ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Emulsion polymerization of styrene initiated by peroxides of powdered isotactic polypropylene in the presence of triethylenetetramine

P. Citovický, I. Šimek, D. Mikulášová, V. Chrástová, and J. Řezníček

Lehrstuhl für Chemische Kunststoff- und Faser-Technologie der Slowakischen Technischen Hochschule, SSO 37 Bratislava

Abstract: On the basis of the planned experiment of orthogonal type the influence of an amine activator of polymerization (triethylenetetramine) and of an emulsifier (Mersol H) on the formation of polystyrene initiated by peroxides of the ozonized isotactic powdered polypropylene at 35°C is investigated. The interaction character of both components of the system has been proved. Triethylenetetramine, depending on the emulsifier content works at lower concentrations as a polymerization activator; at higher concentrations the polymerization rate gradually decreases. The higher concentrations of emulsifier are more favourable for the formation of polymer in the presence of triethylenetetramine. The results are correlated also with the influence of these components on the decomposition of hydroperoxides of the ozonized polypropylene.

Full paper in Portable Document Format: 286a802.pdf (in German)

Chemical Papers 28 (6) 802–809 (1974)