Aromatic homogeneous and mixed polyethers were synthesized on the basis of interaction of cardotype bisphenols, 4,4′‐difluorohenylsulfone and methyl‐bis(chloromethylphosphine) oxide. The presence of phosphorus atoms in the main polymer chain increases the fire resistance of these of polymers.
Soluble polyurethanes containing bisphenol fragments in the chain were synthesized on base of card-type diols. The characteristics of the resulting polymers were studied t o find the kinetic regularities in the formation of these polyurethanes. The effects of temperature, duration of the reaction, initial concentration of the components in the reaction medium, and of the structure of the diols and diisocyanates were investigated. The rate constants of the reaction and the activation energy of the process were determined.
Synthese und Untersuchung yon Bisphenolfragmente enthaltenden DioEen und oon Polymeren auf dieser BasisLosliche Polyurethane, die Bisphenolfragmente in der Kette enthalten, wurden ausgehend von Diolen vom Cardo-Typ synthetisiert. Die Eigenschaften der erhaltenen Polymere wurden untersucht, um die kinetischen Besonderheiten der Bildung dieser Polyurethane festzustellen. Die Einflusse von Temperatur, Reaktionszeit, Anfangskonzentration der Komponenten im Reaktionsmedium sowie der Struktur der Diole und Diisocyanate wurden untersucht. Die Geschwindigkeitskonstanten der Reaktion und die Aktivierungsenergie des Prozesses wurden ermittelt. Acta Polymerica 39 (1988) Nr. 8 446 PAPAVA, MAISURADZE et al.: Synthesis and study of diols containing bisphenol fragments
Phosphorus‐containing aromatic polyethers were synthesized by nucleophilic substitution reactions on the basis of bisphenole containing card‐type cyclic substituents of difluorodiphenylsulfone, difluorobenzophenone, and methyl‐bis‐chloromethylphosphine oxide. The polymers are highly heat and fire resistant, and readily soluble in chlorinated hydrocarbons and other oganic solvents.
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