Presentation Information
[23a-A304-6]Thermal transport properties of α,ω-alkyl dicarboxylic acids
〇Taketo Tano1, Ryosuke Takehara1, Naoyuki Karasawa2, Hisao Nakamura2, Meguya Ryu2, Tomoya Hukui1, Kumiko Takenouchi1, Junko Morikawa1, Takanori Fukushima1 (1.Tokyo Tech, 2.AIST)
Keywords:
thermal diffusivity,hydrogen bonds,organic single crystal
To evaluate how hydrogen bonding affects thermal transport properties of organic materials, we measured the thermal diffusivity of single crystalline sample of four a,w-alkyl dicarboxylic acids with isomorphic crystal structures. Since these molecules have different numbers of covalent and hydrogen bonds per unit length, they allow us to discuss the effect of hydrogen bonds on thermal transports in comparison with that of covalent C–C bonds. The obtained results showed that the values of thermal diffusivity in the direction of hydrogen bonding are approximately one order of magnitude higher than those of common organic materials without hydrogen bonding. It was also suggested that hydrogen bonding could provide thermal transport pathways comparable to those of covalent bonding.