Download or read book Effect of Agitation Emulsifiers and Temperature on the Emulsion Polymerization of Styrene written by M. Lu and published by . This book was released on 1973 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Mechanical Agitation on the Emulsion Polymerization of Styrene Catalyzed by Potassium Persulfate written by S. R. Shunmukham and published by . This book was released on 1949 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mixed Emulsifier Effect in Emulsion Polymerization of Styrene written by Sebastian Varghese Kanakkanatt and published by . This book was released on 1966 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research and Development Studies Into the Basic Technology of Radiation Induced Emulsion Polymerization Including Small Scale Pilot Plant Systems written by V. T. Stannett and published by . This book was released on 1971 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Emulsion Polymerization and Its Applications in Industry written by V. I. Eliseeva and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a large body of Soviet work on emulsion polymerization, spanning a period of over three decades, that has been published primarily in the Russian language. Most of this has remained untranslated into English and hence un available to most other scientists. The value of this book lies primarily in the fact that it brings together the most important of these Soviet contributions, along with comment and analysis by the authors, who may be considered among the foremost authorities in this field in the Soviet Union. But the hundreds of literature citations go far beyond the borders of the Soviet Union and serve as an excellent bibliography of the world literature on emulsion polymerization up to the time this book was written. The book covers both fundamental and applied aspects. In the former are included discussions of particle formation mechanisms, a comprehensive theory of emulsion polymerization, copolymerization of polar monomers, and particle morphology and its implications with regard to derived film properties. Among the applied aspects are discussions of continuous emulsion polymerization, both tubular reactors and continuous stirred tank cascades, and various aspects con cerning the manufacture of some of the most important monomers, such as styrene, butadiene, vinyl acetate, methyl methacrylate, acrylonitrile, and chloroprene. This book will be an indispensable reference source for scientists who are entering the field as well as those who are experienced and who have wanted a ready access to this large body of literature.

Download or read book Effect of Stirring on the Emulsion Polymerization of Styrene when Catalyzed by Hydrogen Peroxide Catalysts written by Victor Lee Hallenbeck and published by . This book was released on 1948 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Agitation in Emulsion Polymerization of N Butyl Methacrylate and Its Copolymerization with N methylol Acrylamide written by Sitaraman Krishnan and published by . This book was released on 2002 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effects of agitation on the kinetics of emulsion polymerization of BMA were studied using reaction calorimetry. At a reaction temperature of 70°C, the molecular weight was higher at higher agitation speed, while at 50°C, the converse was true. The order of dependence of the mass of coagulum on the agitation speed depended on the surfactant coverage of the polymer particles: the variation was almost two-fold (1.2 to 2.3). The coagulum mass was related to surfactant coverage using results from the DLVO theory. The volume-surface average diameter of the monomer droplets in the emulsion scaled to the 1.6 power of agitation speed, and the droplet size distribution was log-normal.

Download or read book Effects of Ionic Strength on the Emulsifier free Emulsion Polymerization of Styrene in Water written by Xiaosan Li and published by . This book was released on 1997 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Emulsification and Polymerization of Alkyd Resins written by Jan W. Gooch and published by Springer Science & Business Media. This book was released on 2005-12-11 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emulsification of vegetable oil-based resins was a daunting task when the author began his research, but the subsequent technology spawned a generation of stable emulsions for waterborne coatings based on vegetable oil-based alkyd resins, oils and fatty acids. Autoxidative polymerization of emulsified alkyd resins is an innovative and original contribution to emulsion technology, because conventional emulsion-polymerization is not applicable to alkyd resins. Emulsified alkyd particles are polymerized while dispersed in stable aqueous media—an original and patented innovation. Smooth and fa- drying alkyd coatings are generated from non-polymerized emulsions and air-dried with conventional metal driers, and have met with marketing success. The pre-polymerization innovation for emulsified alkyd particles provides very fast air-drying coatings that have potential markets for interior architectural latex coatings and waterborne pressure-sensitive adhesives and inks. The author demonstrates his knowledge of chemical reaction kinetics by employing a combination of oxygen concentration, internal reactor pressure and other reactor variables to finely control the rate and degree of autoxidative polymerization. He meticulously calculates surfactant chemistry by measuring hydrophile-lipophile balance values, and solubility parameters to emulsify characterized resins. The relationship between hydrophi- lipophile values and solubility parameters is shown in explicit equations. Homogenization equipment used during the course of this research to generate emulsions is shown in detailed drawings together with concise particle size and distribution data. The author reports research spawned internationally by his research in the fields of alkyd-acrylic hybrids, polyester and oil-modified urethane resins.

Download or read book Emulsion Polymerization written by D.C. Blackley and published by Springer. This book was released on 1975-10-31 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Emulsion Polymerization written by Frank Alden Bovey and published by . This book was released on 1955 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Emulsion Polymerization written by Irja Piirma and published by . This book was released on 1982 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Emulsion Polymerization of Styrene at Various Temperatures written by Frank P. Brunetta and published by . This book was released on 1949 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Emulsion Polymerization of Styrene at High Temperatures Using Mixed Surfactants written by Jack C. Kelley and published by . This book was released on 1990 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Particles written by Masayoshi Okubo and published by Springer Science & Business Media. This book was released on 2005-02-10 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this special volume on polymer particles, recent trends and developments in the synthesis of nano- to micron-sized polymer particles by radical polymerization (Emulsion, Miniemulsion, Microemulsion, and Dispersion Polymerizations) of vinyl monomers in environmentally friendly heterogeneous aqueous and supercritical carbon dioxide fluid media are reviewed by prominent worldwide researchers. In addition to the important challenges and possibilities with regards to design and preparation of functionalized polymer particles of controlled size, the topics described are of great current interest due to the increased awareness of environmental issues.

Download or read book Effects of Agitation in Emulsion Polymerization written by Jinmo Hong and published by ProQuest. This book was released on 2008 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: In emulsion polymerization, agitation plays a significant role in the nucleation of polymer particles, the subsequent growth of these polymer particles, as well as coagulum formation. The emulsion copolymerization of n -butyl methacrylate (BMA) and N-methylolacrylamide (NMA) was investigated in a 2 L reactor via a two step process in which a seed of poly(n-butyl methacrylate) was initially formed (5% solids) and then BMA and NMA were fed semicontinuously to produce a 41% solids latex. Polymerization was carried out with sodium lauryl sulfate (SLS) as surfactant and potassium persulfate (KPS) as initiator using different types and diameters of impellers at various rotational speeds, resulting in different mixing and shear effects in the fluid. Particle diameters were characterized by DLS and CHDF. The evolution of the amount of coagulum in the bulk (latex) and on the wall surfaces (impeller/shaft/baffles) was studied via power input under different agitation conditions. Also, the effect of particle deposition on coagulum formation was studied with surface-modified impellers (Teflon/glass/stainless steel). It was found that coagulum formation increased with time, impeller speed, and impeller type (i.e., radial, radial/axial, and axial flow impellers). Most of the coagulum was formed on the impeller, shaft, and baffles. The evolution of the amount of coagulum in the latex increased non-linearly with increasing power, while the total amount of coagulum increased linearly with power. Different coagulum formation mechanisms were considered. One is coagulum formation in the bulk latex, which is caused by particle-particle interactions, while the other is coagulum formation on the wall surfaces which results from both particle-wall and particle-particle interactions on the particles comprising the coagulum. In the process of studying the evolution of coagulum formation during this reaction, scanning electron microscopy was applied to examine the coagulum found in the latex and on the surfaces of the reactor. Unexpectedly, large (micron size) hollow microspheres were found on the surfaces of the impeller and baffles during the seed stage. Subsequently, the mechanism of formation of these microspheres was investigated, not only in terms of their morphology, but also the molecular weight of the polymer formed. Coagulum recovered from the latex was found to have a molecular weight similar to the latex itself; however, coagulum formed on the reactor insert surfaces (i.e., impeller/shaft/baffles) had a significantly higher molecular weight. Three questions were addressed: (1) how were the hollow microspheres formed; (2) was the formation of microspheres unique to this system; and (3) can the hollow microspheres be intentionally fabricated. Detailed discussion of these questions is presented with the mechanism of formation of hollow microspheres.

Download or read book Emulsion Polymerization of Vinyl Acetate written by Mohamed S. El-Aasser and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is particularly appropriate that this symposium on the emulsion polymeriza tion of vinyl acetate was held in recognition of the industrial importance of poly(vinyl acetate) and vinyl acetate copolymers, and their rather unique properties among emulsion polymers in general. Poly( vinyl acetate) latexes were the first synthetic polymer latexes to be made on a commercial scale: their production using polyvinyl alcohol as emulsifier began in Germany during the mid-1930s and has continued to the present day, growing steadily with the years. Indeed, poly(vinyl acetate) latexes prepared with polyvinyl alcohol are still one of the mainstays of the adhesives industry. With the passing of time, however, vinyl acetate copolymers have been developed: copolymers with maleate esters such as dibutyl maleate, acrylate esters such as ethyl acrylate and butyl acrylate, versatic acid esters, and, more recently, ethylene. These versatile copolymers have found increasing use in more sophisticated adhesives with specialized properties, adhesives for clay coatings on paper, carpet backing, and interior and exterior paints. Thus more than 45 years after the first commercial production of vinyl acetate latexes, their use is still growing, both in actual quantities and different applications. The industrial importance of vinyl acetate latexes makes the mechanism and kinetics of their emulsion polymerization of practical as well as scientific interest.