Synthesis and properties of poly(arylene ether ketones)

Abstract

The results of investigations of the synthesis and properties of poly(arylene ether ketones) prepared by electrophilic and nucleophilic substitution reactions are generalized and described systematically. Data on the effect of the polycondensation conditions on the molecular weight and properties of polymers are considered. A scientific knowledge about the effect of the synthesis conditions and the chemical structure of poly(arylene ether ketones) on their proper ties enabled the directed synthesis of polymers. Such polymers possess a complex of valuable performance (high thermal stability, good heat, chemical and mechanical resistance combined with unique specific impact strength), engineering, and new electrophysical properties. Key words: polycondensation, poly(arylene ether ketones), poly(arylene ketones), electro philic and nucleophilic substitution reactions, cardo polymers, high performance thermoplas tics, specific impact strength, effect of reversible electrical switching under external effects, random and block copolymers, chemical transformations. The origin and history of research on the linear poly condensation in the USSR date back to the late 1930s and the 1940-1950s. These studies were initiated by P. P. Shorygin and were carried out by V. V. Korshak and S. R. Rafikov first in the N. D. Zelinsky Institute of Organic Chemistry of the Academy of Sciences of the USSR (nowa days, ZIOC RAS) and then in the A. N. Nesmeyanov Institute of Organoelement Compounds of the Academy of Sciences of the USSR (nowadays, INEOS RAS). Later on, these studies were successfully developed by the scien tific school founded by V. V. Korshak in INEOS AS USSR and in the new center of scientific research on polycon densation in the Institute of Chemistry of the Bashkir Sci entific Center of the Ural Branch of the Academy of Sci * The review is dedicated to the 60th anniversary of the A. N. Nesmeyanov Institute of Organoelement Compounds of the Rus sian Academy of Sciences.

Structure-Property Relationship on the Example of Gas Separation Characteristics of Poly(Arylene Ether Ketone)s and Poly(Diphenylene Phtalide)

“…It has been previously shown that the BC method is more accurate, as it discriminates the bonds between the main chain and side groups that contribute significantly to polymer rigidity [57]. We can observe the same picture in Table 7, as follows: MAPEs and MPEs are mainly lower for BC, except for the C2 polymer.…”

“…Polyimides have the most numerous representation (Table 1); therefore, for this class, the predicted data are closest to the experimental ones [28,31,34]. For such a practically important and extensive class of polymers as poly(arylene ether ketone)s [56,57], the database [15] contains only 41 different structures, so for this class, the verification of predicted data is very interesting. Thus, in this work, a number of poly(arylene ether ketone)s (PAEKs), as well as poly(diphenylene phthalide), which only has a common structural element with one of the PAEKs, were synthesized and studied, and the process of verifying various methods for predicting transport parameters for these polymers was carried out.…”

“…Polyimides have the most numerous representation ( Table 1 ); therefore, for this class, the predicted data are closest to the experimental ones [ 29 , 32 , 35 ]. For such a practically important and extensive class of polymers as poly(arylene ether ketone)s [ 57 , 58 ], the database [ 15 ] contains only 41 different structures, so for this class, the verification of predicted data is very interesting.…”

Poly(ether ether ketone)s containing benzene pendant in the molecular chain: Synthesis, characterization and optical properties

“…Among these methods, the method of introducing bisphenol A into the polymer structure is one of the simplest methods and has been researched at the present stage. 24,25 Bisphenol A based polyether ether ketone is an amorphous polymer with good mechanical and optical properties.…”