Phase Change Materials with Enhanced Heat Transfer by Introducing π-π Interactions of Thermal Conducting Core
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초록
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For the development of organic heat managing materials that reutilize the thermal energy by storing and releasing the heat during phase transitions, a graft polymer bearing phenylnaphthalene (PN) side-chain was newly synthesized as a phase change material (PCM). The intramolecular π–π interaction of the PN-based thermal conducting core achieved the enhancement of thermal conductivity and shape stability. The rigid aromatic cores of PN restricted the molecular motion and provided a phonon transfer pathway, resulting in good heat transfer properties as well as excellent heat storage capacity compared with transitional organic PCM. The fabricated organic PCMs can be applied in advanced thermal energy-saving materials. This work was supported by Mid-Career Researcher Program(2021R1A2C2009423) and BK21 Four Program.