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Application of Weakly Oriented Non‐ionic Liquid Crystal Solvents to NMR Studies of Poly‐ethylene Oxide (PEO)
Author(s) -
Liu PinHsiu,
Ding Shangwu
Publication year - 2003
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200300029
Subject(s) - chemistry , ionic liquid , ethylene oxide , liquid crystal , ethylene glycol , alkyl , polymer , electrolyte , solvent , ionic bonding , nuclear magnetic resonance spectroscopy , polymer chemistry , organic chemistry , ion , materials science , optoelectronics , electrode , copolymer , catalysis
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 (≥ one nanometer) heterogeneity (tertiary or higher orders of structure) of the system under study.