ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
Preparation of styrene oligomers. I. Synthesis and fundamental characteristics
J. Polavka, M. Ondrejička, A. Blažková, V. Reiser, and L. Lapčík
Department of Physical Chemistry, Slovak Technical University,
812 37 Bratislava
Abstract: The polymerization of styrene by the effect of phosphoric acid and potassium bichromate in heterogeneous experimental arrangement was studied.
Silica gel was used as a carrier of catalyst. The synthesis was carried out in the
medium of nonpolar solvent (decalin) at 186°C. The reaction resulted almost in
100% conversion of monomer and a mixture of oligomers came into existence.
The dimer (50 mass %) and trimer (33 mass %) component prevailed in this
mixture. The fractionation and analysis of oligomer mixture was performed by
rectification and gas chromatography. The obtained reaction products were
characterized by means of mass spectroscopy, index of refraction, temperature
increment of the index of refraction, average numerical molecular mass, and
viscosity measurements in the temperature interval 20—50°C.
Full paper in Portable Document Format: 366a841.pdf
Chemical Papers 36 (6) 841–850 (1982)