Optimization of Emulsion Polymerization of Styrene and Methyl Methacrylate (MMA)

Optimization of Emulsion Polymerization of Styrene and Methyl Methacrylate (MMA)

Author: Kam Yok Loke

Publisher:

Published: 2013

Total Pages: 67

ISBN-13:

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This paper studies the optimization of emulsion copolymerization of Styrene and Methyl Methacrylate (MMA). A model-based framework for optimal operation of copolymerization processes was used in gPROMS environment and enables us to predict the maximum monomer conversion for a given total monomer feed over the batch time. The complexities of the process were represented by mathematical models for optimization and control. A process model involving the equations for mass and energy balance describing the particle evolution in a batch reactor and diffusion controlled kinetics is incorporated into the optimization framework. The modeling is account for complex physic-chemical sub-processes involving particle formation mechanisms with two monomer droplets, surfactants, initiator and particulates. Using gPROMS, the system analyzed the data, created models, developed algorithms, manipulated and plotted based on the functions and data. The determination of optimal profile for control variables used for emulsion polymerization of styrene and MMA that yielded desired conversion with fixed batch time and fixed number average molecular weight in batch reactor respectively were carried out in batch reactor. Reduction of the pre-batch time increases the Mn but decreases the conversion (Xn). The faster the addition of monomer into the reactor, the earlier the growth of the polymer chain leading to higher Mn. The increases of the reaction temperature will decrease the Mn since increases of temperature will increase the rate of termination reaction.


Emulsion Polymerization and Its Applications in Industry

Emulsion Polymerization and Its Applications in Industry

Author: V. I. Eliseeva

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 231

ISBN-13: 1468416413

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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.


Chemistry and Technology of Emulsion Polymerisation

Chemistry and Technology of Emulsion Polymerisation

Author: A. M. van Herk

Publisher: John Wiley & Sons

Published: 2013-07-29

Total Pages: 388

ISBN-13: 1119953723

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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.


Principles and Applications of Emulsion Polymerization

Principles and Applications of Emulsion Polymerization

Author: Chorng-Shyan Chern

Publisher: John Wiley & Sons

Published: 2008-10-06

Total Pages: 268

ISBN-13: 0470377933

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Up-to-date coverage of methods of emulsion polymerization This book provides a comprehensive reference on emulsion polymerization methods,focusing on the fundamental mechanisms and kinetics of each process, as well as howthey can be applied to the manufacture of environmentally friendly polymeric materials. Topics covered include: Conventional emulsion polymerization Miniemulsion polymerization Microemulsion polymerization Industrial emulsion polymerization processes (primarily the semibatch and continuous reactions systems) The role of various colloidal phenomena in emulsion polymerization Important end-use properties of emulsion polymer (latex) products Information on industrial applications in paints, coatings, adhesives, paper and board, and more This is a hands-on reference for graduate students and professionals in polymerchemistry, chemical engineering, and materials science who are involved in researchon coatings, adhesives, rubber, latex, paints, finishes, and other materials that can becreated using various methods of emulsion polymerization.