FT-IR Imaging System Research Of Liquid Crystalline Ionomers Compatibilized Characteristic To PBT/PP Blends

Polymer blends are mainly composed of components with diferent characters in some way, and these new materials have different assembled structures and capabilities. The key problem of designing blend is compatibilization among those polymer components. In the blends of noncompatibilization, the compatibilization is good or bad, which will show the reciprocity and behavior on the interface of several polymers. The difficulty to form one compatibilization blend mainly consists in that lower blend entropy and more blend heat will lead to not good thermodynamics condition. So the compatibilization of a blend containing two components is always a hot problem in the research field of macromolecule blends.This paper is based on the sample of PBT/PP/SLCI-COOH,PBT/PP/SLCI-N,PBT/PP/MLCI-COOH (SLCI-COOH,SLCI-N,MLCI-COOH represent lateral chain carboxyl,lateral chain amido,principal chain carboxyl Liquid Crystal Ionomers Polymer) blends.we scaned Total Absorbance of FT-IR imaging and standard spectrum, use the Compare Correlation image analyse fineness different between standard speatra, find out the distribution of component in the Total Absorbance. Otherwise we got layer image of each component in blend base on Compare Correlation image. Comparing the difference of each image, we can find apparently that the combination between LCI and PBT is better, but less good between LCI and PP. This result corresponds completely with the thermcapability data and crystalline data. Comparing the distribution of PP in layer image, with the addition of LCI, the area of PP phase changed, its maximal size diminished. When the content of SLCI-COOH is 7%, SLCI-N is 9%, MLCI-COOH is 11%, the distribution of PP phase became small and basically homogeneous. When LCI increased continually, its maximal size increased. LCI began to assemble as the Ionic effect itself, while the the distribution in the layer image became less homogeneous. Contrast the data of tensile strength and elongation at break, which showed that both the increase of LCI and the compatibilization would affect its properties in the blends.