Synthesis and properties of thermally conductive liquid crystalline epoxy with flexible chains
발표자
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초록
내용
Recently, the heat dissipation performance of polymer materials received great attention due to the increasing heat generation in the device. Heat-dissipating polymers have the versatility that was used in various electronic materials such as high-power LED lighting, home appliances, mobile devices, and solar cells. In this study, we designed monomers with liquid crystal properties to improve thermal conductivity and characterize thermosetting polymer with controlling flexible spacer chains. The chemical structure was characterized by 1H-NMR, 13C-NMR, and mass spectrometry (MS/MS). The curing reaction was investigated by Differential Scanning Calorimetry (DSC). Microscopic structure confirmed by Polarized Optical Microscopy (POM) and X-ray Diffraction Analysis (XRD). The thermal and mechanical properties were confirmed by Thermogravimetric Analyzer (TGA), Dynamic Mechanical Analyzer (DMA), and DSC. The curing materials recorded high thermal conductivity up to ~ 0.5 W/m·K.