- 作者: 丁尚武
- 作者服務機構: Department of Chemistry and Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung, Taiwan 80424, R.O.C.
- 中文摘要: We report in this article the application of a series of weakly ordered liquid crystal solvents for liquid state nuclear magnetic resonance (NMR) spectroscopy. The solvents are a n-alkyl-poly(ethylene glycol)/n-alkyl alcohol non-ionic liquid crystal system, first proposed by Ruckert and Otting (J. Am. Chem. Soc. 2000, 122, 7793). The merits of these solvents are further demonstrated by using them with a homogeneous polymer PEO which is one of the most studied polymer electrolyte materials, thus offering an answer to the question of whether the weak anisotropy introduced by liquid crystal solvents has any connection with the large-scale (3 one nanometer) heterogeneity (tertiary or higher orders of structure) of the system under study.
- 英文摘要: --
- 中文關鍵字: NMR; Liquid crystal solvent; Susceptibility anisotropy; Residual dipolar couplings; Homogeneous polymer; PEO.
- 英文關鍵字: NMR; Liquid crystal solvent; Susceptibility anisotropy; Residual dipolar couplings; Homogeneous polymer; PEO.