화학공학소재연구정보센터
Molecular Crystals and Liquid Crystals, Vol.436, 1017-1025, 2005
C-13-NMR studies on fluctuation of rod-like molecules in solution: Molecular dynamics in a polar solvent of CDCl3
To investigate the molecular dynamics of rod-like molecules in solution, C-13-NMR measurements of a liquid crystalline material (4-(1-methylheptyloxycarbonyl)phenyl 4'-octyloxybiphenyl-4-carboxylate: MHPOBC) with a CDCl3 solvent are carried out. When MHPOBC leaves the solution and deposits as crystals, peak broadening, which may result from a slowing down of molecular motion, occurs simultaneously. In addition, the correlation time T of the corresponding molecular motion is estimated to be approximately 10(-8)s by the spin-lattice relaxation time T-1 measurements.