Figure 22. Optical micrographs showing three perspectives of hollow bowl-shaped type of P4MP crystals formed on cooling the polymer solutions to 70 °C. The crystals are in suspension in liquid, (a) Flat-on view, i.e., view along the central axis of the crystal, (b) Lower crystal is oriented edge-on with respect to the direction of observation. The orientation of upper crystal lies between the flat-on and edge-on perspectives.
Phase contrast, × 830.