Enhanced thermal conductivity of liquid crystal epoxide by phase-controlled topochemical polymerization
발표자
()
초록
내용
Liquid crystal epoxide (LCE) has attracted attention as a key material in improving the heat dissipation of electronic devices based on its versatility and high thermal conductivity (TC). In particular, mesogenic orientation of LCE is known to improve TC by reducing phonon scattering in the heat transfer process. In this study, we molecularly engineered LCE system to improve TC. The LCE was cured by using an imidazole-type agent and its LC phase was controlled by flexible chain length. Curing behavior was investigated by differential scanning calorimetry (DSC) and microstructure was characterized by polarizing optical microscopy (POM) and X-ray diffractometer (XRD). In addition, thermal properties were investigated by DSC, dynamic mechanical analysis (DMA), and TC measurement. The correlation between the microstructure and TC was investigated, and the results suggested the potential of its application as a heat-dissipation material.