Modified aromatic polyethersulfones containing dichloroethylene and arylate groups in the main chain were modified . The kinetics of the synthesis of polyethersulfones by the method of acceptor-catalytic polycondensation was studied. By the methods of IR spectroscopy, elemental, X-ray phase analysis, the formation of polymers of a given structure is proved. It is shown that the property of the obtained polymers depends on the ratio of the starting monomers.
Copolyether ketones based on 4,4′-dioxydiphenylpropane and n-dihydroxybenzene were synthesized with 4,4′-difluorodiphenyl ketone by high-temperature polycondensation in diphenylsulfone. The structure and structures of the synthesized polymers are studied. The method of IR spectroscopy proved the formation of copolymers of a given structure.
The modified aromatic polyethersulfones are synthesized. It is shown that the property of the obtained polymers depends on the ratio of the starting monomers. The presence in the initial monomer of two chlorine atoms in combination with an unsaturated bond provides the polyethersulfones based on it with high fire resistance and good physical and chemical properties, including frost resistance.
Copolycarbonates based on 4,4′-dioxydiphenylpropane and 1,1-dichloro-2,2-di(3,5-dibromo-4-oxyphenyl) ethylene were synthesised, and their main properties were studied. The relationships governing the synthesis of copolymers by acceptor-catalytic polycondensation were determined, and the relationship between their composition, structure, and properties was established. It was shown that copolycarbonates possess a high softening point and high heat and flame resistance.
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