R-crystals actually pack particles more efficiently than z-crystals and because of this, the area fraction of the particle-rich phase ( 1-area fraction of ice crystals ) changes as the crystal population shifts from a mixture of z-and r-crystals to only z-crystals.
12.
"Example " : From the phase diagram of polystyrene ( molar mass 43, 600 g / mol ) in the solvent cyclohexane it follows that at a total polymer concentration of 10 %, cooling from 25 to 20 �C causes phase separation into a polymer-poor phase with 1 % polymer and a polymer-rich phase with 30 % polymer content.
