Discrete and sequential formation of helical nanofilaments in mixtures consisting of bent- and rod-shaped molecules
Hiroki Nagayama, Yuji Sasaki, Fumito Araoka, Kenji Ema, Ken Ishikawa and Hideo Takezoe
We have studied the phase transition from the isotropic to B4 phase in a mixture of bent- and rod-shaped molecules. Highly sensitive DSC showed many heat-capacity anomaly peaks upon cooling, strongly suggesting the discrete and sequential growth of helical nanofilaments or their assemblies. Such growth process of the B4 phase was confirmed by IRand UV-Vis absorption spectra.
Vibrational circular dichroism, rod-shaped molecules, nanofilaments