Conformational studies on model compounds of polyamides with ether groups in their structure

J De Abajo, JG De la Campa, E Riande…

Index: Abajo, J. de; Campa, J. G. de la; Riande, E.; Garcia, J. M.; Jimeno, M. L. Journal of Physical Chemistry, 1993 , vol. 97, # 33 p. 8669 - 8674

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Abstract

The synthesis of 1, 5-dibenzamido-3-oxapentane (DEBA) and 1, 8-dibenzamid0-3, 6- dioxaoctane (TEBA), model compounds of polyamides with repeating units [-HNCOC~ H~ CONH (CHZ) ZO (CH~)~-] and [-HNCOC6H4-CONH (CH~)~ O (CHZ)~ O (CHZ)~-], respectively, is reported. The mean-square dipole moment,(p2), of both compounds was measured in dioxane solutions in the interval of temperatures 30-60 OC. The values of this ...