MOLECULAR CONFORMATIONS OF TRI- THROUGH PENTAMETHYLENE GLYCOL DIMETHYL ETHERS AS MODEL COMPOUNDS OF POLYETHERS

Abstract
Raman and infrared spectra were measured for CH3O(CH2)nOCH3(n=3–5) as model compounds of polyethers [–O(CH2)n–]p . The spectral observations, combined with the normal coordinate treatment, indicated that the conformational stabilities of the model compounds are closely related to the chain conformations of the polymers.