SYNTHESIS OF POLYMERIC MATERIALS BASED ON AROMATIC POLYESTER MATERIALS BY HIGH-TEMPERATURE POLYCONDENSATION

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 61-73 p.
As part of solving the problem of creating recipes for the synthesis of domestic superconstruction polymers, work was carried out on the synthesis of aromatic polyester materials with a complex of valuable performance characteristics. It has been established that it is possible to improve the economic performance of the PCM synthesis process based on aromatic polyesters by replacing the traditional 4,4'-difluorobenzophenone monomer with a chlorine-containing functional analog, which makes it possible to synthesize new materials with a cost up to 6 times lower than known competitors. The paper studies the features and determines the optimal conditions for the synthesis of new aromatic polyester materials: oligoetherketones and polyetherketones, polyimides and polyeth-erimides, to create binders for the impregnation of glass and carbon reinforcing fillers. It is described that the syn-thesis of polyimides (PI) was carried out by a two-stage method: obtaining a polyamic acid (PAA) and obtaining an insoluble diversified polymer. It has been established that by replacing the expensive dihalide, it is possible to a large extent to reduce the cost of synthesized polymers, increase their yield and manufacturability. A complex of physicochemical studies by various methods has been carried out, the structure of the synthesized polymers has been established, it has been determined that new polyester materials based on poly(aryleneetherketones) and pol-yetherimides are superior in their basic physicochemical and operational properties to industrial analogous poly-ester superstructural materials.
Keywords:
oligoetherketone, polyetherketone, polyimide, polyetherimide, heat resistance, heat resistance, aromatic polyester
Chukov N.A.
Leading Engineer, Intersectoral Engineering Center “Composites of Russia”, Bauman Moscow State Technical University
Borodulin A.S.
Deputy Director, Intersectoral Engineering Center “Composites of Russia”, Bauman Moscow State Technical University
Khashozheva R.R.
Candidate of Engineering Sciences (Ph.D.), Kabardino-Balkarian State University named after H.M. Berbekov
Kozlova E.E.
Chief Specialist, JSC "LRICT", Moscow
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