Effect of Temperature on Kinetics of Bulk Polymerization of Methyl Acrylate
Effect of Temperature on Kinetics of Bulk Polymerization of Methyl Acrylate

Author: Fatin Azureen Zulkurnain

Publisher:

Published: 2014

Total Pages: 68

ISBN-13:

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This research objective is to determine the effect of temperature on the kinetics of bulk polymerization of methyl acrylate. Because of previous research has mentioned that free radical polymerization is poorly controlled and results in high molecular weight, this research will be run at certain temperature which can be considered high but it should be lower than the boiling point of the monomer itself. The method used in this research is by using Differential Scanning Calorimetry (DSC). The DSC will measure the heat flow associated with polymerization as a function of time in a controlled atmosphere. Therefore, the change in the kinetics of polymerization based on temperature can be determined by using this equipment. The graph for heat flow versus time is recorded by DSC software until the reaction is completed. By referring to the graph it can be seen that the reaction rate of polymerization increase with the increase of temperature. As a conclusion, from this research, it can be seen that changing the temperature can affect polymerization kinetics of methyl acrylate.

Temperature Effect on Polymerization Kinetics of Poly Methyl Methacrylate (PMMA)
Temperature Effect on Polymerization Kinetics of Poly Methyl Methacrylate (PMMA)

Author: Noor Hariah Wahab

Publisher:

Published: 2013

Total Pages: 31

ISBN-13:

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Polymerization is a process which is chemically combined of small molecules to produce a very large chain or network molecule, called a polymer. By the way, the small molecules may be alike, or they may represent of two, three, or more different compounds with different molecular weight. This research proposes is to study the effect of temperature on polymerization kinetics of methyl methacrylate (MMA). Thermal study on methyl methacrylate is important to explain the heat and mass transfer phenomena during polymerization reaction. The objective of this study is to determine the temperature effect on polymerization kinetics of methyl methacrylate (MMA) with initiator. Mass of methyl methacrylate as monomer will be fixed at 3miligrams and also mass of initiator which is azo-bisisobutyronitrile (AIBN) will constant at 2miligrams. These two components will put on the pan by micropipette. The pan will tightly seal and be put into the differential scanning calorimetry (DSC). Each of samples will run until five hours in different temperatures (35°C, 45°C, 55°C, 65°C and 75° C). Then the polymerization kinetics and heat released are analyzed using this differential scanning calorimetry (DSC). From the (DSC) the curves or data of temperature, time and heat released are obtained. From these result obtained, increasing the temperature will decrease the time of reaction taken. High temperature will increase the amount of heat low or heat release. As increase the temperature, the rate of reaction increase due to the increasing of collision frequency and produce more energy to start the reaction.

Radical Polymerization
Radical Polymerization

Author: Michael Buback

Publisher: John Wiley & Sons

Published: 2007-07-16

Total Pages: 270

ISBN-13: 3527320563

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The IUPAC-sponsored International Symposium on "Radical Polymerization: Kinetics and Mechanism" was held in Il Ciocco (Italia) during the week September 3-8, 2006. It was the fourth within the series of so-called SML conferences, which are the major scientific forum for addressing kinetic and mechanistic aspects of free-radical polymerization and of ontrolled radical polymerization. Top international authors like K. Matyjaszewski, T. P. Davis, T. Fukuda and others present their latest research. The five major themes covered were: Fundamentals of Free-Radical Polymerization, Heterogeneous Polymerization, Controlled Radical Polymerization, Polymer Reaction Engineering, and Polymer Characterization. SML IV again marked an important step forward toward the better understanding of the kinetics and mechanism of radical polymerization, which is extremely relevant for both conventional and controlled radical polymerization and for people in academia as well as in industry.