PHASE-DIAGRAM OF THE POLY(GAMMA-BENZYL-L- GLUTAMATE)-DIMETHYLFORMAMIDE SYSTEM IN THE ENTIRE RANGE OF CONCENTRATIONS

Phase diagram of the poly(gamma-benzyl-L-glutamate) dimethylformamide (PBG-DMF) system in the entire range of concentrations was constructed using a combination of data available in the literature. A special ro le in the phase diagram belongs to the region of crystal solvate, whic h is analogous to the Luzzati ''complex'' phase, The proposed phase di agram of the PBG-DMF system exhibits a region of coexistence of the LC and crystal solvate phases instead of the region of two LC phases acc ording to the well-known Flory diagram, The shape of the phase diagram generally coincides with a qualitative pattern proposed by Papkov for the solutions of rodlike molecules in the presence of a crystal solva te phase.