The curing kinetics of an epoxy stoichiometrically equivalent mixture of 6,6'-bis (2,3-epoxypropoxy)-2,2' binaphthyl (EPBN) and 4,4'-diaminodiphenyl sulfone (DDS) has been determined experimentally. A liquid crystalline phase forms during the curing reaction. A phenomenological model of the curing process has been developed, with parameter values extracted from the data by fitting of separate parts of the DSC curves. If the conventional reaction scheme proposed for the addition reaction of amines to epoxy groups holds true, then the overall reaction can be modeled, and the contribution of the phase transition occurring during the hardening reaction can be evaluated and modeled.
Curing reaction kinetics of liquid crystalline resin based on 6,6'-bis(2,3-epoxypropoxy)-2,2' binaphthyl / E., Amendola; Carfagna, Cosimo; M., Giamberini; N., Fuccia; G., Micco. - In: MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY. SECTION A, MOLECULAR CRYSTALS AND LIQUID CRYSTALS. - ISSN 1058-725X. - 336:(1999), pp. 183-198.
Curing reaction kinetics of liquid crystalline resin based on 6,6'-bis(2,3-epoxypropoxy)-2,2' binaphthyl
CARFAGNA, COSIMO;
1999
Abstract
The curing kinetics of an epoxy stoichiometrically equivalent mixture of 6,6'-bis (2,3-epoxypropoxy)-2,2' binaphthyl (EPBN) and 4,4'-diaminodiphenyl sulfone (DDS) has been determined experimentally. A liquid crystalline phase forms during the curing reaction. A phenomenological model of the curing process has been developed, with parameter values extracted from the data by fitting of separate parts of the DSC curves. If the conventional reaction scheme proposed for the addition reaction of amines to epoxy groups holds true, then the overall reaction can be modeled, and the contribution of the phase transition occurring during the hardening reaction can be evaluated and modeled.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
