The equilibrium association of urethane groups in a series of 4,4'-diphenylmethane diisocyanate/poly- (propylene oxide)-based poly(ether urethane) elastomers was studied on the basis of infra-red spectroscopy data. Thermodynamic parameters of the urethane-group association were estimated. The hard-segment equilibrium state was shown to fit a model of monomer solution association
Посилання на статтю:
Infra-red spectroscopy study of equilibrium association of urethane groups in poly(ether urethane)s / A. G. Strikovsky* and V. V. Zharkov // Polymer. – 1993. – Vol 34. – P. 3397-3401.