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Initiation of the emulsion polymerization of vinyl chloride by the system of carbon tetrachloride and oxygen- or nitrogen-containing organic compound

V. Macho and M. Polievka

Research Institute for Petrochemistry, 972 71 Nov√°ky .

 

Abstract: The initiation system formed by polyhalogenalkanes, mainly by carbon tetrachloride and O- or N-containing organic compound, was investigated in the case of the emulsion polymerization of vinyl chloride. CCl4 was found to be the most effective, the effectiveness of CHCl3 is one fifth of CCl4; Cl2CHCHCl2 and Cl2C = CCl2 have virtually no influence on polymerization. From among oxygenous compounds especially alkali cellulose, lignin with sodium hydroxide, alkaline hemicelluloses, paraldehyde, dioxan, ethylene oxide, acetals, and ascorbic acid; from among N-containing compounds morpholine, piperidine, and allylamine are effective. Aqueous solution of an emulsifier is the most suitable, methanol to a lesser degree, and water is the least effective. The mechanism of the formation of initiation system as well as of the initiation of polymerization itself have been discussed.

Full paper in Portable Document Format: 321a66.pdf

 

Chemical Papers 32 (1) 66–74 (1978)

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