Fig. 2.

Phase diagram for the X-ray diffraction of Di22:1PC containing penicillin at a 1/50 molar ratio as an example of the swelling method. The repeating distance D was 58.6 (opened square), 59.2 (opened circle) and 60.0 (opened triangle) Å at 90.0%, 94.0% and 98.0% RH, respectively. The black curve shows Fourier-constructed from the diffraction amplitudes measured at one humidity level. All other samples had similar phase diagrams.