidal stability, film formation and mechanical properties of latexes. Carboxylic acid and hydroxyl functional monomers provide reactive sites for crosslinking. The colloidal stability of latex particles can be enhanced by functional groups such as carboxylic acids. The latexes with functional groups can also be used to graft inorganic materials to form hybrid materials. Functional groups on the latexes not only determine the morphology of the latexes, but also the polymerization kinetics. The present work focused on assessing the effects of the type and the amount of functional monomers on the physical properties of hybrid latexes (particle size, solid content, and glass transition temperature, etc.), polymerization kinetics of core-shell latexes and mechanical properties of thermoset latex films. The first aim was to investigate the effect of hydrophobic groups such as polysiloxane on the physical properties of latexes. Polysiloxane-functionalized acrylic latexes were prepared by three different grafting techniques. In the first method, an acrylic core was prepared with the addition of a coupling agent, 3-(trimethoxysilyl) propyl methacrylate, after which a cyclic siloxane monomer (octamethylcyclotetra-siloxane, D4) was grafted onto the coupling agent. In the second method, a methacrylate- terminated polysiloxane was copolymerized with ethyl acrylate (EA) and 2-ethylhexyl acrylate (EHA) in batch emulsion polymerization. In the third method, D4 was added during emulsion polymerization of EA, EHA and 2-hydroxyethyl methacrylate. A core-shell morphology was observed in transmission electron microscopy (TEM) for the first preparation method. Microphase separation was observed by atomic force microscopy (AFM) after polysiloxane-functionalization for all latex films. Energy dispersive X-ray data indicated that only the hybrid latex by copolymerization of methacrylate-terminated polysiloxane (second grafting method) resulted in higher silicon content at the film-air interface than the film-substrate interface. In all methods, storage modulus and surface energy of latex films decreased after polysiloxane-functionalization of latexes. Secondly, the effect of polymerization of hydrophilic functional monomers with different types of surfactant on the polymerization kinetics was investigated. A semi-batch emulsion copolymerization of butyl acrylate (BA), methyl methacrylate (MMA), 2-hydroxyethyl methacrylate (HEMA), and methacrylic acid (MAA) was performed in which the concentration of HEMA (in core), MAA (in shell) and the type of surfactant (two anionic and two nonionic) were varied. New particle formation occurred throughout the polymerization even under almost starved-monomer conditions. The instantaneous rate of polymerization was inversely proportional to the concentration of HEMA and MAA. Secondary nucleation and limited coagulation were more significant when the anionic surfactant (Triton X-200) was used. In general, the smallest particle size was obtained when Triton X-200 was used. Generally, the anionic surfactant (Aerosol MA-80) yielded slower polymerization reactions which were attributed to high critical micelle concentration (CMC) compared to the other surfactants. Finally, the latexes with hydrophilic functional monomers were crosslinked to study the effects of crosslinker type on mechanical properties. The latexes with varying concentrations of HEMA, MAA and two types of surfactants (Tergitol XJ, Triton X-200) were crosslinked with five different types of crosslinkers. Melamine-formaldehyde (MF) resin was employed to crosslink hydroxyl functionalities in the core. Carboxylic acid groups in the shell were crosslinked with zinc ammonium carbonate and N, N1-dicyclohexylcarbodiimide. Cycloaliphatic diepoxide and hexamethylene diisocyanate (HDI) isocyanurate were used to crosslink with hydroxyl or carboxyl functional groups in the core and the shell. The toughest films were obtained when MF resin was used as crosslinker in the tensile test. However, zinc crosslinker yielded brittle films with very low toughness and pencil hardness. The highest Young's modulus was obtained for the latex films when HDI isocyanurate or carbodiimide were used as crosslinker. In general, anionic surfactant (Triton X-200) showed higher crosslink density compared to nonionic surfactant (Tergitol XJ). This was attributed to the broader particle size distribution of the latexes with Triton X-200. Dual-cure (thermal/visible light process) amide- and acrylate-functionalized latexes were prepared via semi-batch emulsion polymerization. Thermoset latex films were prepared by blending amide- and acrylate-functionalized latexes in different fractions (50/50, 40/60, 60/40 wt/wt%). The tensile, dynamic mechanical and thermal properties of the thermoset films were evaluated. The effect of the photosensitizer (camphorquinone) concentration was also investigated on mechanical and thermal properties. Amide- and acrylate-functionalized latexes (50/50 wt/wt) were mixed with different amounts of methanolic camphorquinone and t-butyl hydroperoxide relative to the amount of trimethylolopropane triacrylate (1, 2, 4, and 6 wt% methanolic camphorquinone and t-butyl hydroperoxide). The highest tensile modulus and elongation % was observed in amide- and acrylate-functionalized latex with 50/50 wt% blend ratio. As the concentration of photosensitizer (camphorquinone) increased, storage modulus of films increased. Two glass transition temperatures were observed for the latex films. This could be attributed to the induced phase separation after the crosslinking of acrylic functionalities followed by thermally crosslinking between acetoacetoxy and amide functionalities."--Abstract.

Download or read book Development of Core shell Latex Particles by Emulsion Polymerization written by Lakhya Jyoti Borthakur and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Core-shell particles are structured composite particles consisting of two different materials, one forms the core other forms the shell. Enhanced properties are often achieved in these specially designed particles which cannot be met by blending of two materials. The synthesis of such multiphase particles often provide the opportunity to tailor properties for a range of desired applications such as paints, coatings, cosmetics, drug-delivery, paper industries etc. Core-shell particles may be of many types: inorganic-inorganic, organic-organic (polymer-polymer), hybrid organic-inorganic etc. The present book deals with the development of different types of core-shell particles by emulsion and mini-emulsion polymerization technique and their potential applications in the field of paint, electronics etc.

Download or read book Modern Techniques for Nano and Microreactors reactions written by Frank Caruso and published by Springer Science & Business Media. This book was released on 2010-08-07 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: -Encapsulation by Miniemulsion Polymerization By K. Landfester and C. K. Weiss -Enzyme-Encapsulated Layer-by-Layer Assemblies: Current Status and Challenges Toward Ultimate Nanodevices By K. Ariga, Q. Ji, and J. P. Hill -Non-LBL Assembly and Encapsulation Uses 1 of Nanoparticle-Shelled Hollow Spheres 2 By G.C. Kini, S. L. Biswal, and M. S. Wong -Polymersomes: A Synthetic Biological Approach to Encapsulation and Delivery By M. Massignani, H. Lomas, and G. Battaglia -Reaction Vessels Assembled by the Sequential Adsorption of Polymers By A.D. Price, A.P.R. Johnston, G.K. Such, and F. Caruso

Download or read book Characterization Techniques for Polymer Nanocomposites written by Vikas Mittal and published by John Wiley & Sons. This book was released on 2012-08-07 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: With its focus on the characterization of nanocomposites using such techniques as x-ray diffraction and spectrometry, light and electron microscopy, thermogravimetric analysis, as well as nuclear magnetic resonance and mass spectroscopy, this book helps to correctly interpret the recorded data. Each chapter introduces a particular characterization method, along with its foundations, and makes the user aware of its benefits, but also of its drawbacks. As a result, the reader will be able to reliably predict the microstructure of the synthesized polymer nanocomposite and its thermal and mechanical properties, and so assess its suitability for a particular application. Belongs on the shelf of every product engineer.

Download or read book Hybrid Materials written by Guido Kickelbick and published by John Wiley & Sons. This book was released on 2007-02-27 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid materials have currently a great impact on numerous future developments including nanotechnology. This book presents an overview about the different types of materials, clearly structured into synthesis, characterization and applications. A perfect starting point for everyone interested in the field, but also for the specialist as a source of high quality information.

Download or read book Polymer Reaction Engineering of Dispersed Systems written by Werner Pauer and published by Springer. This book was released on 2018-11-19 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Download or read book Hybrid Polymer Composite Materials written by Vijay Kumar Thakur and published by Woodhead Publishing. This book was released on 2017-06-03 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid Polymer Composite Materials: Processing presents the latest on these composite materials that can best be described as materials that are comprised of synthetic polymers and biological/inorganic/organic derived constituents. The combination of unique properties that emerge as a consequence of the particular arrangement and interactions between the different constituents provides immense opportunities for advanced material technologies. This series of four volumes brings an interdisciplinary effort to accomplish a more detailed understanding of the interplay between synthesis, structure, characterization, processing, applications, and performance of these advanced materials, with this volume focusing on their processing. Provides a clear understanding of the present state-of-the-art and the growing utility of hybrid polymer composite materials Includes contributions from world renowned experts and discusses the combination of different kinds of materials procured from diverse resources Discusses their synthesis, chemistry, processing, fundamental properties, and applications Provides insights on the potential of hybrid polymer composite materials for advanced applications

Download or read book Particle Stabilized Emulsions and Colloids written by To Ngai and published by Royal Society of Chemistry. This book was released on 2014-11-13 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been much scientific interest in the behaviour of colloidal particles at liquid interfaces. From a research aspect they provide model systems for fundamental studies of condensed matter physics. From a commercial aspect they provide applications for making new materials in the cosmetics, food and paint industries. In many cases of colloidal particles at interfaces, the mechanism of particle interactions is still unknown. Particle-Stabilized Emulsions and Colloids looks at recent studies on the behaviour of particles at liquid interfaces. The book first introduces the basic concepts and principles of colloidal particles at liquid-liquid interfaces including the interactions and conformations. The book then discusses the latest advances in emulsions and bicontinuous emulsions stabilized by both solid and soft particles and finally the book covers applications in food science and oil extraction. With contributions from leading experts in these fields, this book will provide a background to academic researchers, engineers, and graduate students in chemistry, physics and materials science. The commercial aspects will also be of interest to those working in the cosmetics, food and oil industry.

Download or read book Hybrid and Hierarchical Composite Materials written by Chang-Soo Kim and published by Springer. This book was released on 2015-04-08 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses a broad spectrum of areas in both hybrid materials and hierarchical composites, including recent development of processing technologies, structural designs, modern computer simulation techniques, and the relationships between the processing-structure-property-performance. Each topic is introduced at length with numerous and detailed examples and over 150 illustrations. In addition, the authors present a method of categorizing these materials, so that representative examples of all material classes are discussed.

Download or read book Miniemulsion Polymerization Technology written by Vikas Mittal and published by John Wiley & Sons. This book was released on 2011-01-25 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explains miniemulsion technology and techniques and why they have many distinct advantages over the conventional emulsion polymerization technology Miniemulsion Polymerization Technology comprises 10 papers by many of the world's experts on the subject. It summarizes the recent advances in miniemulsion polymerization technology including the advances on the selection of surfactants and co-surfactants, the expansion of miniemulsion technology in various polymers and co-polymer systems, and the use of miniemulsion polymerization for the synthesis of advanced polymer particle morphologies. There have been a large number of texts on emulsion and other forms of polymerization methods, but miniemulsion polymerization, though it provides unique routes for polymer particle synthesis, has been neglected. This edited volume: Details the use of miniemulsion polymerization in encapsulation, core shell functional particles, nitroxide mediated polymerization, atom transfer radical polymerization or radical addition fragmentation chain transfer polymerization, to generate advanced polymer nanoparticles or organic-inorganic composite particles Examines the wide spectrum of commercial possibilities of miniemulsion polymerization Provides both introductory material as well as deep insights into the synthesis of polymer particles

Download or read book Latex and Synthetic Polymer Dispersions 2013 written by Smithers Rapra and published by Smithers Rapra. This book was released on 2013-11-13 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 8th Smithers Rapra conference on Latex and Synthetic Polymer Dispersions gave a very broad picture of the industry. These proceedings cover all the presentations from the two day event which included: The scientific principles underlying latex dipping were described by Professor C. C. Ho, and Dr, Aik Hwee Eng of Ansell spoke about a modern result of dipping - the antimicrobial glove. Very interesting observations about the allergenic potential of synthetic latex gloves compared to those dipped from natural rubber were made by Hardi Tamm of Korymbos. The use of gamma radiation from the very start of the process, as a means of prevulcanization, to the end of the production process, in sterilization, was described by Dr. Rosamma Alex of the Rubber Research Institute of India and Eric Beers of Nordion respectively. The versatility of natural latex was demonstrated in a paper by Dr. Azura of Universiti Sains Malaysia, who showed us how it can be used for the cleaning of compression moulds. Innovative polymer synthesis in the manufacture of latex dispersions was presented by Dr. Joachim Storsberg of the Fraunhofer Institute, and Dr. Soeren Butz of Synthomer told how more clever chemistry could be used to "e;tailor-make"e; pressure sensitive adhesives. The environmental side of the industry was not forgotten, with two presentations from the Malaysian Rubber Board - Muhammad D Syraarani describing an environmentally friendly method for the analysis of magnesium in latex and Dr. Devaraj Veerasamy presenting the use of ultrafiltration to process latex. In a similar vein, Prof. Khairah Haji Badri, of the Universiti Tun Abdul Rahman showed how natural resources such as palm oil can be used to create useful polymers. David Hill of David Hill and Associates described how to carry out Process Validation of dipped condoms and gloves, and the delegates were told how the newest latex for dipping - synthetic polyiosprene - compares with the oldest - natural rubber - by Dr. Bert Krutzer of Kraton. The conference ended with Dr. Siby Varghese of the Rubber Research Institute of India, and Prof. Sabu Thomas of the Mahatma Gandhi University describing recent advances and applications in the field of nanotechnology.

Download or read book Issues in Materials and Manufacturing Research 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 11119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Materials and Manufacturing Research: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Materials and Manufacturing Research. The editors have built Issues in Materials and Manufacturing Research: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Materials and Manufacturing Research in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Materials and Manufacturing Research: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Download or read book Colloids and Colloid Assemblies written by Frank Caruso and published by John Wiley & Sons. This book was released on 2006-12-13 with total page 621 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by outstanding experts in the colloids field, this book deals with the recent developments in the synthesis, modification, utilization and application of colloids. The types covered range from metal nanoparticles through to inorganic particles and polymer latexes. Strategies for their modification to impart new properties will be outlined and ordered assemblies derived from colloid particles and some applications for colloids are shown. A multidisciplinary audience spread throughout academia and industry alike will certainly appreciate this first concise collection of knowledge in book form for this topic.

Download or read book Chemistry and Technology of Emulsion Polymerisation written by A. M. van Herk and published by John Wiley & Sons. This book was released on 2013-05-13 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemistry and Technology of Emulsion Polymerisation 2e provides a practical and intuitive explanation of emulsion polymerization, in combination with both conventional and controlled radical polymerization. For those working in industry, coupling theory with everyday practice can be difficult. By carefully explaining the principles of the reaction, based on well-designed experimental investigation, the book explains how the principles relate to practical application. The second edition of this book includes a new chapter on morphology of latex particles, a rapidly progressing area where modelling the thermodynamic and kinetic aspects of phase separation and morphology has developed into a mature and powerful tool to predict and control morphology of latex particles. Another area that is rapidly progressing is the application of controlled radical polymerisation in emulsion polymerization. Controlled radical polymerisation is used in aiding encapsulation of inorganic particles like pigment particles and clay platelets. These latest developments are included in the second edition.

Download or read book Colloidal Polymers written by Abdelhamid Elaissari and published by CRC Press. This book was released on 2003-08-06 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amidst developments in nanotechnology and successes in catalytic emulsion polymerization of olefins, polymerization in dispersed media is arousing an increasing interest from both practical and fundamental points of view. This text describes ultramodern approaches to synthesis, preparation, characterization, and functionalization of latexes, nanopa