NMR Measurements of Liquid Crystals of Poly-γ-Benzyl-L-Glutamate in Static Electric Fields

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概要

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• A couple of parallel-plate electrodes have been made of Nesa glass. NMR spectra of liquid-crystalline solutions of poly-γ-benzyl-L-glutamate in static electric fields obtained using these electrodes are reliable. The signal of a solvent molecule such as dichloromethane or dibromomethane splits into a doublet owing to magnetic dipole-dipole interactions as in the case of the magnetic orientation of these solutions, indicating that the solvent molecules orient in the direction of the electric field. Dilute liquid-crystalline solutions which still do not contain isotropic portions evidently have a strong center signal showing presence of free solvent molecules. Orientation of the solvent molecules is apt to be disturbed by a weak electric current through the solution and magnitude of the steady-state separation of the doublet can not be used as a measure for the polymer (and molecular cluster) orientation.

• 社団法人日本物理学会の論文
• 1973-04-05

著者

• Iizuka Eisaku

  Faculty Of Texrile Science And Technology Shinshu University

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