A STUDY OF THE MISCIBILITY AND THE RHEOLOGICAL PROPERTIES OF THERMOTROPIC LIQUID-CRYSTALLINE POLYMERS IN THERMOPLASTIC MATRIX

By using FTIR and DSC, the interfacial property of the polymer blends of engineering thermoplastics (TPs): polycarbonate (PC) and polyethers ulfone (PES) with thermotropic liquid crystalline polymers (TLCPs) was studied. The TLCP/TP blend systems in this paper are mainly immiscibl e. The viscosity properties of the TLCP/TP blends were analyzed in det ail. The mechanism of the viscosity variation of the blends was discus sed. Based on the assumptions given in this paper, the reasoned theore tical formula of the blends' viscosity can express the abnormal variat ion of the viscosity of the TLCP/TP blends well. The variation regular ity of the viscosity of TLCP/TP blends during processing was analyzed in theory.