Download or read book A Kinetic Study of Acrylamide Acrylic Acid Copolymerization written by Muhammad Haque and published by . This book was released on 2010 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Homo- and co-polymers of acrylamide (AAm) and acrylic acid (or acrylate salt) (AA) or methacrylic acid (MAA)) are important classes of water-soluble polymers due to their numerous applications in fields such as super absorbents, additives in cosmetics, membrane technology, waste-water treatment and oil field operations. These polymers are generally made by free radical polymerization. For copolymerization reactions it is extremely important to know the details of reaction kinetics in order to ascertain the kinetic effects of different reaction parameters, which ultimately dictate final copolymer composition, microstructure and properties. The reactivity ratios for copolymerization of AAm and AA have been shown to be dependent on pH and they also change with reaction solvent. The present experimental investigation has been performed to study the kinetics of copolymerization of these monomers in aqueous and alcoholic media by considering factors such as type of initiator and solvent, and pH, in order to determine how they affect the reactivity ratios of these monomers. Reactivity ratios were determined by non-linear least squares (NLLS) and the error-in-variables-model (EVM) techniques and full conversion range kinetic investigations were carried out to confirm these values.

Download or read book Clarifying Multi component Polymerization Kinetics for Tailoring Properties of Acrylamide acrylic Acid Copolymers for Enhanced Oil Recovery written by Marzieh Riahinezhad and published by . This book was released on 2015 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among water-soluble polymers, copolymers of acrylamide (AAm) and acrylic acid (AAc) are probably the most common and widely used in practical applications. However, information on the kinetics of the AAm/AAc radical copolymerization is rather scarce. It is also clear, after reviewing the literature, that there is much debate about the details of reaction kinetics for this copolymerization. Reactivity ratios for AAm/AAc copolymerization system exhibit considerable scatter in the published literature, and therefore, there was a need for more definitive values for these reactivity ratios. An appropriate methodology, based on the error-in-variables-model (EVM) framework along with a direct numerical integration (DNI) of the copolymer composition model, was applied in order to determine reliable reactivity ratios. The reliability of the results was confirmed with extensive and independent replication. Furthermore, via an EVM-based criterion for the design of experiments using mechanistic models, optimal feed compositions were calculated, and from these optimal reactivity ratios were re-estimated for the first time based on information from the full conversion range. With respect to copolymerization kinetics, the polymerization medium is well known to play a significant role in terms of pH and ionic strength, because of the electrolyte nature of the monomers. The largely unstudied effect of ionic strength on monomer reactivity ratios and copolymerization rate was investigated in detail.

Download or read book Kinetics and Modeling of the Radical Polymerization of Acrylic Acid and of Methacrylic Acid in Aqueous Solution written by Nils Friedrich Gunter Wittenberg and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The radical polymerization of methacrylic acid, acrylic acid and acrylamide in aqueous solution has been investigated. Detailed kinetic models for both acrylic acid, AA, and methacrylic acid, MAA, have been developed applying the program PREDICI. Good representation of experimental conversion vs. time profiles and molar mass distributions as well as, in case of AA, the branching level could be achieved. The polymerization of MAA has been studied at 35 and 50 °C with focus on the influence of 2-mercaptoethanol, ME, as chain transfer agent, CTA, on reaction kinetics. The rate coefficient of t ...

Download or read book Ullmann s Polymers and Plastics 4 Volume Set written by Wiley-VCH and published by John Wiley & Sons. This book was released on 2016-04-25 with total page 1934 pages. Available in PDF, EPUB and Kindle. Book excerpt: Your personal Ullmann's: Chemical and physical characteristics, production processes and production figures, main applications, toxicology and safety information are all to be found here in one single resource - bringing the vast knowledge of the Ullmann's Encyclopedia to the desks of industrial chemists and chemical engineers. The ULLMANN’S perspective on polymers and plastics brings reliable information on more than 1500 compounds and products straight to your desktop Carefully selected “best of” compilation of 61 topical articles from the Encyclopedia of Industrial Chemistry on economically important polymers provide a wealth of chemical, physical and economic data on more than 1000 different polymers and hundreds of modifications Contains a wealth of information on the production and use of all industrially relevant polymers and plastics, including organic and inorganic polymers, fibers, foams and resins Extensively updated: more than 30% of the content has been added or updated since the launch of the 7th edition of the Ullmann’s encyclopedia in 2011 and is now available in print for the first time 4 Volumes

Download or read book Preparation of Copolymers of Acrylic Acid and Acrylamide for Copper ii Capture from Aqueous Solutions written by Yudong Zhang and published by . This book was released on 2009 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cross-linked copolymers of acrylic acid (sodium acrylate) and acrylamide were synthesized by free radical polymerization. The copolymer hydrogel was studied for capture of copper ion from aqueous solution. Effects of macromolecular structure (i.e., content of the acrylic acid, the quantity of the carboxyl groups neutralized with sodium hydroxide, and the degree of cross-linking) on water-sorption and copper ion uptake were investigated.

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modelling of the Inverse Microsuspension Copolymerization of Acrylamide and Acrylic Acid written by Kirkham Fredrick Hahn and published by . This book was released on 1992 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A study of methods for determining the physical and chemical properties of copolymers of butadiene and acrylic acid written by Kurt H. Quasebarth and published by . This book was released on 1959 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Maro Polymer Notes written by and published by . This book was released on 2001 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1969-10 with total page 1058 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental and Mathematical Modeling Studies of Styrene acrylic Acid Copolymerization Via the FRRPP Process written by Yi Zhao and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Kinetics and Modeling of Free Radical Aqueous Phase Polymerization of Acrylamide with Acrylic Acid at Varying Degrees of Ionization written by CALISTA. Preusser and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Complete Book on Water Soluble Polymers written by NPCS Board of Consultants & Engineers and published by ASIA PACIFIC BUSINESS PRESS Inc.. This book was released on 2009-10-01 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water soluble polymers cover a wide range of highly varied families of products of natural or synthetic origin, and have numerous uses. A water soluble polymer is a polymer that can be diluted in water, with or without the assistance of co solvents and neutralizing agents, to form transparent solutions. They may be classified into two types, totally synthetic polymers and natural products together with their chemically modified derivatives and further can be grouped into three main headings; naturally occurring, semi synthetic and completely synthetic polymers. The water based polymers are quick drying non inflammable, having mild odour and more environmentally acceptability than any other polymers. Most conventional coating polymers at present can be produced in a form that will allow them to be solubilized in water. These include alkydes, polyesters, acrylics epoxies. There are various types of polymerization methods of water soluble polymers such as bulk polymerization, solution polymerization, copolymerization, emulsion polymerization and suspension polymerization. Water soluble polymers are used widely as stabilizers or protective colloids in emulsion polymerization. Its most common use are gum acacia, starch either etherified or in its degraded form, dextrin, polyvinyl alchohol and hydroxyethyl cellulose. Polymers find many applications in oil recovery and production, including areas such as; drilling fluids, cementation of well bore, reservoir fracturing, controlling fluid flow in the reservoir and multistage processes of oil production and refining. The water soluble polymers market encompasses several categories, including starch, cellulose ethers, polyvinylacetate, polyvinyl alcohol and other synthetic water soluble polymers. The starch market is the largest. This book basically deals with flow characteristics of water soluble polymer solutions, emulsion polymerization, water reducible resins, silicone modified alkyds and polyesters, cross linking of water soluble coatings, formulation of water soluble coatings, trouble shooting with water soluble polymers, acrylic solution resins, polyvinylpyrrolidone, commercial uses: compounding and formulating adhesives, methods of polymerization, methods for polymerization of acrylamide, fabrication of water soluble polymers, excluded volume interactions of neutral polymers etc. The book covers classification of water soluble polymers, processes, properties, uses and applications of water soluble polymers with lot of other information. This book will be very resourceful for new entrepreneurs, existing units, technocrats, researchers and technical libraries. 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Download or read book Advances in Nano and Biochemistry written by Pranay Pradeep Morajkar and published by Elsevier. This book was released on 2023-05-23 with total page 619 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Nano and Biochemistry: Environmental and Biomedical Applications gives insights into this advanced interdisciplinary science that encompasses the principles of physics and physical chemistry for the investigation of various processes and problems in biological systems. The book is a concise culmination of biophysical chemistry knowledge acquired through core concepts and advanced technologies for addressing emerging challenges in environmental and biomedical applications. Sections cover early diagnostic techniques and accurate treatment strategies using bioinspired, sustainable technologies, including nanomaterials, nanoenzymes, biopolymers, electrochemical biomolecule sensors, biocompatible magnetic nanomaterials, quantum dots and hybrid structures, and DNA nanotechnology. Other sections discuss advanced technologies for sensing and remedying environmental pollutants, including but not limited to, photocatalytic oxidations, gum polysaccharides based nanostructured materials, bio-inspired and biocompatible nanomaterials, hydrogel nanocomposites, and contemporary enzymes and nanozymes based?technologies. Ultimately, the state-of-the-art chapters in this book will empower researchers to combine two complementary elements - chemical analysis use and biomedical applications. Provides the fundamental concepts of biophysical chemistry and emerging technologies to solve environmental and biomedical problems Describes the latest breakthrough research in biophysical chemistry and its applications to better understand biological systems Supports development of the latest disease diagnostic and treatment technologies Includes advances in physical chemistry and biology for the monitoring and remediation of environmental pollutants

Download or read book INTERPENETRATING POLYMER NETWORKS MODIFIED WITH ORGANOCLAY written by Dr. Krushna Chandra Pradhan and published by Newredmars Education Pvt Ltd. This book was released on with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is a pleaser to have first edition of the book “INTERPENETRATING POLYMER NETWORKS MODIFIED WITH ORGANOCLAY” which will be helpful to students and teacher doing research in interdisciplinary subject in science in large extent. This book has been written to help students in their special paper polymer chemistry at PG level. Utmost care has been taken to present this book in simple and lucid manner so that the student and teacher wound not find any difficulties in understanding. I will be grateful to students and teachers for their valuable suggestion about this book and they are free to point out any unwanted errors if any committed in the book.

Download or read book Kinetic Study of the Polymerization of Acrylamide Using 4 4 azobis cyanopentanoic Acid as an Initiator in Aqueous Solution written by Qi Zhou and published by . This book was released on 1987 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Random Controlled Free Radical Copolymerization of Acrylic Acid styrene and Tert butyl Acrylate styrene Mixtures Using Nitroxide Mediators written by Benoît H. Lessard and published by . This book was released on 2008 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: