Ah&r&-Ionic association in complexes of poly(propylene oxide) with alkali metal salts of thiocyanate, fluoroborate, and perchlorate anions was studied with Raman scattering and infrared transmission spectroscopy, Thiocyanate complexes are strongly coordinated through the nitrogen end of the anion. C
13C NMR studies of poly(propylene oxide) complexed with alkali iodes
β Scribed by R.E. Stark; S.G. Greenbaum; Y.S. Pak
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 304 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0167-2738
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π SIMILAR VOLUMES
relaxation times (1 Is) of cryptands [2.1.1], [2.2.1] and [2.2.2] as well as those of the corresponding crypeate complexes with Li+, Na+, and K+ in CDCl and CH OH:D 0 (9O:lO) were measured and the results are interpreted in terms of molesular co oreszion % and desolvation effects.
## Abstract ^13^C cross polarization and magicβangle spinning (CPMAS) NMR studies were made on poly(ethylene oxide) (PEO) complexed wit LiClO~4~, NaClO~4~, BaSCN, Bal~2~ and Ba(ClO~4~)~2~. The proton and carbon spinβlattice relaxation times in a rotating frame (__T__~1ΟH~, __T__~1ΟC~) as well as th