[11a-Z13-1~10] 12.1 Fabrications and Structure Controls

[11a-Z13-10] Odd-Even Effect of n-Alkanes in a Thin Film Revealed by IR pMAIRS

〇Mariko Yoshida¹, Nobutaka Shioya¹, Masamichi Fujii¹, Takafumi Shimoaka¹, Takeshi Hasegawa¹ (1.ICR, Kyoto Univ.)

Keywords:molecular orientation, spin-coating method, crystal polymorphism

Crystal structure of normal alkanes has an odd-even effect in a bulk phase. In the present study, films of alkanes are prepared by the spin-coating technique and the assembling molecular structure the thin film has been revealed by using the pMAIRS technique. Regardless of length of alkyl chains, alkanes have a perpendicular stance in the thin film.
The odd-numbered alkanes exhibit more vertically orientation than the even-numbered alkanes.