Preparation, mesomorphic properties and behaviour of 4,4'-biphenylenedibenzoates as stationary phases in gas chromatography.
This paper describes the preparation, mesomorphic properties and behaviour as stationary phases of a series of biphenylenedibenzoates. These compounds exhibit broad mesomorphic ranges with high solid-crystal-liquid-crystal transition temperatures, and give relatively short retention times in the determination of polynuclear aromatic hydrocarbons. The chromatographic selectivity for linear and planar structures is confirmed.
Chiavari
G
G
Istituto Chimico "G. Ciamician", Università di Bologna, Via Selmi, 2, 40100 Bologna, Italy.
Pastorelli
L
L
Perrakis
G
G