Rate of High Pressure Radical Polymerization of Ethylene.
نویسندگان
چکیده
منابع مشابه
Compression, supramolecular organization and free radical polymerization of ethylene gas
At low pressure, ethylene gas consists of single translating and rotating molecules and behaves as an ideal gas. With decrease of free volume by compression, various rotating supramolecular particles are formed, which require less space for the movement: molecular pairs, bimolecules and oligomolecules. The appearance of a new kind of particles is manifested as a phase transition of the second o...
متن کاملThe Polymerization of Ethylene under High Pressure using Semiconductor's model
By examining the process of heat transfer at tubular reactor for LD-PE synthesis, it can be concluded that free electrons exists during polymerization. Additionally, no free electrons occur in the absence of polymerization. A model that can explain and describe this behavior of ethylene under high pressure is the semiconductor model.
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Free radical polymerization of ethylene in an intermediate pressure and temperature range (P(ethylene) < 250 bar and 50 °C < T < 90 °C) in the presence of an organic solvent has been studied. Under selected conditions (P, T) and according to the amount of organic solvent added, either a supercritical monophasic or a biphasic medium is obtained. In the case of a biphasic medium, polymerization o...
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The data on the effect of ethylene concentration on polymerization rate for several modifications of modern highly active titanium–magnesium catalysts TiCl4/MgCl2 are presented. These catalysts differ in titanium content and conditions of support preparation, activities, and the shape of kinetic curves. It is found that the observed order of polymerization rate with respect to ethylene in the r...
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ژورنال
عنوان ژورنال: The Journal of the Society of Chemical Industry, Japan
سال: 1959
ISSN: 0023-2734,2185-0860
DOI: 10.1246/nikkashi1898.62.7_950