Comparative study of the separation of styrene oligomers by TLC and OPLC

Methods are described for the normal-phase separation of some styrene oligo mers by TEC and by overpressured-layer chromatography (OPLC) using the auto mated OPLC chromatograph. Results obtained by these techniques were compare d on the basis of their separation parameters to study the relationship Ite m een average plate height and development distance, resolution, and averag e retardation factor, and the correlation between R-M and degree of polymer ization. To characterize the automatic OPLC system, the dependence of avera ge plate height on flow rate and development distance was examined by use o f TLC and HPTLC sorbent layers.