In this work, FTi.r. spectroscopy has been used in order to verify the proposed influence of the hydroxyl group, present in each monomeric unit of the phenoxy (PH) resin, in the observed miscibility of this polymer with a variety of other polymer families such as polyoxides or polyesters. Two different approaches have been used for this purpose. First, FTi.r. studies at different temperatures have been carried out on mixtures of PH with polyoxides, in order to demonstrate the higher strength of the hydrogen bonds in the mixture with respect to those existing between pure PH molecules. Second, chemical modification of the PH resin, with a controlled elimination of the repetitive hydroxyl, has been carried out intending to relate the percentage of hydroxyl substitution to the observed miscibility of PH. In the second approach, mixtures of PH and modified PH with poly(N-vinyl-2-pyrrolidone) have been studied.
Посилання на статтю:
Phenoxy blends: an approach to the miscibility by FTi.r. and chemical modification of the interacting sites / M. J. Fernbndez-Berridi, M. Valero, A. Martinez de Ilarduya, E. Espiand J. J. Iruin // Polymer. – 1993. – Vol 34. – P. 38-42.