The polymers used in this study are a polydisperse bisphenol-A polycarbonate (PC: Aldrich #18,162-5) and two different poly(methyl methacrylates), one polydisperse (PMMAp: Fisher #M-215) and the other monodisperse (PMMAm: Pressure Chemicals #PM-8).
PC 16 26 1.63 150 PMMAp 48 90 1.86 88 PMMAm 92 97 1.05 128
Similar results have been obtained in our laboratories, and it was decided to prepare some ternary blends involving polydisperse PMMAp, together with small amounts of monodisperse PMMAm, as a means of controlling the phase separation of PC/PMMA blends.