Liquid crystalline epoxy vitrimer: design, synthesis, and properties
발표자
()
초록
내용
Nowadays, demand for thermal conductive thermoset materials in high-tech fields is rapidly increasing. Liquid crystalline epoxy (LCE) is a prominent candidate because of its superior mechanical strength and outstanding intrinsic heat-dissipating ability. Ironically, almost LCEs are arduous to be recycled after use putting a burden on the environment. The best solution is to introduce covalent adaptable networks (CANs) such as imine, ester, and disulfide in the thermoset structure to make the cured products can be reprocessable and recyclable. Here, a series of LCE vitrimers (LCEV) bearing the imine and ester groups was synthesized and characterized by suitable analysis methods. All monomers display a typical nematic phase with a wide range of temperatures. Their cured products with diaminodiphenylmethane in the LC phase show high thermal conductivity, good mechanical properties, excellent reprocessability, and chemical recyclability. In the presentation, the details will be discussed.