STUDIES ON STRUCTURE OF EO THF RANDOM COP OLYETHER(I) - NMR-STUDIES ON SOLUTION ACTION AND COMPLEX/

The special action of TEO solution was investigated by 1D, 2D-NMR in C DCl3. For the present measurements, when the concentration of TEO was higher in CDCl3, the chemical shift difference (Delta delta) and the p eak number of C-13 NMR spectrum were changed with increasing the solut ion concentration, At lower concentration(< 3% V/V ), the peaks will b e closed together for -CH2O- resonance carbon and it is not the appear ance of the narrowed, When temperature was changed, the Delta delta va lue was contrary to the solvent effect, So, the shifts of the resonanc e carbon in the NMR spectra indicated clearly that the complex formati on for the system of CDCl3, and TEO molecular interaction were affecte d by the experiment temperature and the solution concentration.