Reactive Compatibilization of the Blends based on Thermotropic Liquid Crystalline Polyester and Poly(cyclohexylenedimethylene terephthalate)
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초록
내용
Most polymers have a limiting that does not mix with each other, so they are divided into each phase when melt-mixed. The compatibility of polymer blends can be generated by adding a compatibilizer, catalyst, or copolymer having a similar molecular structure to each parent polymer. Transesterification catalysts improve compatibility by forming a copolymer between the two immiscible polymers having an ester group. Thermotropic liquid crystalline aromatic polyester (TLCP)/poly(cyclohexylenedimethylene terephthalate) (PCT) blends prepared by melt-compounding are immiscible. In this study, transesterification catalysts are added to increase the compatibility of TLCP/PCT blends. The morphology and microstructures of TLCP/PCT blends melt-compouded in the presence of the catalysts are characterized with aids of SEM, FT-IR, and XRD. The thermal, rheological, and mechanical properties of the blends are analyzed by using DSC, TGA, rheometer, and DMA.