Radiation Polymerization of Ethylene in Organic Solvents. II.:Infrared Absorption Spectra and Melting Endothermic curves of the Products.

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Liquid as well as solid polymeric products are obtained by radiation polymerization of ethylene in cyclohexane containing carbon tetrachloride. The infrared absorption spectra indicate that the liquid product is structurally similar to the telomer and its -C-C- chain is rather extended. The solid product begins to show the properties of polyethylene as the polymerization reaction progresses. In this reaction, the telomer first formed probably grows into solid product through liquid intermediate. The solid product consists of three types of components of varying melting points. The component of relatively low melting point resembles with the liquid product, and it would probably change into the components with higher melting point as the reaction progresses. It is evident that some structural changes also take place as the molecular weight increases.
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