Morphology and properties of blends of polysulfone with a semiaromatic liquid crystalline polymer

In order to improve the processing ability of Polysulfone (PSU) without losing its excellent mechanical and thermal properties, a semiaromatic polyester (exhibiting thermotropic liquid crystalline property in 225 [similar to] 340°C was used to blend with PSU. The thermal properties, rheology, morphology and mechanical properties of various blends having different ratios were investigated. When the loading level of the semiaromatic polyester is about 5% [similar to] 10% by weight, the blends exhibit lower viscosity, better mechanical properties. But the components of the blends are incompatible, blending high amount of the polyester to PSU make its properties decrease.